Path

Access specific elements within a JSON document

Paths let you access specific elements within a JSON document. Since no standard for JSON path syntax exists, Redis JSON implements its own. JSON's syntax is based on common best practices and intentionally resembles JSONPath.

JSON supports two query syntaxes: JSONPath syntax and the legacy path syntax from the first version of JSON.

JSON knows which syntax to use depending on the first character of the path query. If the query starts with the character $, it uses JSONPath syntax. Otherwise, it defaults to the legacy path syntax.

The returned value is a JSON string with a top-level array of JSON serialized strings. And if multi-paths are used, the return value is a JSON string with a top-level object with values that are arrays of serialized JSON values.

JSONPath support

RedisJSON v2.0 introduced JSONPath support. It follows the syntax described by Goessner in his article.

A JSONPath query can resolve to several locations in a JSON document. In this case, the JSON commands apply the operation to every possible location. This is a major improvement over legacy path queries, which only operate on the first path.

Notice that the structure of the command response often differs when using JSONPath. See the Commands page for more details.

The new syntax supports bracket notation, which allows the use of special characters like colon ":" or whitespace in key names.

If you want to include double quotes in a query from the CLI, enclose the JSONPath within single quotes. For example:

JSON.GET store '$.inventory["mountain_bikes"]'

JSONPath syntax

The following JSONPath syntax table was adapted from Goessner's path syntax comparison.

Syntax element Description
$ The root (outermost JSON element), starts the path.
. or [] Selects a child element.
.. Recursively descends through the JSON document.
* Wildcard, returns all elements.
[] Subscript operator, accesses an array element.
[,] Union, selects multiple elements.
[start:end:step] Array slice where start, end, and step are index values. You can omit values from the slice (for example, [3:], [:8:2]) to use the default values: start defaults to the first index, end defaults to the last index, and step defaults to 1. Use [*] or [:] to select all elements.
?() Filters a JSON object or array. Supports comparison operators (==, !=, <, <=, >, >=, =~), logical operators (&&, ||, !), arithmetic operators (+, -, *, /, %), membership operators (in, nin), set-relation operators (subsetof, anyof, noneof), the (size/sizeof, empty) operators, and parenthesis ((, )).
() Script expression.
@ The current element, used in filter or script expressions.
~ Returns the names of an object's members as a list of strings.

Beginning with Redis 8.10, the JSON data type supports a richer JSONPath syntax, with additional operators and functions:

These operators can be used within a filter expression (?()). Functions can appear inside filter expressions and, when they return a value, as top-level projection expressions. A function can be written in prefix form, length($.arr), or in postfix (method) form, $.arr.length(). A path segment immediately followed by ( is a method call, so $.arr.length() is a function call while $.arr.length is a reference to a field named length.

Warning:

Beginning with Redis 8.10, two changes to path parsing may affect existing queries:

  • To access a field whose name contains a tilde (~), use bracket notation, for example $["a~b"]. A tilde is no longer valid in a field name using dot notation.
  • The words in, nin, subsetof, anyof, noneof, size, sizeof, and empty are now reserved as operators. To access a field with one of these names, use $.size or $["size"].

Evaluation semantics

The following rules apply to the operators and functions described below:

  • The "Nothing" result. Any operand that cannot be evaluated — a non-numeric arithmetic operand, division or modulo by zero, an out-of-range index, a wrong argument count, a type mismatch, or an arithmetic overflow to a non-finite value — evaluates to Nothing. Inside a filter, a Nothing result makes the surrounding condition false, so the element is skipped. As a projection, it produces an empty reply ([]). Evaluation never returns an error and never fails the query for these cases.
  • Number coercion. The ==, !=, in, nin, and set-relation operators treat integer and floating-point numbers with the same value as equal (for example, 1 equals 1.0). The ordering operators (<, <=, >, >=) cannot compare against an array or object literal, so such a comparison never matches.
  • Node lists match on "any". When an operand selects more than one node (for example, @.*), a comparison or operator holds if any selected node satisfies it.
  • Arithmetic operators must be surrounded by spaces. @.a + 1 is addition, but @.a+1 is a reference to a field literally named a+1, because the field-name character set includes characters such as +, -, /, %, $, ^, :, and _.
  • Functions are arity-checked. Calling a function with the wrong number of arguments produces Nothing rather than silently using a subset of the arguments.

JSONPath examples

The following examples use this JSON document, which stores details about items in a store's inventory:

{
    "inventory": {
        "mountain_bikes": [
            {
                "id": "bike:1",
                "model": "Phoebe",
                "description": "This is a mid-travel trail slayer that is a fantastic daily driver or one bike quiver. The Shimano Claris 8-speed groupset gives plenty of gear range to tackle hills and there\u2019s room for mudguards and a rack too.  This is the bike for the rider who wants trail manners with low fuss ownership.",
                "price": 1920,
                "specs": {"material": "carbon", "weight": 13.1},
                "colors": ["black", "silver"],
            },
            {
                "id": "bike:2",
                "model": "Quaoar",
                "description": "Redesigned for the 2020 model year, this bike impressed our testers and is the best all-around trail bike we've ever tested. The Shimano gear system effectively does away with an external cassette, so is super low maintenance in terms of wear and tear. All in all it's an impressive package for the price, making it very competitive.",
                "price": 2072,
                "specs": {"material": "aluminium", "weight": 7.9},
                "colors": ["black", "white"],
            },
            {
                "id": "bike:3",
                "model": "Weywot",
                "description": "This bike gives kids aged six years and older a durable and uberlight mountain bike for their first experience on tracks and easy cruising through forests and fields. A set of powerful Shimano hydraulic disc brakes provide ample stopping ability. If you're after a budget option, this is one of the best bikes you could get.",
                "price": 3264,
                "specs": {"material": "alloy", "weight": 13.8},
            },
        ],
        "commuter_bikes": [
            {
                "id": "bike:4",
                "model": "Salacia",
                "description": "This bike is a great option for anyone who just wants a bike to get about on With a slick-shifting Claris gears from Shimano\u2019s, this is a bike which doesn\u2019t break the bank and delivers craved performance.  It\u2019s for the rider who wants both efficiency and capability.",
                "price": 1475,
                "specs": {"material": "aluminium", "weight": 16.6},
                "colors": ["black", "silver"],
            },
            {
                "id": "bike:5",
                "model": "Mimas",
                "description": "A real joy to ride, this bike got very high scores in last years Bike of the year report. The carefully crafted 50-34 tooth chainset and 11-32 tooth cassette give an easy-on-the-legs bottom gear for climbing, and the high-quality Vittoria Zaffiro tires give balance and grip.It includes a low-step frame , our memory foam seat, bump-resistant shocks and conveniently placed thumb throttle. Put it all together and you get a bike that helps redefine what can be done for this price.",
                "price": 3941,
                "specs": {"material": "alloy", "weight": 11.6},
            },
        ],
    }
}

First, create the JSON document in your database:

Setup: Create a complex JSON document with nested objects and arrays to use in JSONPath examples
> JSON.SET bikes:inventory $ '{ "inventory": { "mountain_bikes": [ { "id": "bike:1", "model": "Phoebe", "description": "This is a mid-travel trail slayer that is a fantastic daily driver or one bike quiver. The Shimano Claris 8-speed groupset gives plenty of gear range to tackle hills and there\'s room for mudguards and a rack too. This is the bike for the rider who wants trail manners with low fuss ownership.", "price": 1920, "specs": {"material": "carbon", "weight": 13.1}, "colors": ["black", "silver"] }, { "id": "bike:2", "model": "Quaoar", "description": "Redesigned for the 2020 model year, this bike impressed our testers and is the best all-around trail bike we\'ve ever tested. The Shimano gear system effectively does away with an external cassette, so is super low maintenance in terms of wear and tear. All in all it\'s an impressive package for the price, making it very competitive.", "price": 2072, "specs": {"material": "aluminium", "weight": 7.9}, "colors": ["black", "white"] }, { "id": "bike:3", "model": "Weywot", "description": "This bike gives kids aged six years and older a durable and uberlight mountain bike for their first experience on tracks and easy cruising through forests and fields. A set of powerful Shimano hydraulic disc brakes provide ample stopping ability. If you\'re after a budget option, this is one of the best bikes you could get.", "price": 3264, "specs": {"material": "alloy", "weight": 13.8} } ], "commuter_bikes": [ { "id": "bike:4", "model": "Salacia", "description": "This bike is a great option for anyone who just wants a bike to get about on With a slick-shifting Claris gears from Shimano\'s, this is a bike which doesn\'t break the bank and delivers craved performance. It\'s for the rider who wants both efficiency and capability.", "price": 1475, "specs": {"material": "aluminium", "weight": 16.6}, "colors": ["black", "silver"] }, { "id": "bike:5", "model": "Mimas", "description": "A real joy to ride, this bike got very high scores in last years Bike of the year report. The carefully crafted 50-34 tooth chainset and 11-32 tooth cassette give an easy-on-the-legs bottom gear for climbing, and the high-quality Vittoria Zaffiro tires give balance and grip.It includes a low-step frame , our memory foam seat, bump-resistant shocks and conveniently placed thumb throttle. Put it all together and you get a bike that helps redefine what can be done for this price.", "price": 3941, "specs": {"material": "alloy", "weight": 11.6} } ] }}'
inventory_json = {
    "inventory": {
        "mountain_bikes": [
            {
                "id": "bike:1",
                "model": "Phoebe",
                "description": "This is a mid-travel trail slayer that is a fantastic "
                "daily driver or one bike quiver. The Shimano Claris 8-speed groupset "
                "gives plenty of gear range to tackle hills and there\u2019s room for "
                "mudguards and a rack too.  This is the bike for the rider who wants "
                "trail manners with low fuss ownership.",
                "price": 1920,
                "specs": {"material": "carbon", "weight": 13.1},
                "colors": ["black", "silver"],
            },
            {
                "id": "bike:2",
                "model": "Quaoar",
                "description": "Redesigned for the 2020 model year, this bike "
                "impressed our testers and is the best all-around trail bike we've "
                "ever tested. The Shimano gear system effectively does away with an "
                "external cassette, so is super low maintenance in terms of wear "
                "and tear. All in all it's an impressive package for the price, "
                "making it very competitive.",
                "price": 2072,
                "specs": {"material": "aluminium", "weight": 7.9},
                "colors": ["black", "white"],
            },
            {
                "id": "bike:3",
                "model": "Weywot",
                "description": "This bike gives kids aged six years and older "
                "a durable and uberlight mountain bike for their first experience "
                "on tracks and easy cruising through forests and fields. A set of "
                "powerful Shimano hydraulic disc brakes provide ample stopping "
                "ability. If you're after a budget option, this is one of the best "
                "bikes you could get.",
                "price": 3264,
                "specs": {"material": "alloy", "weight": 13.8},
            },
        ],
        "commuter_bikes": [
            {
                "id": "bike:4",
                "model": "Salacia",
                "description": "This bike is a great option for anyone who just "
                "wants a bike to get about on With a slick-shifting Claris gears "
                "from Shimano\u2019s, this is a bike which doesn\u2019t break the "
                "bank and delivers craved performance.  It\u2019s for the rider "
                "who wants both efficiency and capability.",
                "price": 1475,
                "specs": {"material": "aluminium", "weight": 16.6},
                "colors": ["black", "silver"],
            },
            {
                "id": "bike:5",
                "model": "Mimas",
                "description": "A real joy to ride, this bike got very high "
                "scores in last years Bike of the year report. The carefully "
                "crafted 50-34 tooth chainset and 11-32 tooth cassette give an "
                "easy-on-the-legs bottom gear for climbing, and the high-quality "
                "Vittoria Zaffiro tires give balance and grip.It includes "
                "a low-step frame , our memory foam seat, bump-resistant shocks and "
                "conveniently placed thumb throttle. Put it all together and you "
                "get a bike that helps redefine what can be done for this price.",
                "price": 3941,
                "specs": {"material": "alloy", "weight": 11.6},
            },
        ],
    }
}

res1 = r.json().set("bikes:inventory", "$", inventory_json)
print(res1)  # >>> True
const inventoryJSON = {
  "inventory": {
    "mountain_bikes": [{
        "id": "bike:1",
        "model": "Phoebe",
        "description": "This is a mid-travel trail slayer that is a fantastic daily driver or one bike quiver. The Shimano Claris 8-speed groupset gives plenty of gear range to tackle hills and there\u2019s room for mudguards and a rack too.  This is the bike for the rider who wants trail manners with low fuss ownership.",
        "price": 1920,
        "specs": {
          "material": "carbon",
          "weight": 13.1
        },
        "colors": ["black", "silver"],
      },
      {
        "id": "bike:2",
        "model": "Quaoar",
        "description": "Redesigned for the 2020 model year, this bike impressed our testers and is the best all-around trail bike we've ever tested. The Shimano gear system effectively does away with an external cassette, so is super low maintenance in terms of wear and teaawait client. All in all it's an impressive package for the price, making it very competitive.",
        "price": 2072,
        "specs": {
          "material": "aluminium",
          "weight": 7.9
        },
        "colors": ["black", "white"],
      },
      {
        "id": "bike:3",
        "model": "Weywot",
        "description": "This bike gives kids aged six years and older a durable and uberlight mountain bike for their first experience on tracks and easy cruising through forests and fields. A set of powerful Shimano hydraulic disc brakes provide ample stopping ability. If you're after a budget option, this is one of the best bikes you could get.",
        "price": 3264,
        "specs": {
          "material": "alloy",
          "weight": 13.8
        },
      },
    ],
    "commuter_bikes": [{
        "id": "bike:4",
        "model": "Salacia",
        "description": "This bike is a great option for anyone who just wants a bike to get about on With a slick-shifting Claris gears from Shimano\u2019s, this is a bike which doesn\u2019t break the bank and delivers craved performance.  It\u2019s for the rider who wants both efficiency and capability.",
        "price": 1475,
        "specs": {
          "material": "aluminium",
          "weight": 16.6
        },
        "colors": ["black", "silver"],
      },
      {
        "id": "bike:5",
        "model": "Mimas",
        "description": "A real joy to ride, this bike got very high scores in last years Bike of the year report. The carefully crafted 50-34 tooth chainset and 11-32 tooth cassette give an easy-on-the-legs bottom gear for climbing, and the high-quality Vittoria Zaffiro tires give balance and grip.It includes a low-step frame , our memory foam seat, bump-resistant shocks and conveniently placed thumb throttle. Put it all together and you get a bike that helps redefine what can be done for this price.",
        "price": 3941,
        "specs": {
          "material": "alloy",
          "weight": 11.6
        },
      },
    ],
  }
};

const res28 = await client.json.set("bikes:inventory", "$", inventoryJSON);
console.log(res28); //  OK
        String inventory_json = "{"
        + "    \"inventory\": {"
        + "        \"mountain_bikes\": ["
        + "            {"
        + "                \"id\": \"bike:1\","
        + "                \"model\": \"Phoebe\","
        + "                \"description\": \"This is a mid-travel trail slayer that is a "
        + "fantastic daily driver or one bike quiver. The Shimano Claris 8-speed groupset "
        + "gives plenty of gear range to tackle hills and there\u2019s room for mudguards "
        + "and a rack too.  This is the bike for the rider who wants trail manners with "
        + "low fuss ownership.\","
        + "                \"price\": 1920,"
        + "                \"specs\": {\"material\": \"carbon\", \"weight\": 13.1},"
        + "                \"colors\": [\"black\", \"silver\"]"
        + "            },"
        + "            {"
        + "                \"id\": \"bike:2\","
        + "                \"model\": \"Quaoar\","
        + "                \"description\": \"Redesigned for the 2020 model year, this "
        + "bike impressed our testers and is the best all-around trail bike we've ever "
        + "tested. The Shimano gear system effectively does away with an external cassette, "
        + "so is super low maintenance in terms of wear and tear. All in all it's an "
        + "impressive package for the price, making it very competitive.\","
        + "                \"price\": 2072,"
        + "                \"specs\": {\"material\": \"aluminium\", \"weight\": 7.9},"
        + "                \"colors\": [\"black\", \"white\"]"
        + "            },"
        + "            {"
        + "                \"id\": \"bike:3\","
        + "                \"model\": \"Weywot\","
        + "                \"description\": \"This bike gives kids aged six years and older "
        + "a durable and uberlight mountain bike for their first experience on tracks and easy "
        + "cruising through forests and fields. A set of powerful Shimano hydraulic disc brakes "
        + "provide ample stopping ability. If you're after a budget option, this is one of the "
        + "best bikes you could get.\","
        + "                \"price\": 3264,"
        + "                \"specs\": {\"material\": \"alloy\", \"weight\": 13.8}"
        + "            }"
        + "        ],"
        + "        \"commuter_bikes\": ["
        + "            {"
        + "                \"id\": \"bike:4\","
        + "                \"model\": \"Salacia\","
        + "                \"description\": \"This bike is a great option for anyone who just "
        + "wants a bike to get about on With a slick-shifting Claris gears from Shimano\u2019s, "
        + "this is a bike which doesn\u2019t break the bank and delivers craved performance.  "
        + "It\u2019s for the rider who wants both efficiency and capability.\","
        + "                \"price\": 1475,"
        + "                \"specs\": {\"material\": \"aluminium\", \"weight\": 16.6},"
        + "                \"colors\": [\"black\", \"silver\"]"
        + "            },"
        + "            {"
        + "                \"id\": \"bike:5\","
        + "                \"model\": \"Mimas\","
        + "                \"description\": \"A real joy to ride, this bike got very high scores "
        + "in last years Bike of the year report. The carefully crafted 50-34 tooth chainset "
        + "and 11-32 tooth cassette give an easy-on-the-legs bottom gear for climbing, and the "
        + "high-quality Vittoria Zaffiro tires give balance and grip.It includes a low-step "
        + "frame , our memory foam seat, bump-resistant shocks and conveniently placed thumb "
        + "throttle. Put it all together and you get a bike that helps redefine what can be "
        + "done for this price.\","
        + "                \"price\": 3941,"
        + "                \"specs\": {\"material\": \"alloy\", \"weight\": 11.6}"
        + "            }"
        + "        ]"
        + "    }"
        + "}";

        String res28 = jedis.jsonSet("bikes:inventory", new Path2("$"), inventory_json);
        System.out.println(res28);  // >>> OK
            String inventory_json_str = "{" + "    \"inventory\": {" + "        \"mountain_bikes\": [" + "            {"
                    + "                \"id\": \"bike:1\"," + "                \"model\": \"Phoebe\","
                    + "                \"description\": \"This is a mid-travel trail slayer that is a "
                    + "fantastic daily driver or one bike quiver. The Shimano Claris 8-speed groupset "
                    + "gives plenty of gear range to tackle hills and there\u2019s room for mudguards "
                    + "and a rack too.  This is the bike for the rider who wants trail manners with " + "low fuss ownership.\","
                    + "                \"price\": 1920,"
                    + "                \"specs\": {\"material\": \"carbon\", \"weight\": 13.1},"
                    + "                \"colors\": [\"black\", \"silver\"]" + "            }," + "            {"
                    + "                \"id\": \"bike:2\"," + "                \"model\": \"Quaoar\","
                    + "                \"description\": \"Redesigned for the 2020 model year, this "
                    + "bike impressed our testers and is the best all-around trail bike we've ever "
                    + "tested. The Shimano gear system effectively does away with an external cassette, "
                    + "so is super low maintenance in terms of wear and tear. All in all it's an "
                    + "impressive package for the price, making it very competitive.\"," + "                \"price\": 2072,"
                    + "                \"specs\": {\"material\": \"aluminium\", \"weight\": 7.9},"
                    + "                \"colors\": [\"black\", \"white\"]" + "            }," + "            {"
                    + "                \"id\": \"bike:3\"," + "                \"model\": \"Weywot\","
                    + "                \"description\": \"This bike gives kids aged six years and older "
                    + "a durable and uberlight mountain bike for their first experience on tracks and easy "
                    + "cruising through forests and fields. A set of powerful Shimano hydraulic disc brakes "
                    + "provide ample stopping ability. If you're after a budget option, this is one of the "
                    + "best bikes you could get.\"," + "                \"price\": 3264,"
                    + "                \"specs\": {\"material\": \"alloy\", \"weight\": 13.8}" + "            }" + "        ],"
                    + "        \"commuter_bikes\": [" + "            {" + "                \"id\": \"bike:4\","
                    + "                \"model\": \"Salacia\","
                    + "                \"description\": \"This bike is a great option for anyone who just "
                    + "wants a bike to get about on With a slick-shifting Claris gears from Shimano\u2019s, "
                    + "this is a bike which doesn\u2019t break the bank and delivers craved performance.  "
                    + "It\u2019s for the rider who wants both efficiency and capability.\","
                    + "                \"price\": 1475,"
                    + "                \"specs\": {\"material\": \"aluminium\", \"weight\": 16.6},"
                    + "                \"colors\": [\"black\", \"silver\"]" + "            }," + "            {"
                    + "                \"id\": \"bike:5\"," + "                \"model\": \"Mimas\","
                    + "                \"description\": \"A real joy to ride, this bike got very high scores "
                    + "in last years Bike of the year report. The carefully crafted 50-34 tooth chainset "
                    + "and 11-32 tooth cassette give an easy-on-the-legs bottom gear for climbing, and the "
                    + "high-quality Vittoria Zaffiro tires give balance and grip.It includes a low-step "
                    + "frame , our memory foam seat, bump-resistant shocks and conveniently placed thumb "
                    + "throttle. Put it all together and you get a bike that helps redefine what can be "
                    + "done for this price.\"," + "                \"price\": 3941,"
                    + "                \"specs\": {\"material\": \"alloy\", \"weight\": 11.6}" + "            }" + "        ]"
                    + "    }" + "}";

            Charset charset = Charset.forName("UTF-8");
            ByteBuffer inventory_json = charset.encode(inventory_json_str);

            CompletableFuture<Void> setBikes = asyncCommands
                    .jsonSet("bikes:inventory", JsonPath.ROOT_PATH, parser.loadJsonValue(inventory_json))
                    .thenAccept(System.out::println) // >>> OK
                    .toCompletableFuture();
            String inventory_json_str = "{" + "    \"inventory\": {" + "        \"mountain_bikes\": [" + "            {"
                    + "                \"id\": \"bike:1\"," + "                \"model\": \"Phoebe\","
                    + "                \"description\": \"This is a mid-travel trail slayer that is a "
                    + "fantastic daily driver or one bike quiver. The Shimano Claris 8-speed groupset "
                    + "gives plenty of gear range to tackle hills and there\u2019s room for mudguards "
                    + "and a rack too.  This is the bike for the rider who wants trail manners with " + "low fuss ownership.\","
                    + "                \"price\": 1920,"
                    + "                \"specs\": {\"material\": \"carbon\", \"weight\": 13.1},"
                    + "                \"colors\": [\"black\", \"silver\"]" + "            }," + "            {"
                    + "                \"id\": \"bike:2\"," + "                \"model\": \"Quaoar\","
                    + "                \"description\": \"Redesigned for the 2020 model year, this "
                    + "bike impressed our testers and is the best all-around trail bike we've ever "
                    + "tested. The Shimano gear system effectively does away with an external cassette, "
                    + "so is super low maintenance in terms of wear and tear. All in all it's an "
                    + "impressive package for the price, making it very competitive.\"," + "                \"price\": 2072,"
                    + "                \"specs\": {\"material\": \"aluminium\", \"weight\": 7.9},"
                    + "                \"colors\": [\"black\", \"white\"]" + "            }," + "            {"
                    + "                \"id\": \"bike:3\"," + "                \"model\": \"Weywot\","
                    + "                \"description\": \"This bike gives kids aged six years and older "
                    + "a durable and uberlight mountain bike for their first experience on tracks and easy "
                    + "cruising through forests and fields. A set of powerful Shimano hydraulic disc brakes "
                    + "provide ample stopping ability. If you're after a budget option, this is one of the "
                    + "best bikes you could get.\"," + "                \"price\": 3264,"
                    + "                \"specs\": {\"material\": \"alloy\", \"weight\": 13.8}" + "            }" + "        ],"
                    + "        \"commuter_bikes\": [" + "            {" + "                \"id\": \"bike:4\","
                    + "                \"model\": \"Salacia\","
                    + "                \"description\": \"This bike is a great option for anyone who just "
                    + "wants a bike to get about on With a slick-shifting Claris gears from Shimano\u2019s, "
                    + "this is a bike which doesn\u2019t break the bank and delivers craved performance.  "
                    + "It\u2019s for the rider who wants both efficiency and capability.\","
                    + "                \"price\": 1475,"
                    + "                \"specs\": {\"material\": \"aluminium\", \"weight\": 16.6},"
                    + "                \"colors\": [\"black\", \"silver\"]" + "            }," + "            {"
                    + "                \"id\": \"bike:5\"," + "                \"model\": \"Mimas\","
                    + "                \"description\": \"A real joy to ride, this bike got very high scores "
                    + "in last years Bike of the year report. The carefully crafted 50-34 tooth chainset "
                    + "and 11-32 tooth cassette give an easy-on-the-legs bottom gear for climbing, and the "
                    + "high-quality Vittoria Zaffiro tires give balance and grip.It includes a low-step "
                    + "frame , our memory foam seat, bump-resistant shocks and conveniently placed thumb "
                    + "throttle. Put it all together and you get a bike that helps redefine what can be "
                    + "done for this price.\"," + "                \"price\": 3941,"
                    + "                \"specs\": {\"material\": \"alloy\", \"weight\": 11.6}" + "            }" + "        ]"
                    + "    }" + "}";

            Charset charset = Charset.forName("UTF-8");
            ByteBuffer inventory_json = charset.encode(inventory_json_str);

            Mono<Void> setBikes = reactiveCommands
                    .jsonSet("bikes:inventory", JsonPath.ROOT_PATH, parser.loadJsonValue(inventory_json))
                    .doOnNext(System.out::println) // >>> OK
                    .then();
	var inventory_json = map[string]interface{}{
		"inventory": map[string]interface{}{
			"mountain_bikes": []interface{}{
				map[string]interface{}{
					"id":    "bike:1",
					"model": "Phoebe",
					"description": "This is a mid-travel trail slayer that is a fantastic " +
						"daily driver or one bike quiver. The Shimano Claris 8-speed groupset " +
						"gives plenty of gear range to tackle hills and there\u2019s room for " +
						"mudguards and a rack too.  This is the bike for the rider who wants " +
						"trail manners with low fuss ownership.",
					"price":  1920,
					"specs":  map[string]interface{}{"material": "carbon", "weight": 13.1},
					"colors": []interface{}{"black", "silver"},
				},
				map[string]interface{}{
					"id":    "bike:2",
					"model": "Quaoar",
					"description": "Redesigned for the 2020 model year, this bike " +
						"impressed our testers and is the best all-around trail bike we've " +
						"ever tested. The Shimano gear system effectively does away with an " +
						"external cassette, so is super low maintenance in terms of wear " +
						"and tear. All in all it's an impressive package for the price, " +
						"making it very competitive.",
					"price":  2072,
					"specs":  map[string]interface{}{"material": "aluminium", "weight": 7.9},
					"colors": []interface{}{"black", "white"},
				},
				map[string]interface{}{
					"id":    "bike:3",
					"model": "Weywot",
					"description": "This bike gives kids aged six years and older " +
						"a durable and uberlight mountain bike for their first experience " +
						"on tracks and easy cruising through forests and fields. A set of " +
						"powerful Shimano hydraulic disc brakes provide ample stopping " +
						"ability. If you're after a budget option, this is one of the best " +
						"bikes you could get.",
					"price": 3264,
					"specs": map[string]interface{}{"material": "alloy", "weight": 13.8},
				},
			},
			"commuter_bikes": []interface{}{
				map[string]interface{}{
					"id":    "bike:4",
					"model": "Salacia",
					"description": "This bike is a great option for anyone who just " +
						"wants a bike to get about on With a slick-shifting Claris gears " +
						"from Shimano\u2019s, this is a bike which doesn\u2019t break the " +
						"bank and delivers craved performance.  It\u2019s for the rider " +
						"who wants both efficiency and capability.",
					"price":  1475,
					"specs":  map[string]interface{}{"material": "aluminium", "weight": 16.6},
					"colors": []interface{}{"black", "silver"},
				},
				map[string]interface{}{
					"id":    "bike:5",
					"model": "Mimas",
					"description": "A real joy to ride, this bike got very high " +
						"scores in last years Bike of the year report. The carefully " +
						"crafted 50-34 tooth chainset and 11-32 tooth cassette give an " +
						"easy-on-the-legs bottom gear for climbing, and the high-quality " +
						"Vittoria Zaffiro tires give balance and grip.It includes " +
						"a low-step frame , our memory foam seat, bump-resistant shocks and " +
						"conveniently placed thumb throttle. Put it all together and you " +
						"get a bike that helps redefine what can be done for this price.",
					"price": 3941,
					"specs": map[string]interface{}{"material": "alloy", "weight": 11.6},
				},
			},
		},
	}

	res1, err := rdb.JSONSet(ctx, "bikes:inventory", "$", inventory_json).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK
        string inventoryJson = @"
{
    ""inventory"": {
        ""mountain_bikes"": [
            {
                ""id"": ""bike:1"",
                ""model"": ""Phoebe"",
                ""description"": ""This is a mid-travel trail slayer that is a fantastic daily driver or one bike quiver. The Shimano Claris 8-speed groupset gives plenty of gear range to tackle hills and there\u2019s room for mudguards and a rack too.  This is the bike for the rider who wants trail manners with low fuss ownership."",
                ""price"": 1920,
                ""specs"": {""material"": ""carbon"", ""weight"": 13.1},
                ""colors"": [""black"", ""silver""]
            },
            {
                ""id"": ""bike:2"",
                ""model"": ""Quaoar"",
                ""description"": ""Redesigned for the 2020 model year, this bike impressed our testers and is the best all-around trail bike we've ever tested. The Shimano gear system effectively does away with an external cassette, so is super low maintenance in terms of wear and tear. All in all it's an impressive package for the price, making it very competitive."",
                ""price"": 2072,
                ""specs"": {""material"": ""aluminium"", ""weight"": 7.9},
                ""colors"": [""black"", ""white""]
            },
            {
                ""id"": ""bike:3"",
                ""model"": ""Weywot"",
                ""description"": ""This bike gives kids aged six years and older a durable and uberlight mountain bike for their first experience on tracks and easy cruising through forests and fields. A set of powerful Shimano hydraulic disc brakes provide ample stopping ability. If you're after a budget option, this is one of the best bikes you could get."",
                ""price"": 3264,
                ""specs"": {""material"": ""alloy"", ""weight"": 13.8}
            }
        ],
        ""commuter_bikes"": [
            {
                ""id"": ""bike:4"",
                ""model"": ""Salacia"",
                ""description"": ""This bike is a great option for anyone who just wants a bike to get about on With a slick-shifting Claris gears from Shimano\u2019s, this is a bike which doesn\u2019t break the bank and delivers craved performance.  It\u2019s for the rider who wants both efficiency and capability."",
                ""price"": 1475,
                ""specs"": {""material"": ""aluminium"", ""weight"": 16.6},
                ""colors"": [""black"", ""silver""]
            },
            {
                ""id"": ""bike:5"",
                ""model"": ""Mimas"",
                ""description"": ""A real joy to ride, this bike got very high scores in last years Bike of the year report. The carefully crafted 50-34 tooth chainset and 11-32 tooth cassette give an easy-on-the-legs bottom gear for climbing, and the high-quality Vittoria Zaffiro tires give balance and grip.It includes a low-step frame , our memory foam seat, bump-resistant shocks and conveniently placed thumb throttle. Put it all together and you get a bike that helps redefine what can be done for this price."",
                ""price"": 3941,
                ""specs"": {""material"": ""alloy"", ""weight"": 11.6}
            }
        ]
    }
}";

        bool res28 = db.JSON().Set("bikes:inventory", "$", inventoryJson);
        Console.WriteLine(res28);   // >>> True
        $inventory = [
            'inventory' => [
                'mountain_bikes' => [
                    [
                        'id' => 'bike:1',
                        'model' => 'Phoebe',
                        'description' => 'This is a mid-travel trail slayer that is a fantastic daily driver or one bike quiver. The Shimano Claris 8-speed groupset gives plenty of gear range to tackle hills and there’s room for mudguards and a rack too.  This is the bike for the rider who wants trail manners with low fuss ownership.',
                        'price' => 1920,
                        'specs' => ['material' => 'carbon', 'weight' => 13.1],
                        'colors' => ['black', 'silver'],
                    ],
                    [
                        'id' => 'bike:2',
                        'model' => 'Quaoar',
                        'description' => "Redesigned for the 2020 model year, this bike impressed our testers and is the best all-around trail bike we've ever tested. The Shimano gear system effectively does away with an external cassette, so is super low maintenance in terms of wear and tear. All in all it's an impressive package for the price, making it very competitive.",
                        'price' => 2072,
                        'specs' => ['material' => 'aluminium', 'weight' => 7.9],
                        'colors' => ['black', 'white'],
                    ],
                    [
                        'id' => 'bike:3',
                        'model' => 'Weywot',
                        'description' => 'This bike gives kids aged six years and older a durable and uberlight mountain bike for their first experience on tracks and easy cruising through forests and fields. A set of powerful Shimano hydraulic disc brakes provide ample stopping ability. If you\'re after a budget option, this is one of the best bikes you could get.',
                        'price' => 3264,
                        'specs' => ['material' => 'alloy', 'weight' => 13.8],
                    ],
                ],
                'commuter_bikes' => [
                    [
                        'id' => 'bike:4',
                        'model' => 'Salacia',
                        'description' => 'This bike is a great option for anyone who just wants a bike to get about on With a slick-shifting Claris gears from Shimano’s, this is a bike which doesn’t break the bank and delivers craved performance.  It’s for the rider who wants both efficiency and capability.',
                        'price' => 1475,
                        'specs' => ['material' => 'aluminium', 'weight' => 16.6],
                        'colors' => ['black', 'silver'],
                    ],
                    [
                        'id' => 'bike:5',
                        'model' => 'Mimas',
                        'description' => 'A real joy to ride, this bike got very high scores in last years Bike of the year report. The carefully crafted 50-34 tooth chainset and 11-32 tooth cassette give an easy-on-the-legs bottom gear for climbing, and the high-quality Vittoria Zaffiro tires give balance and grip.It includes a low-step frame , our memory foam seat, bump-resistant shocks and conveniently placed thumb throttle. Put it all together and you get a bike that helps redefine what can be done for this price.',
                        'price' => 3941,
                        'specs' => ['material' => 'alloy', 'weight' => 11.6],
                    ],
                ],
            ],
        ];
        $res1b = $r->jsonset('bikes:inventory', '$', json_encode($inventory, JSON_THROW_ON_ERROR));
        echo $res1b . PHP_EOL;
        // >>> OK
inventory_json = {
  'inventory' => {
    'mountain_bikes' => [
      {
        'id' => 'bike:1',
        'model' => 'Phoebe',
        'description' => 'This is a mid-travel trail slayer that is a fantastic ' \
          'daily driver or one bike quiver. The Shimano Claris 8-speed groupset ' \
          'gives plenty of gear range to tackle hills and there’s room for ' \
          'mudguards and a rack too.  This is the bike for the rider who wants ' \
          'trail manners with low fuss ownership.',
        'price' => 1920,
        'specs' => { 'material' => 'carbon', 'weight' => 13.1 },
        'colors' => %w[black silver]
      },
      {
        'id' => 'bike:2',
        'model' => 'Quaoar',
        'description' => 'Redesigned for the 2020 model year, this bike ' \
          "impressed our testers and is the best all-around trail bike we've " \
          'ever tested. The Shimano gear system effectively does away with an ' \
          'external cassette, so is super low maintenance in terms of wear ' \
          "and tear. All in all it's an impressive package for the price, " \
          'making it very competitive.',
        'price' => 2072,
        'specs' => { 'material' => 'aluminium', 'weight' => 7.9 },
        'colors' => %w[black white]
      },
      {
        'id' => 'bike:3',
        'model' => 'Weywot',
        'description' => 'This bike gives kids aged six years and older ' \
          'a durable and uberlight mountain bike for their first experience ' \
          'on tracks and easy cruising through forests and fields. A set of ' \
          'powerful Shimano hydraulic disc brakes provide ample stopping ' \
          "ability. If you're after a budget option, this is one of the best " \
          'bikes you could get.',
        'price' => 3264,
        'specs' => { 'material' => 'alloy', 'weight' => 13.8 }
      }
    ],
    'commuter_bikes' => [
      {
        'id' => 'bike:4',
        'model' => 'Salacia',
        'description' => 'This bike is a great option for anyone who just ' \
          'wants a bike to get about on With a slick-shifting Claris gears ' \
          'from Shimano’s, this is a bike which doesn’t break the ' \
          "bank and delivers craved performance.  It's for the rider " \
          'who wants both efficiency and capability.',
        'price' => 1475,
        'specs' => { 'material' => 'aluminium', 'weight' => 16.6 },
        'colors' => %w[black silver]
      },
      {
        'id' => 'bike:5',
        'model' => 'Mimas',
        'description' => 'A real joy to ride, this bike got very high ' \
          'scores in last years Bike of the year report. The carefully ' \
          'crafted 50-34 tooth chainset and 11-32 tooth cassette give an ' \
          'easy-on-the-legs bottom gear for climbing, and the high-quality ' \
          'Vittoria Zaffiro tires give balance and grip.It includes ' \
          'a low-step frame , our memory foam seat, bump-resistant shocks and ' \
          'conveniently placed thumb throttle. Put it all together and you ' \
          'get a bike that helps redefine what can be done for this price.',
        'price' => 3941,
        'specs' => { 'material' => 'alloy', 'weight' => 11.6 }
      }
    ]
  }
}

res1 = r.json_set('bikes:inventory', '$', inventory_json)
puts res1 # >>> OK
        let res29: bool = r
            .json_set("bikes:inventory", "$", &inventory_json())
            .expect("Failed to run JSON.SET");
        print_set_result(res29); // >>> OK
        let res29: bool = r
            .json_set("bikes:inventory", "$", &inventory_json())
            .await
            .expect("Failed to run JSON.SET");
        print_set_result(res29); // >>> OK

Access examples

The following examples use the JSON.GET command to retrieve data from various paths in the JSON document.

You can use the wildcard operator * to return a list of all items in the inventory:

Wildcard queries: Use the * operator to retrieve all items in a collection when you need to access all elements at a specific level
> JSON.GET bikes:inventory $.inventory.*
"[[{\"id\":\"bike:1\",\"model\":\"Phoebe\",\"description\":\"This is a mid-travel trail slayer that is a fantastic daily driver or one bike quiver. The Shimano Claris 8-speed groupset gives plenty of gear range to tackle hills and there's room for mudguards and a rack too. This is the bike for the rider who wants trail manners with low fuss ownership.\",\"price\":1920,\"specs\":{\"material\":\"carbon\",\"weight\":13.1},\"colors\":[\"black\",\"silver\"]},{\"id\":\"bike:2\",\"model\":\"Quaoar\",\"description\":\"Redesigned for the 2020 model year, this bike impressed our testers and is the best all-around trail bike we've ever tested. The Shimano gear system effectively does away with an external cassette, so is super low maintenance in terms of wear and tear. All in all it's an impressive package for the price, making it very competitive.\",\"price\":2072,\"specs\":{\"material\":\"aluminium\",\"weight\":7.9},\"colors\":[\"black\",\"white\"]},{\"id\":\"bike:3\",\"model\":\"Weywot\",\"description\":\"This bike gives kids aged six years and older a durable and uberlight mountain bike for their first experience on tracks and easy cruising through forests and fields. A set of powerful Shimano hydraulic disc brakes provide ample stopping ability. If you're after a budget option, this is one of the best bikes you could get.\",\"price\":3264,\"specs\":{\"material\":\"alloy\",\"weight\":13.8}}],[{\"id\":\"bike:4\",\"model\":\"Salacia\",\"description\":\"This bike is a great option for anyone who just wants a bike to get about on With a slick-shifting Claris gears from Shimano's, this is a bike which doesn't break the bank and delivers craved performance. It's for the rider who wants both efficiency and capability.\",\"price\":1475,\"specs\":{\"material\":\"aluminium\",\"weight\":16.6},\"colors\":[\"black\",\"silver\"]},{\"id\":\"bike:5\",\"model\":\"Mimas\",\"description\":\"A real joy to ride, this bike got very high scores in last years Bike of the year report. The carefully crafted 50-34 tooth chainset and 11-32 tooth cassette give an easy-on-the-legs bottom gear for climbing, and the high-quality Vittoria Zaffiro tires give balance and grip.It includes a low-step frame , our memory foam seat, bump-resistant shocks and conveniently placed thumb throttle. Put it all together and you get a bike that helps redefine what can be done for this price.\",\"price\":3941,\"specs\":{\"material\":\"alloy\",\"weight\":11.6}}]]"
res2 = r.json().get("bikes:inventory", "$.inventory.*")
print(res2)
# >>>    [[{'id': 'bike:1', 'model': 'Phoebe',
# >>>       'description': 'This is a mid-travel trail slayer...
const res29 = await client.json.get("bikes:inventory", {
  path: "$.inventory.*"
});
console.log(res29);
/*
[
  [
    {
      id: 'bike:1',
      model: 'Phoebe',
      description: 'This is a mid-travel trail slayer that is a fantastic daily driver or one bike quiver. The Shimano Claris 8-speed groupset gives plenty of gear range to tackle hills and there’s room for mudguards and a rack too.  This is the bike for the rider who wants trail manners with low fuss ownership.',
      price: 1920,
      specs: [Object],
      colors: [Array]
    },
    {
      id: 'bike:2',
      model: 'Quaoar',
      description: "Redesigned for the 2020 model year, this bike impressed our testers and is the best all-around trail bike we've ever tested. The Shimano gear system effectively does away with an external cassette, so is super low maintenance in terms of wear and teaawait client. All in all it's an impressive package for the price, making it very competitive.",
      price: 2072,
      specs: [Object],
      colors: [Array]
    },
    {
      id: 'bike:3',
      model: 'Weywot',
      description: "This bike gives kids aged six years and older a durable and uberlight mountain bike for their first experience on tracks and easy cruising through forests and fields. A set of powerful Shimano hydraulic disc brakes provide ample stopping ability. If you're after a budget option, this is one of the best bikes you could get.",
      price: 3264,
      specs: [Object]
    }
  ],
  [
    {
      id: 'bike:4',
      model: 'Salacia',
      description: 'This bike is a great option for anyone who just wants a bike to get about on With a slick-shifting Claris gears from Shimano’s, this is a bike which doesn’t break the bank and delivers craved performance.  It’s for the rider who wants both efficiency and capability.',
      price: 1475,
      specs: [Object],
      colors: [Array]
    },
    {
      id: 'bike:5',
      model: 'Mimas',
      description: 'A real joy to ride, this bike got very high scores in last years Bike of the year report. The carefully crafted 50-34 tooth chainset and 11-32 tooth cassette give an easy-on-the-legs bottom gear for climbing, and the high-quality Vittoria Zaffiro tires give balance and grip.It includes a low-step frame , our memory foam seat, bump-resistant shocks and conveniently placed thumb throttle. Put it all together and you get a bike that helps redefine what can be done for this price.',
      price: 3941,
      specs: [Object]
    }
  ]
]
*/
        Object res29 = jedis.jsonGet("bikes:inventory", new Path2("$.inventory.*"));
        System.out.println(res29);
        // >>> [[{"specs":{"material":"carbon","weight":13.1},"price":1920, ...
            CompletableFuture<Void> getBikes = asyncCommands.jsonGet("bikes:inventory", JsonPath.of("$.inventory.*"))
                    .thenAccept(System.out::println)
                    // >>> [[[{"id":"bike:1","model":"Phoebe",...
                    .toCompletableFuture();
            Mono<Void> getBikes = reactiveCommands.jsonGet("bikes:inventory", JsonPath.of("$.inventory.*")).collectList()
                    .doOnNext(System.out::println) // >>> [[[{"id":"bike:1","model":"Phoebe",...
                    .then();
	res2, err := rdb.JSONGetWithArgs(ctx, "bikes:inventory",
		&redis.JSONGetArgs{Indent: "  ", Newline: "\n", Space: " "},
		"$.inventory.*",
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2)
	// >>>
	// [
	//   [
	//     {
	//       "colors": [
	//         "black",
	//         "silver"
	// ...
        RedisResult res29 = db.JSON().Get("bikes:inventory", path: "$.inventory.*");
        Console.WriteLine(res29);   // >>> {[[{"id":"bike:1","model":"Phoebe", ...
        $res2b = $r->jsonget('bikes:inventory', '', '', '', '$.inventory.*');
        echo $res2b . PHP_EOL;
        // >>> [{'id': 'bike:1', 'model': 'Phoebe',
res2 = r.json_get('bikes:inventory', '$.inventory.*')
p res2
# >>> [[{"id"=>"bike:1", "model"=>"Phoebe",
# >>>    "description"=>"This is a mid-travel trail slayer...
        let res30: String = r
            .json_get("bikes:inventory", "$.inventory.*")
            .expect("Failed to run JSON.GET");
        println!("{res30}");
        // >>> [[{"id":"bike:1","model":"Phoebe","description":"This is a mid-travel trail slayer...
        let res30: String = r
            .json_get("bikes:inventory", "$.inventory.*")
            .await
            .expect("Failed to run JSON.GET");
        println!("{res30}");
        // >>> [[{"id":"bike:1","model":"Phoebe","description":"This is a mid-travel trail slayer...

For some queries, multiple paths can produce the same results. For example, the following paths return the names of all mountain bikes:

Array element access: Use bracket notation and array subscripts to access specific array elements or all elements with [*] when you need to retrieve values from arrays
> JSON.GET bikes:inventory $.inventory.mountain_bikes[*].model
"[\"Phoebe\",\"Quaoar\",\"Weywot\"]"
> JSON.GET bikes:inventory '$.inventory["mountain_bikes"][*].model'
"[\"Phoebe\",\"Quaoar\",\"Weywot\"]"
> JSON.GET bikes:inventory '$..mountain_bikes[*].model'
"[\"Phoebe\",\"Quaoar\",\"Weywot\"]"
res3 = r.json().get("bikes:inventory", "$.inventory.mountain_bikes[*].model")
print(res3)  # >>> [['Phoebe', 'Quaoar', 'Weywot']]

res4 = r.json().get("bikes:inventory", '$.inventory["mountain_bikes"][*].model')
print(res4)  # >>> [['Phoebe', 'Quaoar', 'Weywot']]

res5 = r.json().get("bikes:inventory", "$..mountain_bikes[*].model")
print(res5)  # >>> [['Phoebe', 'Quaoar', 'Weywot']]
const res30 = await client.json.get("bikes:inventory", {
  path: "$.inventory.mountain_bikes[*].model"
});
console.log(res30); //  ['Phoebe', 'Quaoar', 'Weywot']

const res31 = await client.json.get("bikes:inventory", {
  path: '$.inventory["mountain_bikes"][*].model'
});
console.log(res31); //  ['Phoebe', 'Quaoar', 'Weywot']

const res32 = await client.json.get("bikes:inventory", {
  path: "$..mountain_bikes[*].model"
});
console.log(res32); //  ['Phoebe', 'Quaoar', 'Weywot']
        Object res30 = jedis.jsonGet(
            "bikes:inventory", new Path2("$.inventory.mountain_bikes[*].model")
        );
        System.out.println(res30);  // >>> ["Phoebe","Quaoar","Weywot"]

        Object res31 = jedis.jsonGet(
            "bikes:inventory", new Path2("$.inventory[\"mountain_bikes\"][*].model")
        );
        System.out.println(res31);  // >>> ["Phoebe","Quaoar","Weywot"]

        Object res32 = jedis.jsonGet(
            "bikes:inventory", new Path2("$..mountain_bikes[*].model")
        );
        System.out.println(res32);  // >>> ["Phoebe","Quaoar","Weywot"]
            CompletableFuture<Void> getMtnBikes = asyncCommands
                    .jsonGet("bikes:inventory", JsonPath.of("$.inventory.mountain_bikes[*].model")).thenCompose(res19 -> {
                        System.out.println(res19); // >>> [["Phoebe","Quaoar","Weywot"]]
                        return asyncCommands.jsonGet("bikes:inventory",
                                JsonPath.of("$.inventory[\"mountain_bikes\"][*].model"));
                    }).thenCompose(res20 -> {
                        System.out.println(res20); // >>> [["Phoebe","Quaoar","Weywot"]]
                        return asyncCommands.jsonGet("bikes:inventory", JsonPath.of("$..mountain_bikes[*].model"));
                    })
                    .thenAccept(System.out::println)
                    // >>> [["Phoebe","Quaoar","Weywot"]]
                    .toCompletableFuture();
            Mono<Void> getMtnBikes = reactiveCommands
                    .jsonGet("bikes:inventory", JsonPath.of("$.inventory.mountain_bikes[*].model")).collectList()
                    .doOnNext(res19 -> {
                        System.out.println(res19); // >>> [["Phoebe","Quaoar","Weywot"]]
                    })
                    .flatMap(res19 -> reactiveCommands
                            .jsonGet("bikes:inventory", JsonPath.of("$.inventory[\"mountain_bikes\"][*].model")).collectList())
                    .doOnNext(res20 -> {
                        System.out.println(res20); // >>> [["Phoebe","Quaoar","Weywot"]]
                    })
                    .flatMap(res20 -> reactiveCommands.jsonGet("bikes:inventory", JsonPath.of("$..mountain_bikes[*].model"))
                            .collectList())
                    .doOnNext(System.out::println) // >>> [["Phoebe","Quaoar","Weywot"]]
                    .then();
	res3, err := rdb.JSONGet(ctx, "bikes:inventory",
		"$.inventory.mountain_bikes[*].model",
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res3)
	// >>> ["Phoebe","Quaoar","Weywot"]

	res4, err := rdb.JSONGet(ctx,
		"bikes:inventory", "$.inventory[\"mountain_bikes\"][*].model",
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res4)
	// >>> ["Phoebe","Quaoar","Weywot"]

	res5, err := rdb.JSONGet(ctx,
		"bikes:inventory", "$..mountain_bikes[*].model",
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res5)
	// >>> ["Phoebe","Quaoar","Weywot"]
        RedisResult res30 = db.JSON().Get("bikes:inventory", path: "$.inventory.mountain_bikes[*].model");
        Console.WriteLine(res30);   // >>> ["Phoebe","Quaoar","Weywot"]

        RedisResult res31 = db.JSON().Get("bikes:inventory", path: "$.inventory[\"mountain_bikes\"][*].model");
        Console.WriteLine(res31);   // >>> ["Phoebe","Quaoar","Weywot"]

        RedisResult res32 = db.JSON().Get("bikes:inventory", path: "$..mountain_bikes[*].model");
        Console.WriteLine(res32);   // >>> ["Phoebe","Quaoar","Weywot"]
        $res3b = $r->jsonget('bikes:inventory', '', '', '', '$.inventory.mountain_bikes[*].model');
        echo $res3b . PHP_EOL;
        // >>> ["Phoebe","Quaoar","Weywot"]

        $res4b = $r->jsonget('bikes:inventory', '', '', '', '$.inventory["mountain_bikes"][*].model');
        echo $res4b . PHP_EOL;
        // >>> ["Phoebe","Quaoar","Weywot"]

        $res5b = $r->jsonget('bikes:inventory', '', '', '', '$..mountain_bikes[*].model');
        echo $res5b . PHP_EOL;
        // >>> ["Phoebe","Quaoar","Weywot"]
res3 = r.json_get('bikes:inventory', '$.inventory.mountain_bikes[*].model')
p res3 # >>> ["Phoebe", "Quaoar", "Weywot"]

res4 = r.json_get('bikes:inventory', '$.inventory["mountain_bikes"][*].model')
p res4 # >>> ["Phoebe", "Quaoar", "Weywot"]

res5 = r.json_get('bikes:inventory', '$..mountain_bikes[*].model')
p res5 # >>> ["Phoebe", "Quaoar", "Weywot"]
        let res31: String = r
            .json_get("bikes:inventory", "$.inventory.mountain_bikes[*].model")
            .expect("Failed to run JSON.GET");
        println!("{res31}"); // >>> [["Phoebe","Quaoar","Weywot"]]

        let res32: String = r
            .json_get(
                "bikes:inventory",
                r#"$.inventory["mountain_bikes"][*].model"#,
            )
            .expect("Failed to run JSON.GET");
        println!("{res32}"); // >>> [["Phoebe","Quaoar","Weywot"]]

        let res33: String = r
            .json_get("bikes:inventory", "$..mountain_bikes[*].model")
            .expect("Failed to run JSON.GET");
        println!("{res33}"); // >>> [["Phoebe","Quaoar","Weywot"]]
        let res31: String = r
            .json_get("bikes:inventory", "$.inventory.mountain_bikes[*].model")
            .await
            .expect("Failed to run JSON.GET");
        println!("{res31}"); // >>> [["Phoebe","Quaoar","Weywot"]]

        let res32: String = r
            .json_get(
                "bikes:inventory",
                r#"$.inventory["mountain_bikes"][*].model"#,
            )
            .await
            .expect("Failed to run JSON.GET");
        println!("{res32}"); // >>> [["Phoebe","Quaoar","Weywot"]]

        let res33: String = r
            .json_get("bikes:inventory", "$..mountain_bikes[*].model")
            .await
            .expect("Failed to run JSON.GET");
        println!("{res33}"); // >>> [["Phoebe","Quaoar","Weywot"]]

The recursive descent operator .. can retrieve a field from multiple sections of a JSON document. The following example returns the names of all inventory items:

Recursive descent: Use the .. operator to search for a field at any depth in the JSON document when you need to find values across multiple nesting levels
> JSON.GET bikes:inventory $..model
"[\"Phoebe\",\"Quaoar\",\"Weywot\",\"Salacia\",\"Mimas\"]"
res6 = r.json().get("bikes:inventory", "$..model")
print(res6)  # >>> [['Phoebe', 'Quaoar', 'Weywot', 'Salacia', 'Mimas']]
const res33 = await client.json.get("bikes:inventory", {
  path: "$..model"
});
console.log(res33); //  ['Phoebe', 'Quaoar', 'Weywot', 'Salacia', 'Mimas']
        Object res33 = jedis.jsonGet("bikes:inventory", new Path2("$..model"));
        System.out.println(res33);
        // >>> ["Phoebe","Quaoar","Weywot","Salacia","Mimas"]
            CompletableFuture<Void> getModels = asyncCommands.jsonGet("bikes:inventory", JsonPath.of("$..model"))
                    .thenAccept(System.out::println)
                    // >>> [["Phoebe","Quaoar","Weywot","Salacia","Mimas"]]
                    .toCompletableFuture();
            Mono<Void> getModels = reactiveCommands.jsonGet("bikes:inventory", JsonPath.of("$..model")).collectList()
                    .doOnNext(System.out::println) // >>> [["Phoebe","Quaoar","Weywot","Salacia","Mimas"]]
                    .then();
	res6, err := rdb.JSONGet(ctx, "bikes:inventory", "$..model").Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res6) // >>> ["Salacia","Mimas","Phoebe","Quaoar","Weywot"]
        RedisResult res33 = db.JSON().Get("bikes:inventory", path: "$..model");
        Console.WriteLine(res33);   // >>> ["Phoebe","Quaoar","Weywot","Salacia","Mimas"]
        $res6b = $r->jsonget('bikes:inventory', '', '', '', '$..model');
        echo $res6b . PHP_EOL;
        // >>> ["Phoebe","Quaoar","Weywot","Salacia","Mimas"]
res6 = r.json_get('bikes:inventory', '$..model')
p res6 # >>> ["Phoebe", "Quaoar", "Weywot", "Salacia", "Mimas"]
        let res34: String = r
            .json_get("bikes:inventory", "$..model")
            .expect("Failed to run JSON.GET");
        println!("{res34}"); // >>> [["Phoebe","Quaoar","Weywot","Salacia","Mimas"]]
        let res34: String = r
            .json_get("bikes:inventory", "$..model")
            .await
            .expect("Failed to run JSON.GET");
        println!("{res34}"); // >>> [["Phoebe","Quaoar","Weywot","Salacia","Mimas"]]

You can use an array slice to select a range of elements from an array. This example returns the names of the first 2 mountain bikes:

Array slicing: Use [start:end] syntax to select a range of array elements when you need to retrieve a subset of items from an array
> JSON.GET bikes:inventory $..mountain_bikes[0:2].model
"[\"Phoebe\",\"Quaoar\"]"
res7 = r.json().get("bikes:inventory", "$..mountain_bikes[0:2].model")
print(res7)  # >>> [['Phoebe', 'Quaoar']]
const res34 = await client.json.get("bikes:inventory", {
  path: "$..mountain_bikes[0:2].model"
});
console.log(res34); //  ['Phoebe', 'Quaoar']
        Object res34 = jedis.jsonGet(
            "bikes:inventory", new Path2("$..mountain_bikes[0:2].model")
        );
        System.out.println(res34);  // >>> ["Phoebe","Quaoar"]
            CompletableFuture<Void> get2MtnBikes = asyncCommands
                    .jsonGet("bikes:inventory", JsonPath.of("$..mountain_bikes[0:2].model"))
                    .thenAccept(System.out::println)
                    // >>> [["Phoebe","Quaoar"]]
                    .toCompletableFuture();
            Mono<Void> get2MtnBikes = reactiveCommands.jsonGet("bikes:inventory", JsonPath.of("$..mountain_bikes[0:2].model"))
                    .collectList()
                    .doOnNext(System.out::println) // >>> [["Phoebe","Quaoar"]]
                    .then();
	res7, err := rdb.JSONGet(ctx, "bikes:inventory", "$..mountain_bikes[0:2].model").Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res7) // >>> ["Phoebe","Quaoar"]
        RedisResult res34 = db.JSON().Get("bikes:inventory", path: "$..mountain_bikes[0:2].model");
        Console.WriteLine(res34);   // >>> ["Phoebe","Quaoar"]
        $res7b = $r->jsonget('bikes:inventory', '', '', '', '$..mountain_bikes[0:2].model');
        echo $res7b . PHP_EOL;
        // >>> ["Phoebe","Quaoar"]
res7 = r.json_get('bikes:inventory', '$..mountain_bikes[0:2].model')
p res7 # >>> ["Phoebe", "Quaoar"]
        let res35: String = r
            .json_get("bikes:inventory", "$..mountain_bikes[0:2].model")
            .expect("Failed to run JSON.GET");
        println!("{res35}"); // >>> [["Phoebe","Quaoar"]]
        let res35: String = r
            .json_get("bikes:inventory", "$..mountain_bikes[0:2].model")
            .await
            .expect("Failed to run JSON.GET");
        println!("{res35}"); // >>> [["Phoebe","Quaoar"]]

Filter expressions ?() let you select JSON elements based on certain conditions. You can use comparison operators (==, !=, <, <=, >, >=, and starting with version v2.4.2, also =~), logical operators (&&, ||), and parenthesis ((, )) within these expressions. A filter expression can be applied on an array or on an object, iterating over all the elements in the array or all the values in the object, retrieving only the ones that match the filter condition.

Paths within the filter condition use the dot notation with either @ to denote the current array element or the current object value, or $ to denote the top-level element. For example, use @.key_name to refer to a nested value and $.top_level_key_name to refer to a top-level value.

From version v2.4.2 onward, you can use the comparison operator =~ to match a path of a string value on the left side against a regular expression pattern on the right side. For more information, see the supported regular expression syntax docs.

Non-string values do not match. A match can only occur when the left side is a path of a string value and the right side is either a hard-coded string, or a path of a string value. See examples below.

The regex match is partial, meaning a regex pattern like "foo" matches a string such as "barefoots". To make the match exact, use the regex pattern "^foo$".

Other JSONPath engines may use regex patterns between slashes (for example, /foo/), and their match is exact. They can perform partial matches using a regex pattern such as /.*foo.*/.

Filter examples

In the following example, the filter only returns mountain bikes with a price less than 3000 and a weight less than 10:

Filter expressions: Use ?() with comparison and logical operators to select elements matching specific conditions when you need to query based on multiple criteria
> JSON.GET bikes:inventory '$..mountain_bikes[?(@.price < 3000 && @.specs.weight < 10)]'
"[{\"id\":\"bike:2\",\"model\":\"Quaoar\",\"description\":\"Redesigned for the 2020 model year, this bike impressed our testers and is the best all-around trail bike we've ever tested. The Shimano gear system effectively does away with an external cassette, so is super low maintenance in terms of wear and tear. All in all it's an impressive package for the price, making it very competitive.\",\"price\":2072,\"specs\":{\"material\":\"aluminium\",\"weight\":7.9},\"colors\":[\"black\",\"white\"]}]"
res8 = r.json().get(
    "bikes:inventory",
    "$..mountain_bikes[?(@.price < 3000 && @.specs.weight < 10)]",
)
print(res8)
# >>> [{'id': 'bike:2', 'model': 'Quaoar',
#           'description': "Redesigned for the 2020 model year...
const res35 = await client.json.get("bikes:inventory", {
  path: "$..mountain_bikes[?(@.price < 3000 && @.specs.weight < 10)]"
});
console.log(res35);
/*
[
  {
    id: 'bike:2',
    model: 'Quaoar',
    description: "Redesigned for the 2020 model year, this bike impressed our testers and is the best all-around trail bike we've ever tested. The Shimano gear system effectively does away with an external cassette, so is super low maintenance in terms of wear and teaawait client. All in all it's an impressive package for the price, making it very competitive.",
    price: 2072,
    specs: { material: 'aluminium', weight: 7.9 },
    colors: [ 'black', 'white' ]
  }
]
*/
        Object res35 = jedis.jsonGet(
            "bikes:inventory",
            new Path2("$..mountain_bikes[?(@.price < 3000 && @.specs.weight < 10)]")
        );
        System.out.println(res35);
        // >>> [{"specs":{"material":"aluminium","weight":7.9},"price":2072,...
            CompletableFuture<Void> filter1 = asyncCommands
                    .jsonGet("bikes:inventory", JsonPath.of("$..mountain_bikes[?(@.price < 3000 && @.specs.weight < 10)]"))
                    .thenAccept(System.out::println)
                    // >>> [[{"id":"bike:2","model":"Quaoar","description":...
                    .toCompletableFuture();
            Mono<Void> filter1 = reactiveCommands
                    .jsonGet("bikes:inventory", JsonPath.of("$..mountain_bikes[?(@.price < 3000 && @.specs.weight < 10)]"))
                    .collectList()
                    .doOnNext(System.out::println) // >>> [[{"id":"bike:2","model":"Quaoar","description":...
                    .then();
	res8, err := rdb.JSONGetWithArgs(ctx, "bikes:inventory",
		&redis.JSONGetArgs{Indent: "  ", Newline: "\n", Space: " "},
		"$..mountain_bikes[?(@.price < 3000 && @.specs.weight < 10)]",
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res8)
	// >>>
	// [
	//   {
	//     "colors": [
	//       "black",
	//       "white"
	//     ],
	//     "description": "Redesigned for the 2020 model year
	// ...
        RedisResult res35 = db.JSON().Get(
            "bikes:inventory",
            path: "$..mountain_bikes[?(@.price < 3000 && @.specs.weight < 10)]"
        );
        Console.WriteLine(res35);
        // >>> [{"id":"bike:2","model":"Quaoar","description":"Redesigned for the 2020 model year...
        $res8b = $r->jsonget(
            'bikes:inventory',
            '',
            '',
            '',
            '$..mountain_bikes[?(@.price < 3000 && @.specs.weight < 10)]'
        );
        echo $res8b . PHP_EOL;
        // >>> [{"id":"bike:2","model":"Quaoar",...}]
res8 = r.json_get(
  'bikes:inventory',
  '$..mountain_bikes[?(@.price < 3000 && @.specs.weight < 10)]'
)
p res8
# >>> [{"id"=>"bike:2", "model"=>"Quaoar",
# >>>   "description"=>"Redesigned for the 2020 model year...
        let res36: String = r
            .json_get(
                "bikes:inventory",
                "$..mountain_bikes[?(@.price < 3000 && @.specs.weight < 10)]",
            )
            .expect("Failed to run JSON.GET");
        println!("{res36}");
        // >>> [[{"id":"bike:2","model":"Quaoar","description":"Redesigned for the 2020 model year...
        let res36: String = r
            .json_get(
                "bikes:inventory",
                "$..mountain_bikes[?(@.price < 3000 && @.specs.weight < 10)]",
            )
            .await
            .expect("Failed to run JSON.GET");
        println!("{res36}");
        // >>> [[{"id":"bike:2","model":"Quaoar","description":"Redesigned for the 2020 model year...

This example filters the inventory for the model names of bikes made from alloy:

Equality filters: Use == operator in filter expressions to select elements with specific field values when you need to find items matching exact criteria
> JSON.GET bikes:inventory '$..[?(@.specs.material == "alloy")].model'
"[\"Weywot\",\"Mimas\"]"
res9 = r.json().get("bikes:inventory", "$..[?(@.specs.material == 'alloy')].model")
print(res9)  # >>> ['Weywot', 'Mimas']
//  names of bikes made from an alloy
const res36 = await client.json.get("bikes:inventory", {
  path: "$..[?(@.specs.material == 'alloy')].model"
});
console.log(res36); //  ['Weywot', 'Mimas']
        Object res36 = jedis.jsonGet(
            "bikes:inventory", new Path2("$..[?(@.specs.material == 'alloy')].model")
        );
        System.out.println(res36);  // >>> ["Weywot","Mimas"]
            CompletableFuture<Void> filter2 = asyncCommands
                    .jsonGet("bikes:inventory", JsonPath.of("$..[?(@.specs.material == 'alloy')].model"))
                    .thenAccept(System.out::println)
                    // >>> [["Weywot","Mimas"]]
                    .toCompletableFuture();
            Mono<Void> filter2 = reactiveCommands
                    .jsonGet("bikes:inventory", JsonPath.of("$..[?(@.specs.material == 'alloy')].model")).collectList()
                    .doOnNext(System.out::println) // >>> [["Weywot","Mimas"]]
                    .then();
	res9, err := rdb.JSONGet(ctx,
		"bikes:inventory",
		"$..[?(@.specs.material == 'alloy')].model",
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res9) // >>> ["Mimas","Weywot"]
        RedisResult res36 = db.JSON().Get(
            "bikes:inventory",
            path: "$..[?(@.specs.material == 'alloy')].model"
        );
        Console.WriteLine(res36);   // >>> ["Weywot","Mimas"]
        $res9b = $r->jsonget('bikes:inventory', '', '', '', "$..[?(@.specs.material == 'alloy')].model");
        echo $res9b . PHP_EOL;
        // >>> ["Weywot","Mimas"]
res9 = r.json_get('bikes:inventory', "$..[?(@.specs.material == 'alloy')].model")
p res9 # >>> ["Weywot", "Mimas"]
        let res37: String = r
            .json_get(
                "bikes:inventory",
                "$..[?(@.specs.material == 'alloy')].model",
            )
            .expect("Failed to run JSON.GET");
        println!("{res37}"); // >>> [["Weywot","Mimas"]]
        let res37: String = r
            .json_get(
                "bikes:inventory",
                "$..[?(@.specs.material == 'alloy')].model",
            )
            .await
            .expect("Failed to run JSON.GET");
        println!("{res37}"); // >>> [["Weywot","Mimas"]]

This example, valid from version v2.4.2 onwards, filters only bikes whose material begins with "al-" using regex match. Note that this match is case-insensitive because of the prefix (?i) in the regular expression pattern "(?i)al":

Regex filters: Use =~ operator with regular expressions in filter expressions to match patterns in string values when you need flexible pattern-based filtering
> JSON.GET bikes:inventory '$..[?(@.specs.material =~ "(?i)al")].model'
"[\"Quaoar\",\"Weywot\",\"Salacia\",\"Mimas\"]"
res10 = r.json().get("bikes:inventory", "$..[?(@.specs.material =~ '(?i)al')].model")
print(res10)  # >>> ['Quaoar', 'Weywot', 'Salacia', 'Mimas']
const res37 = await client.json.get("bikes:inventory", {
  path: "$..[?(@.specs.material =~ '(?i)al')].model"
});
console.log(res37); //  ['Quaoar', 'Weywot', 'Salacia', 'Mimas']
        Object res37 = jedis.jsonGet(
            "bikes:inventory", new Path2("$..[?(@.specs.material =~ '(?i)al')].model")
        );
        System.out.println(res37);
        // >>> ["Quaoar","Weywot","Salacia","Mimas"]
            CompletableFuture<Void> filter3 = asyncCommands
                    .jsonGet("bikes:inventory", JsonPath.of("$..[?(@.specs.material =~ '(?i)al')].model"))
                    .thenAccept(System.out::println)
                    // >>> [["Quaoar","Weywot","Salacia","Mimas"]]
                    .toCompletableFuture();
            Mono<Void> filter3 = reactiveCommands
                    .jsonGet("bikes:inventory", JsonPath.of("$..[?(@.specs.material =~ '(?i)al')].model")).collectList()
                    .doOnNext(System.out::println) // >>> [["Quaoar","Weywot","Salacia","Mimas"]]
                    .then();
	res10, err := rdb.JSONGet(ctx,
		"bikes:inventory",
		"$..[?(@.specs.material =~ '(?i)al')].model",
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res10) // >>> ["Salacia","Mimas","Quaoar","Weywot"]
        RedisResult res37 = db.JSON().Get(
            "bikes:inventory",
            path: "$..[?(@.specs.material =~ '(?i)al')].model"
        );
        Console.WriteLine(res37);   // >>> ["Quaoar","Weywot","Salacia","Mimas"]
        $res10b = $r->jsonget('bikes:inventory', '', '', '', "$..[?(@.specs.material =~ '(?i)al')].model");
        echo $res10b . PHP_EOL;
        // >>> ["Quaoar","Weywot","Salacia","Mimas"]
res10 = r.json_get('bikes:inventory', "$..[?(@.specs.material =~ '(?i)al')].model")
p res10 # >>> ["Quaoar", "Weywot", "Salacia", "Mimas"]
        let res38: String = r
            .json_get(
                "bikes:inventory",
                "$..[?(@.specs.material =~ '(?i)al')].model",
            )
            .expect("Failed to run JSON.GET");
        println!("{res38}"); // >>> [["Quaoar","Weywot","Salacia","Mimas"]]
        let res38: String = r
            .json_get(
                "bikes:inventory",
                "$..[?(@.specs.material =~ '(?i)al')].model",
            )
            .await
            .expect("Failed to run JSON.GET");
        println!("{res38}"); // >>> [["Quaoar","Weywot","Salacia","Mimas"]]

You can also specify a regex pattern using a property from the JSON object itself. For example, we can add a string property named regex_pat to each mountain bike, with the value "(?i)al" to match the material, as in the previous example. We can then match regex_pat against the bike's material:

Dynamic regex filters: Use regex patterns stored in JSON properties to filter elements when you need to apply patterns defined within the document itself
> JSON.SET bikes:inventory $.inventory.mountain_bikes[0].regex_pat '"(?i)al"'
OK
> JSON.SET bikes:inventory $.inventory.mountain_bikes[1].regex_pat '"(?i)al"'
OK
> JSON.SET bikes:inventory $.inventory.mountain_bikes[2].regex_pat '"(?i)al"'
OK
> JSON.GET bikes:inventory '$.inventory.mountain_bikes[?(@.specs.material =~ @.regex_pat)].model'
"[\"Quaoar\",\"Weywot\"]"
res11 = r.json().set(
    "bikes:inventory", "$.inventory.mountain_bikes[0].regex_pat", "(?i)al"
)
res12 = r.json().set(
    "bikes:inventory", "$.inventory.mountain_bikes[1].regex_pat", "(?i)al"
)
res13 = r.json().set(
    "bikes:inventory", "$.inventory.mountain_bikes[2].regex_pat", "(?i)al"
)

res14 = r.json().get(
    "bikes:inventory",
    "$.inventory.mountain_bikes[?(@.specs.material =~ @.regex_pat)].model",
)
print(res14)  # >>> ['Quaoar', 'Weywot']
const res37a = await client.json.set(
  'bikes:inventory', 
  '$.inventory.mountain_bikes[0].regex_pat', 
  '(?i)al'
);

const res37b = await client.json.set(
  'bikes:inventory', 
  '$.inventory.mountain_bikes[1].regex_pat', 
  '(?i)al'
);

const res37c = await client.json.set(
  'bikes:inventory', 
  '$.inventory.mountain_bikes[2].regex_pat', 
  '(?i)al'
);

const res37d = await client.json.get(
  'bikes:inventory',
  { path: '$.inventory.mountain_bikes[?(@.specs.material =~ @.regex_pat)].model' }
);
console.log(res37d); // ['Quaoar', 'Weywot']
        jedis.jsonSet(
            "bikes:inventory", new Path2("$.inventory.mountain_bikes[0].regex_pat"),
            "\"(?i)al\""
        );
        jedis.jsonSet(
            "bikes:inventory", new Path2("$.inventory.mountain_bikes[1].regex_pat"),
            "\"(?i)al\""
        );
        jedis.jsonSet(
            "bikes:inventory", new Path2("$.inventory.mountain_bikes[2].regex_pat"),
            "\"(?i)al\""
        );
        
        Object res38 = jedis.jsonGet(
            "bikes:inventory",
            new Path2("$.inventory.mountain_bikes[?(@.specs.material =~ @.regex_pat)].model")
        );
        System.out.println(res38);  // >>> ["Quaoar","Weywot"]
            CompletableFuture<Void> filter4 = asyncCommands.jsonSet("bikes:inventory",
                    JsonPath.of("$.inventory.mountain_bikes[0].regex_pat"), parser.createJsonValue("\"(?i)al\""))
                    .thenCompose(r -> {
                        System.out.println(r); // >>> OK

                        return asyncCommands.jsonSet("bikes:inventory", JsonPath.of("$.inventory.mountain_bikes[1].regex_pat"),
                                parser.createJsonValue("\"(?i)al\""));
                    }).thenCompose(r -> {
                        System.out.println(r); // >>> OK

                        return asyncCommands.jsonSet("bikes:inventory", JsonPath.of("$.inventory.mountain_bikes[2].regex_pat"),
                                parser.createJsonValue("\"(?i)al\""));
                    }).thenCompose(res22 -> {
                        System.out.println(res22); // >>> OK

                        return asyncCommands.jsonGet("bikes:inventory",
                                JsonPath.of("$.inventory.mountain_bikes[?(@.specs.material =~ @.regex_pat)].model"));
                    })
                    .thenAccept(System.out::println)
                    // >>> [["Quaoar","Weywot"]]
                    .toCompletableFuture();
            Mono<Void> filter4 = reactiveCommands.jsonSet("bikes:inventory",
                    JsonPath.of("$.inventory.mountain_bikes[0].regex_pat"), parser.createJsonValue("\"(?i)al\""))
                    .doOnNext(r -> {
                        System.out.println(r); // >>> OK
                    })
                    .flatMap(r -> reactiveCommands.jsonSet("bikes:inventory",
                            JsonPath.of("$.inventory.mountain_bikes[1].regex_pat"), parser.createJsonValue("\"(?i)al\"")))
                    .doOnNext(r -> {
                        System.out.println(r); // >>> OK
                    })
                    .flatMap(r -> reactiveCommands.jsonSet("bikes:inventory",
                            JsonPath.of("$.inventory.mountain_bikes[2].regex_pat"), parser.createJsonValue("\"(?i)al\"")))
                    .doOnNext(res22 -> {
                        System.out.println(res22); // >>> OK
                    })
                    .flatMap(res22 -> reactiveCommands
                            .jsonGet("bikes:inventory",
                                    JsonPath.of("$.inventory.mountain_bikes[?(@.specs.material =~ @.regex_pat)].model"))
                            .collectList())
                    .doOnNext(System.out::println) // >>> [["Quaoar","Weywot"]]
                    .then();
	res11, err := rdb.JSONSet(ctx,
		"bikes:inventory",
		"$.inventory.mountain_bikes[0].regex_pat",
		"\"(?i)al\"",
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res11) // >>> OK

	res12, err := rdb.JSONSet(ctx,
		"bikes:inventory",
		"$.inventory.mountain_bikes[1].regex_pat",
		"\"(?i)al\"",
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res12) // >>> OK

	res13, err := rdb.JSONSet(ctx,
		"bikes:inventory",
		"$.inventory.mountain_bikes[2].regex_pat",
		"\"(?i)al\"",
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res13) // >>> OK

	res14, err := rdb.JSONGet(ctx,
		"bikes:inventory",
		"$.inventory.mountain_bikes[?(@.specs.material =~ @.regex_pat)].model",
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res14) // >>> ["Quaoar","Weywot"]
        bool res38 = db.JSON().Set(
            "bikes:inventory",
            "$.inventory.mountain_bikes[0].regex_pat",
            "\"(?i)al\""
        );
        Console.WriteLine(res38);   // >>> True

        bool res39 = db.JSON().Set(
            "bikes:inventory",
            "$.inventory.mountain_bikes[1].regex_pat",
            "\"(?i)al\""
        );
        Console.WriteLine(res39);   // >>> True

        bool res40 = db.JSON().Set(
            "bikes:inventory",
            "$.inventory.mountain_bikes[2].regex_pat",
            "\"(?i)al\""
        );
        Console.WriteLine(res40);   // >>> True

        RedisResult res41 = db.JSON().Get(
            "bikes:inventory",
            path: "$.inventory.mountain_bikes[?(@.specs.material =~ @.regex_pat)].model"
        );
        Console.WriteLine(res41);   // >>> ["Quaoar","Weywot"]
        $r->jsonset('bikes:inventory', '$.inventory.mountain_bikes[0].regex_pat', '"(?i)al"');
        $r->jsonset('bikes:inventory', '$.inventory.mountain_bikes[1].regex_pat', '"(?i)al"');
        $r->jsonset('bikes:inventory', '$.inventory.mountain_bikes[2].regex_pat', '"(?i)al"');

        $res14b = $r->jsonget(
            'bikes:inventory',
            '',
            '',
            '',
            '$.inventory.mountain_bikes[?(@.specs.material =~ @.regex_pat)].model'
        );
        echo $res14b . PHP_EOL;
        // >>> ["Quaoar","Weywot"]
res11 = r.json_set(
  'bikes:inventory', '$.inventory.mountain_bikes[0].regex_pat', '(?i)al'
)
res12 = r.json_set(
  'bikes:inventory', '$.inventory.mountain_bikes[1].regex_pat', '(?i)al'
)
res13 = r.json_set(
  'bikes:inventory', '$.inventory.mountain_bikes[2].regex_pat', '(?i)al'
)

res14 = r.json_get(
  'bikes:inventory',
  '$.inventory.mountain_bikes[?(@.specs.material =~ @.regex_pat)].model'
)
p res14 # >>> ["Quaoar", "Weywot"]
        let _: bool = r
            .json_set(
                "bikes:inventory",
                "$.inventory.mountain_bikes[0].regex_pat",
                &json!("(?i)al"),
            )
            .expect("Failed to run JSON.SET");
        let _: bool = r
            .json_set(
                "bikes:inventory",
                "$.inventory.mountain_bikes[1].regex_pat",
                &json!("(?i)al"),
            )
            .expect("Failed to run JSON.SET");
        let _: bool = r
            .json_set(
                "bikes:inventory",
                "$.inventory.mountain_bikes[2].regex_pat",
                &json!("(?i)al"),
            )
            .expect("Failed to run JSON.SET");

        let res39: String = r
            .json_get(
                "bikes:inventory",
                "$.inventory.mountain_bikes[?(@.specs.material =~ @.regex_pat)].model",
            )
            .expect("Failed to run JSON.GET");
        println!("{res39}"); // >>> [["Quaoar","Weywot"]]
        let _: bool = r
            .json_set(
                "bikes:inventory",
                "$.inventory.mountain_bikes[0].regex_pat",
                &json!("(?i)al"),
            )
            .await
            .expect("Failed to run JSON.SET");
        let _: bool = r
            .json_set(
                "bikes:inventory",
                "$.inventory.mountain_bikes[1].regex_pat",
                &json!("(?i)al"),
            )
            .await
            .expect("Failed to run JSON.SET");
        let _: bool = r
            .json_set(
                "bikes:inventory",
                "$.inventory.mountain_bikes[2].regex_pat",
                &json!("(?i)al"),
            )
            .await
            .expect("Failed to run JSON.SET");

        let res39: String = r
            .json_get(
                "bikes:inventory",
                "$.inventory.mountain_bikes[?(@.specs.material =~ @.regex_pat)].model",
            )
            .await
            .expect("Failed to run JSON.GET");
        println!("{res39}"); // >>> [["Quaoar","Weywot"]]

Beginning with Redis 8.10, the JSONPath filter syntax supports the following operators.

Negation !

The ! operator negates a filter condition. It binds more tightly than the logical && and || operators, so use parentheses to negate a compound condition. A double negation (!!) is equivalent to an existence test.

Filter negation: Use the ! operator to invert a filter condition when you need to select elements that do not match
> JSON.SET doc $ '[{"a":1,"b":1},{"b":2},{"a":1},{"c":3}]'
OK
> JSON.GET doc '$[[email protected]]'
"[{\"b\":2},{\"c\":3}]"
> JSON.GET doc '$[?!(@.a==1)]'
"[{\"b\":2},{\"c\":3}]"
> JSON.GET doc '$[[email protected] && @.b]'
"[{\"b\":2}]"
res1 = r.json().set("doc", "$", [{"a": 1, "b": 1}, {"b": 2}, {"a": 1}, {"c": 3}])
print(res1)
# >>> True

res2 = r.json().get("doc", "$[[email protected]]")
print(res2)
# >>> [{'b': 2}, {'c': 3}]

res3 = r.json().get("doc", "$[?!(@.a==1)]")
print(res3)
# >>> [{'b': 2}, {'c': 3}]

res4 = r.json().get("doc", "$[[email protected] && @.b]")
print(res4)
# >>> [{'b': 2}]
const res1 = await client.json.set('doc', '$', [{ a: 1, b: 1 }, { b: 2 }, { a: 1 }, { c: 3 }]);
console.log(res1); // >>> OK

const res2 = await client.json.get('doc', { path: '$[[email protected]]' });
console.log(res2); // >>> [ { b: 2 }, { c: 3 } ]

const res3 = await client.json.get('doc', { path: '$[?!(@.a==1)]' });
console.log(res3); // >>> [ { b: 2 }, { c: 3 } ]

const res4 = await client.json.get('doc', { path: '$[[email protected] && @.b]' });
console.log(res4); // >>> [ { b: 2 } ]
        String res1 = jedis.jsonSet("doc", new Path2("$"), "[{\"a\":1,\"b\":1},{\"b\":2},{\"a\":1},{\"c\":3}]");
        System.out.println(res1);    // >>> OK

        Object res2 = jedis.jsonGet("doc", new Path2("$[[email protected]]"));
        System.out.println(res2);    // >>> [{"b":2},{"c":3}]

        Object res3 = jedis.jsonGet("doc", new Path2("$[?!(@.a==1)]"));
        System.out.println(res3);    // >>> [{"b":2},{"c":3}]

        Object res4 = jedis.jsonGet("doc", new Path2("$[[email protected] && @.b]"));
        System.out.println(res4);    // >>> [{"b":2}]
            CompletableFuture<Void> filterNegationExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("[{\"a\":1,\"b\":1},{\"b\":2},{\"a\":1},{\"c\":3}]"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$[[email protected]]"));
                    }).thenCompose(res2 -> {
                        System.out.println(res2); // >>> [[{"b":2},{"c":3}]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$[?!(@.a==1)]"));
                    }).thenCompose(res3 -> {
                        System.out.println(res3); // >>> [[{"b":2},{"c":3}]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$[[email protected] && @.b]"));
                    }).thenAccept(res4 -> {
                        System.out.println(res4); // >>> [[{"b":2}]]
                    }).toCompletableFuture();
            Mono<Void> filterNegationExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("[{\"a\":1,\"b\":1},{\"b\":2},{\"a\":1},{\"c\":3}]"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$[[email protected]]")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[{"b":2},{"c":3}]]
                    })
                    .flatMap(res2 -> reactiveCommands.jsonGet("doc", JsonPath.of("$[?!(@.a==1)]")).collectList())
                    .doOnNext(res3 -> {
                        System.out.println(res3); // >>> [[{"b":2},{"c":3}]]
                    })
                    .flatMap(res3 -> reactiveCommands.jsonGet("doc", JsonPath.of("$[[email protected] && @.b]")).collectList())
                    .doOnNext(res4 -> {
                        System.out.println(res4); // >>> [[{"b":2}]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`[{"a":1,"b":1},{"b":2},{"a":1},{"c":3}]`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$[[email protected]]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [{"b":2},{"c":3}]

	res3, err := rdb.JSONGet(ctx, "doc", `$[?!(@.a==1)]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res3) // >>> [{"b":2},{"c":3}]

	res4, err := rdb.JSONGet(ctx, "doc", `$[[email protected] && @.b]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res4) // >>> [{"b":2}]
        bool res1 = db.JSON().Set("doc", "$", "[{\"a\":1,\"b\":1},{\"b\":2},{\"a\":1},{\"c\":3}]");
        Console.WriteLine(res1);    // >>> True

        RedisResult res2 = db.JSON().Get("doc", path: "$[[email protected]]");
        Console.WriteLine(res2);    // >>> [{"b":2},{"c":3}]

        RedisResult res3 = db.JSON().Get("doc", path: "$[?!(@.a==1)]");
        Console.WriteLine(res3);    // >>> [{"b":2},{"c":3}]

        RedisResult res4 = db.JSON().Get("doc", path: "$[[email protected] && @.b]");
        Console.WriteLine(res4);    // >>> [{"b":2}]
        $res1 = $this->redis->jsonset('doc', '$', json_encode(
            [["a" => 1, "b" => 1], ["b" => 2], ["a" => 1], ["c" => 3]]
        ));
        echo $res1 . PHP_EOL; // >>> OK

        $res2 = $this->redis->jsonget('doc', '', '', '', '$[[email protected]]');
        echo $res2 . PHP_EOL; // >>> [{"b":2},{"c":3}]

        $res3 = $this->redis->jsonget('doc', '', '', '', '$[?!(@.a==1)]');
        echo $res3 . PHP_EOL; // >>> [{"b":2},{"c":3}]

        $res4 = $this->redis->jsonget('doc', '', '', '', '$[[email protected] && @.b]');
        echo $res4 . PHP_EOL; // >>> [{"b":2}]
res1 = r.json_set('doc', '$', [{ 'a' => 1, 'b' => 1 }, { 'b' => 2 }, { 'a' => 1 }, { 'c' => 3 }])
puts res1 # >>> OK

res2 = r.json_get('doc', '$[[email protected]]')
p res2 # >>> [{"b"=>2}, {"c"=>3}]

res3 = r.json_get('doc', '$[?!(@.a==1)]')
p res3 # >>> [{"b"=>2}, {"c"=>3}]

res4 = r.json_get('doc', '$[[email protected] && @.b]')
p res4 # >>> [{"b"=>2}]
        match r.json_set("doc", "$", &json!([{"a":1,"b":1},{"b":2},{"a":1},{"c":3}])) {
            Ok(res1) => {
                let res1: bool = res1;
                println!("{}", if res1 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$[[email protected]]") {
            Ok(res2) => {
                let res2: String = res2;
                println!("{res2}");    // >>> [{"b":2},{"c":3}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$[?!(@.a==1)]") {
            Ok(res3) => {
                let res3: String = res3;
                println!("{res3}");    // >>> [{"b":2},{"c":3}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$[[email protected] && @.b]") {
            Ok(res4) => {
                let res4: String = res4;
                println!("{res4}");    // >>> [{"b":2}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!([{"a":1,"b":1},{"b":2},{"a":1},{"c":3}])).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$[[email protected]]").await {
            Ok(res1) => {
                let res1: String = res1;
                println!("{res1}");    // >>> [{"b":2},{"c":3}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$[?!(@.a==1)]").await {
            Ok(res2) => {
                let res2: String = res2;
                println!("{res2}");    // >>> [{"b":2},{"c":3}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$[[email protected] && @.b]").await {
            Ok(res3) => {
                let res3: String = res3;
                println!("{res3}");    // >>> [{"b":2}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

Comparing array and object literals

The == and != operators can compare any JSON literal, including array and object literals, on either side of the operator. Comparison is by structural (deep) equality. A comparison between values of different types is always false.

Literal comparison: Use == and != to compare array and object literals by structural equality when you need to match a whole nested value
> JSON.SET doc $ '{"arrs":[[1],[2],[1,2],[1,[2]]],"objs":[{"x":1},{"x":2},{"y":1}]}'
OK
> JSON.GET doc '$.arrs[?(@ == [1])]'
"[[1]]"
> JSON.GET doc '$.arrs[?(@ == [1,[2]])]'
"[[1,[2]]]"
> JSON.GET doc '$.objs[?(@ == {"x":1})]'
"[{\"x\":1}]"
res1 = r.json().set(
    "doc",
    "$",
    {"arrs": [[1], [2], [1, 2], [1, [2]]], "objs": [{"x": 1}, {"x": 2}, {"y": 1}]},
)
print(res1)
# >>> True

res2 = r.json().get("doc", "$.arrs[?(@ == [1])]")
print(res2)
# >>> [[1]]

res3 = r.json().get("doc", "$.arrs[?(@ == [1,[2]])]")
print(res3)
# >>> [[1, [2]]]

res4 = r.json().get("doc", '$.objs[?(@ == {"x":1})]')
print(res4)
# >>> [{'x': 1}]
const res5 = await client.json.set('doc', '$', {
  arrs: [[1], [2], [1, 2], [1, [2]]],
  objs: [{ x: 1 }, { x: 2 }, { y: 1 }]
});
console.log(res5); // >>> OK

const res6 = await client.json.get('doc', { path: '$.arrs[?(@ == [1])]' });
console.log(res6); // >>> [ [ 1 ] ]

const res7 = await client.json.get('doc', { path: '$.arrs[?(@ == [1,[2]])]' });
console.log(res7); // >>> [ [ 1, [ 2 ] ] ]

const res8 = await client.json.get('doc', { path: '$.objs[?(@ == {"x":1})]' });
console.log(res8); // >>> [ { x: 1 } ]
        String res5 = jedis.jsonSet(
            "doc",
            new Path2("$"),
            "{\"arrs\":[[1],[2],[1,2],[1,[2]]],\"objs\":[{\"x\":1},{\"x\":2},{\"y\":1}]}"
        );
        System.out.println(res5);    // >>> OK

        Object res6 = jedis.jsonGet("doc", new Path2("$.arrs[?(@ == [1])]"));
        System.out.println(res6);    // >>> [[1]]

        Object res7 = jedis.jsonGet("doc", new Path2("$.arrs[?(@ == [1,[2]])]"));
        System.out.println(res7);    // >>> [[1,[2]]]

        Object res8 = jedis.jsonGet("doc", new Path2("$.objs[?(@ == {\"x\":1})]"));
        System.out.println(res8);    // >>> [{"x":1}]
            CompletableFuture<Void> filterLiteralEqExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue(
                                    "{\"arrs\":[[1],[2],[1,2],[1,[2]]],\"objs\":[{\"x\":1},{\"x\":2},{\"y\":1}]}"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.arrs[?(@ == [1])]"));
                    }).thenCompose(res2 -> {
                        System.out.println(res2); // >>> [[[1]]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.arrs[?(@ == [1,[2]])]"));
                    }).thenCompose(res3 -> {
                        System.out.println(res3); // >>> [[[1,[2]]]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.objs[?(@ == {\"x\":1})]"));
                    }).thenAccept(res4 -> {
                        System.out.println(res4); // >>> [[{"x":1}]]
                    }).toCompletableFuture();
            Mono<Void> filterLiteralEqExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue(
                                    "{\"arrs\":[[1],[2],[1,2],[1,[2]]],\"objs\":[{\"x\":1},{\"x\":2},{\"y\":1}]}"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.arrs[?(@ == [1])]")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[[1]]]
                    })
                    .flatMap(res2 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.arrs[?(@ == [1,[2]])]")).collectList())
                    .doOnNext(res3 -> {
                        System.out.println(res3); // >>> [[[1,[2]]]]
                    })
                    .flatMap(res3 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.objs[?(@ == {\"x\":1})]")).collectList())
                    .doOnNext(res4 -> {
                        System.out.println(res4); // >>> [[{"x":1}]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`{"arrs":[[1],[2],[1,2],[1,[2]]],"objs":[{"x":1},{"x":2},{"y":1}]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$.arrs[?(@ == [1])]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [[1]]

	res3, err := rdb.JSONGet(ctx, "doc", `$.arrs[?(@ == [1,[2]])]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res3) // >>> [[1,[2]]]

	res4, err := rdb.JSONGet(ctx, "doc", `$.objs[?(@ == {"x":1})]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res4) // >>> [{"x":1}]
        bool res5 = db.JSON().Set(
            "doc",
            "$",
            "{\"arrs\":[[1],[2],[1,2],[1,[2]]],\"objs\":[{\"x\":1},{\"x\":2},{\"y\":1}]}"
        );
        Console.WriteLine(res5);    // >>> True

        RedisResult res6 = db.JSON().Get("doc", path: "$.arrs[?(@ == [1])]");
        Console.WriteLine(res6);    // >>> [[1]]

        RedisResult res7 = db.JSON().Get("doc", path: "$.arrs[?(@ == [1,[2]])]");
        Console.WriteLine(res7);    // >>> [[1,[2]]]

        RedisResult res8 = db.JSON().Get("doc", path: "$.objs[?(@ == {\"x\":1})]");
        Console.WriteLine(res8);    // >>> [{"x":1}]
        $res5 = $this->redis->jsonset('doc', '$', json_encode([
            "arrs" => [[1], [2], [1, 2], [1, [2]]],
            "objs" => [["x" => 1], ["x" => 2], ["y" => 1]],
        ]));
        echo $res5 . PHP_EOL; // >>> OK

        $res6 = $this->redis->jsonget('doc', '', '', '', '$.arrs[?(@ == [1])]');
        echo $res6 . PHP_EOL; // >>> [[1]]

        $res7 = $this->redis->jsonget('doc', '', '', '', '$.arrs[?(@ == [1,[2]])]');
        echo $res7 . PHP_EOL; // >>> [[1,[2]]]

        $res8 = $this->redis->jsonget('doc', '', '', '', '$.objs[?(@ == {"x":1})]');
        echo $res8 . PHP_EOL; // >>> [{"x":1}]
res1 = r.json_set(
  'doc', '$',
  { 'arrs' => [[1], [2], [1, 2], [1, [2]]], 'objs' => [{ 'x' => 1 }, { 'x' => 2 }, { 'y' => 1 }] }
)
puts res1 # >>> OK

res2 = r.json_get('doc', '$.arrs[?(@ == [1])]')
p res2 # >>> [[1]]

res3 = r.json_get('doc', '$.arrs[?(@ == [1,[2]])]')
p res3 # >>> [[1, [2]]]

res4 = r.json_get('doc', '$.objs[?(@ == {"x":1})]')
p res4 # >>> [{"x"=>1}]
        match r.json_set(
            "doc",
            "$",
            &json!({"arrs":[[1],[2],[1,2],[1,[2]]],"objs":[{"x":1},{"x":2},{"y":1}]}),
        ) {
            Ok(res5) => {
                let res5: bool = res5;
                println!("{}", if res5 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.arrs[?(@ == [1])]") {
            Ok(res6) => {
                let res6: String = res6;
                println!("{res6}");    // >>> [[1]]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.arrs[?(@ == [1,[2]])]") {
            Ok(res7) => {
                let res7: String = res7;
                println!("{res7}");    // >>> [[1,[2]]]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", r#"$.objs[?(@ == {"x":1})]"#) {
            Ok(res8) => {
                let res8: String = res8;
                println!("{res8}");    // >>> [{"x":1}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set(
            "doc",
            "$",
            &json!({"arrs":[[1],[2],[1,2],[1,[2]]],"objs":[{"x":1},{"x":2},{"y":1}]}),
        ).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.arrs[?(@ == [1])]").await {
            Ok(res4) => {
                let res4: String = res4;
                println!("{res4}");    // >>> [[1]]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.arrs[?(@ == [1,[2]])]").await {
            Ok(res5) => {
                let res5: String = res5;
                println!("{res5}");    // >>> [[1,[2]]]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", r#"$.objs[?(@ == {"x":1})]"#).await {
            Ok(res6) => {
                let res6: String = res6;
                println!("{res6}");    // >>> [{"x":1}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

Arithmetic operators

The binary operators +, -, *, /, and % and the unary operators - and + operate on numbers. Precedence, from highest to lowest, is: unary -/+, then *///%, then +/-. Use parentheses to override precedence. Division always produces a floating-point result. Division or modulo by zero produces Nothing, so no element matches.

Remember that arithmetic operators must be surrounded by spaces (see Evaluation semantics).

Arithmetic in filters: Use +, -, *, / and % inside a filter condition when you need to compute a value before comparing it
> JSON.SET doc $ '[{"a":2,"b":3},{"a":5,"b":2}]'
OK
> JSON.GET doc '$[[email protected] + 1 == 3]'
"[{\"a\":2,\"b\":3}]"
> JSON.GET doc '$[[email protected] + @.b * 2 == 8]'
"[{\"a\":2,\"b\":3}]"
> JSON.GET doc '$[?(@.a + @.b) * 2 == 10]'
"[{\"a\":2,\"b\":3}]"
res1 = r.json().set("doc", "$", [{"a": 2, "b": 3}, {"a": 5, "b": 2}])
print(res1)
# >>> True

res2 = r.json().get("doc", "$[[email protected] + 1 == 3]")
print(res2)
# >>> [{'a': 2, 'b': 3}]

res3 = r.json().get("doc", "$[[email protected] + @.b * 2 == 8]")
print(res3)
# >>> [{'a': 2, 'b': 3}]

res4 = r.json().get("doc", "$[?(@.a + @.b) * 2 == 10]")
print(res4)
# >>> [{'a': 2, 'b': 3}]
const res9 = await client.json.set('doc', '$', [{ a: 2, b: 3 }, { a: 5, b: 2 }]);
console.log(res9); // >>> OK

const res10 = await client.json.get('doc', { path: '$[[email protected] + 1 == 3]' });
console.log(res10); // >>> [ { a: 2, b: 3 } ]

const res11 = await client.json.get('doc', { path: '$[[email protected] + @.b * 2 == 8]' });
console.log(res11); // >>> [ { a: 2, b: 3 } ]

const res12 = await client.json.get('doc', { path: '$[?(@.a + @.b) * 2 == 10]' });
console.log(res12); // >>> [ { a: 2, b: 3 } ]
        String res9 = jedis.jsonSet("doc", new Path2("$"), "[{\"a\":2,\"b\":3},{\"a\":5,\"b\":2}]");
        System.out.println(res9);    // >>> OK

        Object res10 = jedis.jsonGet("doc", new Path2("$[[email protected] + 1 == 3]"));
        System.out.println(res10);    // >>> [{"a":2,"b":3}]

        Object res11 = jedis.jsonGet("doc", new Path2("$[[email protected] + @.b * 2 == 8]"));
        System.out.println(res11);    // >>> [{"a":2,"b":3}]

        Object res12 = jedis.jsonGet("doc", new Path2("$[?(@.a + @.b) * 2 == 10]"));
        System.out.println(res12);    // >>> [{"a":2,"b":3}]
            CompletableFuture<Void> filterArithmeticExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("[{\"a\":2,\"b\":3},{\"a\":5,\"b\":2}]"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$[[email protected] + 1 == 3]"));
                    }).thenCompose(res2 -> {
                        System.out.println(res2); // >>> [[{"a":2,"b":3}]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$[[email protected] + @.b * 2 == 8]"));
                    }).thenCompose(res3 -> {
                        System.out.println(res3); // >>> [[{"a":2,"b":3}]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$[?(@.a + @.b) * 2 == 10]"));
                    }).thenAccept(res4 -> {
                        System.out.println(res4); // >>> [[{"a":2,"b":3}]]
                    }).toCompletableFuture();
            Mono<Void> filterArithmeticExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("[{\"a\":2,\"b\":3},{\"a\":5,\"b\":2}]"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$[[email protected] + 1 == 3]")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[{"a":2,"b":3}]]
                    })
                    .flatMap(res2 -> reactiveCommands.jsonGet("doc", JsonPath.of("$[[email protected] + @.b * 2 == 8]")).collectList())
                    .doOnNext(res3 -> {
                        System.out.println(res3); // >>> [[{"a":2,"b":3}]]
                    })
                    .flatMap(res3 -> reactiveCommands.jsonGet("doc", JsonPath.of("$[?(@.a + @.b) * 2 == 10]")).collectList())
                    .doOnNext(res4 -> {
                        System.out.println(res4); // >>> [[{"a":2,"b":3}]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`[{"a":2,"b":3},{"a":5,"b":2}]`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$[[email protected] + 1 == 3]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [{"a":2,"b":3}]

	res3, err := rdb.JSONGet(ctx, "doc", `$[[email protected] + @.b * 2 == 8]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res3) // >>> [{"a":2,"b":3}]

	res4, err := rdb.JSONGet(ctx, "doc", `$[?(@.a + @.b) * 2 == 10]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res4) // >>> [{"a":2,"b":3}]
        bool res9 = db.JSON().Set("doc", "$", "[{\"a\":2,\"b\":3},{\"a\":5,\"b\":2}]");
        Console.WriteLine(res9);    // >>> True

        RedisResult res10 = db.JSON().Get("doc", path: "$[[email protected] + 1 == 3]");
        Console.WriteLine(res10);   // >>> [{"a":2,"b":3}]

        RedisResult res11 = db.JSON().Get("doc", path: "$[[email protected] + @.b * 2 == 8]");
        Console.WriteLine(res11);   // >>> [{"a":2,"b":3}]

        RedisResult res12 = db.JSON().Get("doc", path: "$[?(@.a + @.b) * 2 == 10]");
        Console.WriteLine(res12);   // >>> [{"a":2,"b":3}]
        $res9 = $this->redis->jsonset('doc', '$', json_encode(
            [["a" => 2, "b" => 3], ["a" => 5, "b" => 2]]
        ));
        echo $res9 . PHP_EOL; // >>> OK

        $res10 = $this->redis->jsonget('doc', '', '', '', '$[[email protected] + 1 == 3]');
        echo $res10 . PHP_EOL; // >>> [{"a":2,"b":3}]

        $res11 = $this->redis->jsonget('doc', '', '', '', '$[[email protected] + @.b * 2 == 8]');
        echo $res11 . PHP_EOL; // >>> [{"a":2,"b":3}]

        $res12 = $this->redis->jsonget('doc', '', '', '', '$[?(@.a + @.b) * 2 == 10]');
        echo $res12 . PHP_EOL; // >>> [{"a":2,"b":3}]
res1 = r.json_set('doc', '$', [{ 'a' => 2, 'b' => 3 }, { 'a' => 5, 'b' => 2 }])
puts res1 # >>> OK

res2 = r.json_get('doc', '$[[email protected] + 1 == 3]')
p res2 # >>> [{"a"=>2, "b"=>3}]

res3 = r.json_get('doc', '$[[email protected] + @.b * 2 == 8]')
p res3 # >>> [{"a"=>2, "b"=>3}]

res4 = r.json_get('doc', '$[?(@.a + @.b) * 2 == 10]')
p res4 # >>> [{"a"=>2, "b"=>3}]
        match r.json_set("doc", "$", &json!([{"a":2,"b":3},{"a":5,"b":2}])) {
            Ok(res9) => {
                let res9: bool = res9;
                println!("{}", if res9 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$[[email protected] + 1 == 3]") {
            Ok(res10) => {
                let res10: String = res10;
                println!("{res10}");    // >>> [{"a":2,"b":3}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$[[email protected] + @.b * 2 == 8]") {
            Ok(res11) => {
                let res11: String = res11;
                println!("{res11}");    // >>> [{"a":2,"b":3}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$[?(@.a + @.b) * 2 == 10]") {
            Ok(res12) => {
                let res12: String = res12;
                println!("{res12}");    // >>> [{"a":2,"b":3}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!([{"a":2,"b":3},{"a":5,"b":2}])).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$[[email protected] + 1 == 3]").await {
            Ok(res7) => {
                let res7: String = res7;
                println!("{res7}");    // >>> [{"a":2,"b":3}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$[[email protected] + @.b * 2 == 8]").await {
            Ok(res8) => {
                let res8: String = res8;
                println!("{res8}");    // >>> [{"a":2,"b":3}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$[?(@.a + @.b) * 2 == 10]").await {
            Ok(res9) => {
                let res9: String = res9;
                println!("{res9}");    // >>> [{"a":2,"b":3}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

Membership: in and nin

value in array matches when value is a member of array; value nin array is its strict negation. The right-hand side can be an array literal or a path to an array. Membership uses the same structural comparison and number coercion as ==. If the right-hand side is not an array, in is false (so nin is true).

Membership filters: Use in and nin to test whether a value is a member of an array when you need set-style matching
> JSON.SET doc $ '{"a":[1,2,3,4],"allow":[2,3]}'
OK
> JSON.GET doc '$.a[?@ in [2,4]]'
"[2,4]"
> JSON.GET doc '$.a[?@ nin [2,4]]'
"[1,3]"
> JSON.GET doc '$.a[?@ in $.allow]'
"[2,3]"
res1 = r.json().set("doc", "$", {"a": [1, 2, 3, 4], "allow": [2, 3]})
print(res1)
# >>> True

res2 = r.json().get("doc", "$.a[?@ in [2,4]]")
print(res2)
# >>> [2, 4]

res3 = r.json().get("doc", "$.a[?@ nin [2,4]]")
print(res3)
# >>> [1, 3]

res4 = r.json().get("doc", "$.a[?@ in $.allow]")
print(res4)
# >>> [2, 3]
const res13 = await client.json.set('doc', '$', { a: [1, 2, 3, 4], allow: [2, 3] });
console.log(res13); // >>> OK

const res14 = await client.json.get('doc', { path: '$.a[?@ in [2,4]]' });
console.log(res14); // >>> [ 2, 4 ]

const res15 = await client.json.get('doc', { path: '$.a[?@ nin [2,4]]' });
console.log(res15); // >>> [ 1, 3 ]

const res16 = await client.json.get('doc', { path: '$.a[?@ in $.allow]' });
console.log(res16); // >>> [ 2, 3 ]
        String res13 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":[1,2,3,4],\"allow\":[2,3]}");
        System.out.println(res13);    // >>> OK

        Object res14 = jedis.jsonGet("doc", new Path2("$.a[?@ in [2,4]]"));
        System.out.println(res14);    // >>> [2,4]

        Object res15 = jedis.jsonGet("doc", new Path2("$.a[?@ nin [2,4]]"));
        System.out.println(res15);    // >>> [1,3]

        Object res16 = jedis.jsonGet("doc", new Path2("$.a[?@ in $.allow]"));
        System.out.println(res16);    // >>> [2,3]
            CompletableFuture<Void> filterMembershipExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":[1,2,3,4],\"allow\":[2,3]}"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?@ in [2,4]]"));
                    }).thenCompose(res2 -> {
                        System.out.println(res2); // >>> [[2,4]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?@ nin [2,4]]"));
                    }).thenCompose(res3 -> {
                        System.out.println(res3); // >>> [[1,3]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?@ in $.allow]"));
                    }).thenAccept(res4 -> {
                        System.out.println(res4); // >>> [[2,3]]
                    }).toCompletableFuture();
            Mono<Void> filterMembershipExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("{\"a\":[1,2,3,4],\"allow\":[2,3]}"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?@ in [2,4]]")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[2,4]]
                    })
                    .flatMap(res2 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?@ nin [2,4]]")).collectList())
                    .doOnNext(res3 -> {
                        System.out.println(res3); // >>> [[1,3]]
                    })
                    .flatMap(res3 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?@ in $.allow]")).collectList())
                    .doOnNext(res4 -> {
                        System.out.println(res4); // >>> [[2,3]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":[1,2,3,4],"allow":[2,3]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$.a[?@ in [2,4]]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [2,4]

	res3, err := rdb.JSONGet(ctx, "doc", `$.a[?@ nin [2,4]]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res3) // >>> [1,3]

	res4, err := rdb.JSONGet(ctx, "doc", `$.a[?@ in $.allow]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res4) // >>> [2,3]
        bool res13 = db.JSON().Set("doc", "$", "{\"a\":[1,2,3,4],\"allow\":[2,3]}");
        Console.WriteLine(res13);   // >>> True

        RedisResult res14 = db.JSON().Get("doc", path: "$.a[?@ in [2,4]]");
        Console.WriteLine(res14);   // >>> [2,4]

        RedisResult res15 = db.JSON().Get("doc", path: "$.a[?@ nin [2,4]]");
        Console.WriteLine(res15);   // >>> [1,3]

        RedisResult res16 = db.JSON().Get("doc", path: "$.a[?@ in $.allow]");
        Console.WriteLine(res16);   // >>> [2,3]
        $res13 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => [1, 2, 3, 4], "allow" => [2, 3]]
        ));
        echo $res13 . PHP_EOL; // >>> OK

        $res14 = $this->redis->jsonget('doc', '', '', '', '$.a[?@ in [2,4]]');
        echo $res14 . PHP_EOL; // >>> [2,4]

        $res15 = $this->redis->jsonget('doc', '', '', '', '$.a[?@ nin [2,4]]');
        echo $res15 . PHP_EOL; // >>> [1,3]

        $res16 = $this->redis->jsonget('doc', '', '', '', '$.a[?@ in $.allow]');
        echo $res16 . PHP_EOL; // >>> [2,3]
res1 = r.json_set('doc', '$', { 'a' => [1, 2, 3, 4], 'allow' => [2, 3] })
puts res1 # >>> OK

res2 = r.json_get('doc', '$.a[?@ in [2,4]]')
p res2 # >>> [2, 4]

res3 = r.json_get('doc', '$.a[?@ nin [2,4]]')
p res3 # >>> [1, 3]

res4 = r.json_get('doc', '$.a[?@ in $.allow]')
p res4 # >>> [2, 3]
        match r.json_set("doc", "$", &json!({"a":[1,2,3,4],"allow":[2,3]})) {
            Ok(res13) => {
                let res13: bool = res13;
                println!("{}", if res13 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?@ in [2,4]]") {
            Ok(res14) => {
                let res14: String = res14;
                println!("{res14}");    // >>> [2,4]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?@ nin [2,4]]") {
            Ok(res15) => {
                let res15: String = res15;
                println!("{res15}");    // >>> [1,3]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?@ in $.allow]") {
            Ok(res16) => {
                let res16: String = res16;
                println!("{res16}");    // >>> [2,3]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!({"a":[1,2,3,4],"allow":[2,3]})).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.a[?@ in [2,4]]").await {
            Ok(res10) => {
                let res10: String = res10;
                println!("{res10}");    // >>> [2,4]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?@ nin [2,4]]").await {
            Ok(res11) => {
                let res11: String = res11;
                println!("{res11}");    // >>> [1,3]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?@ in $.allow]").await {
            Ok(res12) => {
                let res12: String = res12;
                println!("{res12}");    // >>> [2,3]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

Set relations: subsetof, anyof, and noneof

These operators compare two arrays (each side can be an array literal or a path to an array):

  • subsetof matches when every element of the left array is a member of the right array. An empty array is a subset of any array.
  • anyof matches when the two arrays have a non-empty intersection. An empty array never matches.
  • noneof matches when the two arrays have an empty intersection. An empty array always matches.
Set relation filters: Use subsetof, anyof, and noneof to compare two arrays when you need to match based on their overlap
> JSON.SET doc $ '{"a":[[1,2],[1,5],[]]}'
OK
> JSON.GET doc '$.a[?@ subsetof [1,2,3]]'
"[[1,2],[]]"
> JSON.SET doc $ '{"a":[[1,9],[8,9],[]]}'
OK
> JSON.GET doc '$.a[?@ anyof [1,2,3]]'
"[[1,9]]"
> JSON.SET doc $ '{"a":[[4,5],[1,9],[]]}'
OK
> JSON.GET doc '$.a[?@ noneof [1,2,3]]'
"[[4,5],[]]"
res1 = r.json().set("doc", "$", {"a": [[1, 2], [1, 5], []]})
print(res1)
# >>> True

res2 = r.json().get("doc", "$.a[?@ subsetof [1,2,3]]")
print(res2)
# >>> [[1, 2], []]

res3 = r.json().set("doc", "$", {"a": [[1, 9], [8, 9], []]})
print(res3)
# >>> True

res4 = r.json().get("doc", "$.a[?@ anyof [1,2,3]]")
print(res4)
# >>> [[1, 9]]

res5 = r.json().set("doc", "$", {"a": [[4, 5], [1, 9], []]})
print(res5)
# >>> True

res6 = r.json().get("doc", "$.a[?@ noneof [1,2,3]]")
print(res6)
# >>> [[4, 5], []]
const res17 = await client.json.set('doc', '$', { a: [[1, 2], [1, 5], []] });
console.log(res17); // >>> OK

const res18 = await client.json.get('doc', { path: '$.a[?@ subsetof [1,2,3]]' });
console.log(res18); // >>> [ [ 1, 2 ], [] ]

const res19 = await client.json.set('doc', '$', { a: [[1, 9], [8, 9], []] });
console.log(res19); // >>> OK

const res20 = await client.json.get('doc', { path: '$.a[?@ anyof [1,2,3]]' });
console.log(res20); // >>> [ [ 1, 9 ] ]

const res21 = await client.json.set('doc', '$', { a: [[4, 5], [1, 9], []] });
console.log(res21); // >>> OK

const res22 = await client.json.get('doc', { path: '$.a[?@ noneof [1,2,3]]' });
console.log(res22); // >>> [ [ 4, 5 ], [] ]
        String res17 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":[[1,2],[1,5],[]]}");
        System.out.println(res17);    // >>> OK

        Object res18 = jedis.jsonGet("doc", new Path2("$.a[?@ subsetof [1,2,3]]"));
        System.out.println(res18);    // >>> [[1,2],[]]

        String res19 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":[[1,9],[8,9],[]]}");
        System.out.println(res19);    // >>> OK

        Object res20 = jedis.jsonGet("doc", new Path2("$.a[?@ anyof [1,2,3]]"));
        System.out.println(res20);    // >>> [[1,9]]

        String res21 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":[[4,5],[1,9],[]]}");
        System.out.println(res21);    // >>> OK

        Object res22 = jedis.jsonGet("doc", new Path2("$.a[?@ noneof [1,2,3]]"));
        System.out.println(res22);    // >>> [[4,5],[]]
            CompletableFuture<Void> filterSetRelationsExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("{\"a\":[[1,2],[1,5],[]]}"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?@ subsetof [1,2,3]]"));
                    }).thenCompose(res2 -> {
                        System.out.println(res2); // >>> [[[1,2],[]]]
                        return asyncCommands.jsonSet("doc", JsonPath.ROOT_PATH,
                                parser.createJsonValue("{\"a\":[[1,9],[8,9],[]]}"));
                    }).thenCompose(res3 -> {
                        System.out.println(res3); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?@ anyof [1,2,3]]"));
                    }).thenCompose(res4 -> {
                        System.out.println(res4); // >>> [[[1,9]]]
                        return asyncCommands.jsonSet("doc", JsonPath.ROOT_PATH,
                                parser.createJsonValue("{\"a\":[[4,5],[1,9],[]]}"));
                    }).thenCompose(res5 -> {
                        System.out.println(res5); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?@ noneof [1,2,3]]"));
                    }).thenAccept(res6 -> {
                        System.out.println(res6); // >>> [[[4,5],[]]]
                    }).toCompletableFuture();
            Mono<Void> filterSetRelationsExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("{\"a\":[[1,2],[1,5],[]]}"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?@ subsetof [1,2,3]]")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[[1,2],[]]]
                    })
                    .flatMap(res2 -> reactiveCommands.jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":[[1,9],[8,9],[]]}")))
                    .doOnNext(res3 -> {
                        System.out.println(res3); // >>> OK
                    })
                    .flatMap(res3 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?@ anyof [1,2,3]]")).collectList())
                    .doOnNext(res4 -> {
                        System.out.println(res4); // >>> [[[1,9]]]
                    })
                    .flatMap(res4 -> reactiveCommands.jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":[[4,5],[1,9],[]]}")))
                    .doOnNext(res5 -> {
                        System.out.println(res5); // >>> OK
                    })
                    .flatMap(res5 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?@ noneof [1,2,3]]")).collectList())
                    .doOnNext(res6 -> {
                        System.out.println(res6); // >>> [[[4,5],[]]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":[[1,2],[1,5],[]]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$.a[?@ subsetof [1,2,3]]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [[1,2],[]]

	res3, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":[[1,9],[8,9],[]]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res3) // >>> OK

	res4, err := rdb.JSONGet(ctx, "doc", `$.a[?@ anyof [1,2,3]]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res4) // >>> [[1,9]]

	res5, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":[[4,5],[1,9],[]]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res5) // >>> OK

	res6, err := rdb.JSONGet(ctx, "doc", `$.a[?@ noneof [1,2,3]]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res6) // >>> [[4,5],[]]
        bool res17 = db.JSON().Set("doc", "$", "{\"a\":[[1,2],[1,5],[]]}");
        Console.WriteLine(res17);   // >>> True

        RedisResult res18 = db.JSON().Get("doc", path: "$.a[?@ subsetof [1,2,3]]");
        Console.WriteLine(res18);   // >>> [[1,2],[]]

        bool res19 = db.JSON().Set("doc", "$", "{\"a\":[[1,9],[8,9],[]]}");
        Console.WriteLine(res19);   // >>> True

        RedisResult res20 = db.JSON().Get("doc", path: "$.a[?@ anyof [1,2,3]]");
        Console.WriteLine(res20);   // >>> [[1,9]]

        bool res21 = db.JSON().Set("doc", "$", "{\"a\":[[4,5],[1,9],[]]}");
        Console.WriteLine(res21);   // >>> True

        RedisResult res22 = db.JSON().Get("doc", path: "$.a[?@ noneof [1,2,3]]");
        Console.WriteLine(res22);   // >>> [[4,5],[]]
        $res17 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => [[1, 2], [1, 5], []]]
        ));
        echo $res17 . PHP_EOL; // >>> OK

        $res18 = $this->redis->jsonget('doc', '', '', '', '$.a[?@ subsetof [1,2,3]]');
        echo $res18 . PHP_EOL; // >>> [[1,2],[]]

        $res19 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => [[1, 9], [8, 9], []]]
        ));
        echo $res19 . PHP_EOL; // >>> OK

        $res20 = $this->redis->jsonget('doc', '', '', '', '$.a[?@ anyof [1,2,3]]');
        echo $res20 . PHP_EOL; // >>> [[1,9]]

        $res21 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => [[4, 5], [1, 9], []]]
        ));
        echo $res21 . PHP_EOL; // >>> OK

        $res22 = $this->redis->jsonget('doc', '', '', '', '$.a[?@ noneof [1,2,3]]');
        echo $res22 . PHP_EOL; // >>> [[4,5],[]]
res1 = r.json_set('doc', '$', { 'a' => [[1, 2], [1, 5], []] })
puts res1 # >>> OK

res2 = r.json_get('doc', '$.a[?@ subsetof [1,2,3]]')
p res2 # >>> [[1, 2], []]

res3 = r.json_set('doc', '$', { 'a' => [[1, 9], [8, 9], []] })
puts res3 # >>> OK

res4 = r.json_get('doc', '$.a[?@ anyof [1,2,3]]')
p res4 # >>> [[1, 9]]

res5 = r.json_set('doc', '$', { 'a' => [[4, 5], [1, 9], []] })
puts res5 # >>> OK

res6 = r.json_get('doc', '$.a[?@ noneof [1,2,3]]')
p res6 # >>> [[4, 5], []]
        match r.json_set("doc", "$", &json!({"a":[[1,2],[1,5],[]]})) {
            Ok(res17) => {
                let res17: bool = res17;
                println!("{}", if res17 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?@ subsetof [1,2,3]]") {
            Ok(res18) => {
                let res18: String = res18;
                println!("{res18}");    // >>> [[1,2],[]]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_set("doc", "$", &json!({"a":[[1,9],[8,9],[]]})) {
            Ok(res19) => {
                let res19: bool = res19;
                println!("{}", if res19 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?@ anyof [1,2,3]]") {
            Ok(res20) => {
                let res20: String = res20;
                println!("{res20}");    // >>> [[1,9]]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_set("doc", "$", &json!({"a":[[4,5],[1,9],[]]})) {
            Ok(res21) => {
                let res21: bool = res21;
                println!("{}", if res21 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?@ noneof [1,2,3]]") {
            Ok(res22) => {
                let res22: String = res22;
                println!("{res22}");    // >>> [[4,5],[]]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!({"a":[[1,2],[1,5],[]]})).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.a[?@ subsetof [1,2,3]]").await {
            Ok(res13) => {
                let res13: String = res13;
                println!("{res13}");    // >>> [[1,2],[]]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!({"a":[[1,9],[8,9],[]]})).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.a[?@ anyof [1,2,3]]").await {
            Ok(res14) => {
                let res14: String = res14;
                println!("{res14}");    // >>> [[1,9]]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!({"a":[[4,5],[1,9],[]]})).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.a[?@ noneof [1,2,3]]").await {
            Ok(res15) => {
                let res15: String = res15;
                println!("{res15}");    // >>> [[4,5],[]]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

size (sizeof) and empty

left sizeof n matches when the size of left equals the integer n, where size is the number of characters in a string, the number of elements in an array, or the number of members in an object. A non-integer n is truncated toward zero; a non-numeric n never matches. size is an alias for sizeof.

left empty true matches an empty string, array, or object; left empty false matches a non-empty one.

Size and emptiness filters: Use sizeof and empty to filter by the size or emptiness of a string, array, or object
> JSON.SET doc $ '{"a":[[4,5],[1],[7,8,9]]}'
OK
> JSON.GET doc '$.a[?@ sizeof 2]'
"[[4,5]]"
> JSON.SET doc $ '{"a":[[],[1],"",[2,3],{},{"k":1}]}'
OK
> JSON.GET doc '$.a[?@ empty true]'
"[[],\"\",{}]"
> JSON.GET doc '$.a[?@ empty false]'
"[[1],[2,3],{\"k\":1}]"
res1 = r.json().set("doc", "$", {"a": [[4, 5], [1], [7, 8, 9]]})
print(res1)
# >>> True

res2 = r.json().get("doc", "$.a[?@ sizeof 2]")
print(res2)
# >>> [[4, 5]]

res3 = r.json().set("doc", "$", {"a": [[], [1], "", [2, 3], {}, {"k": 1}]})
print(res3)
# >>> True

res4 = r.json().get("doc", "$.a[?@ empty true]")
print(res4)
# >>> [[], '', {}]

res5 = r.json().get("doc", "$.a[?@ empty false]")
print(res5)
# >>> [[1], [2, 3], {'k': 1}]
const res23 = await client.json.set('doc', '$', { a: [[4, 5], [1], [7, 8, 9]] });
console.log(res23); // >>> OK

const res24 = await client.json.get('doc', { path: '$.a[?@ sizeof 2]' });
console.log(res24); // >>> [ [ 4, 5 ] ]

const res25 = await client.json.set('doc', '$', { a: [[], [1], '', [2, 3], {}, { k: 1 }] });
console.log(res25); // >>> OK

const res26 = await client.json.get('doc', { path: '$.a[?@ empty true]' });
console.log(res26); // >>> [ [], '', {} ]

const res27 = await client.json.get('doc', { path: '$.a[?@ empty false]' });
console.log(res27); // >>> [ [ 1 ], [ 2, 3 ], { k: 1 } ]
        String res23 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":[[4,5],[1],[7,8,9]]}");
        System.out.println(res23);    // >>> OK

        Object res24 = jedis.jsonGet("doc", new Path2("$.a[?@ sizeof 2]"));
        System.out.println(res24);    // >>> [[4,5]]

        String res25 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":[[],[1],\"\",[2,3],{},{\"k\":1}]}");
        System.out.println(res25);    // >>> OK

        Object res26 = jedis.jsonGet("doc", new Path2("$.a[?@ empty true]"));
        System.out.println(res26);    // >>> [[],"",{}]

        Object res27 = jedis.jsonGet("doc", new Path2("$.a[?@ empty false]"));
        System.out.println(res27);    // >>> [[1],[2,3],{"k":1}]
            CompletableFuture<Void> filterSizeEmptyExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("{\"a\":[[4,5],[1],[7,8,9]]}"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?@ sizeof 2]"));
                    }).thenCompose(res2 -> {
                        System.out.println(res2); // >>> [[[4,5]]]
                        return asyncCommands.jsonSet("doc", JsonPath.ROOT_PATH,
                                parser.createJsonValue("{\"a\":[[],[1],\"\",[2,3],{},{\"k\":1}]}"));
                    }).thenCompose(res3 -> {
                        System.out.println(res3); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?@ empty true]"));
                    }).thenCompose(res4 -> {
                        System.out.println(res4); // >>> [[[],"",{}]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?@ empty false]"));
                    }).thenAccept(res5 -> {
                        System.out.println(res5); // >>> [[[1],[2,3],{"k":1}]]
                    }).toCompletableFuture();
            Mono<Void> filterSizeEmptyExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("{\"a\":[[4,5],[1],[7,8,9]]}"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?@ sizeof 2]")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[[4,5]]]
                    })
                    .flatMap(res2 -> reactiveCommands.jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":[[],[1],\"\",[2,3],{},{\"k\":1}]}")))
                    .doOnNext(res3 -> {
                        System.out.println(res3); // >>> OK
                    })
                    .flatMap(res3 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?@ empty true]")).collectList())
                    .doOnNext(res4 -> {
                        System.out.println(res4); // >>> [[[],"",{}]]
                    })
                    .flatMap(res4 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?@ empty false]")).collectList())
                    .doOnNext(res5 -> {
                        System.out.println(res5); // >>> [[[1],[2,3],{"k":1}]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":[[4,5],[1],[7,8,9]]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$.a[?@ sizeof 2]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [[4,5]]

	res3, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":[[],[1],"",[2,3],{},{"k":1}]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res3) // >>> OK

	res4, err := rdb.JSONGet(ctx, "doc", `$.a[?@ empty true]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res4) // >>> [[],"",{}]

	res5, err := rdb.JSONGet(ctx, "doc", `$.a[?@ empty false]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res5) // >>> [[1],[2,3],{"k":1}]
        bool res23 = db.JSON().Set("doc", "$", "{\"a\":[[4,5],[1],[7,8,9]]}");
        Console.WriteLine(res23);   // >>> True

        RedisResult res24 = db.JSON().Get("doc", path: "$.a[?@ sizeof 2]");
        Console.WriteLine(res24);   // >>> [[4,5]]

        bool res25 = db.JSON().Set("doc", "$", "{\"a\":[[],[1],\"\",[2,3],{},{\"k\":1}]}");
        Console.WriteLine(res25);   // >>> True

        RedisResult res26 = db.JSON().Get("doc", path: "$.a[?@ empty true]");
        Console.WriteLine(res26);   // >>> [[],"",{}]

        RedisResult res27 = db.JSON().Get("doc", path: "$.a[?@ empty false]");
        Console.WriteLine(res27);   // >>> [[1],[2,3],{"k":1}]
        $res23 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => [[4, 5], [1], [7, 8, 9]]]
        ));
        echo $res23 . PHP_EOL; // >>> OK

        $res24 = $this->redis->jsonget('doc', '', '', '', '$.a[?@ sizeof 2]');
        echo $res24 . PHP_EOL; // >>> [[4,5]]

        $res25 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => [[], [1], "", [2, 3], new \stdClass(), ["k" => 1]]]
        ));
        echo $res25 . PHP_EOL; // >>> OK

        $res26 = $this->redis->jsonget('doc', '', '', '', '$.a[?@ empty true]');
        echo $res26 . PHP_EOL; // >>> [[],"",{}]

        $res27 = $this->redis->jsonget('doc', '', '', '', '$.a[?@ empty false]');
        echo $res27 . PHP_EOL; // >>> [[1],[2,3],{"k":1}]
res1 = r.json_set('doc', '$', { 'a' => [[4, 5], [1], [7, 8, 9]] })
puts res1 # >>> OK

res2 = r.json_get('doc', '$.a[?@ sizeof 2]')
p res2 # >>> [[4, 5]]

res3 = r.json_set('doc', '$', { 'a' => [[], [1], '', [2, 3], {}, { 'k' => 1 }] })
puts res3 # >>> OK

res4 = r.json_get('doc', '$.a[?@ empty true]')
p res4 # >>> [[], "", {}]

res5 = r.json_get('doc', '$.a[?@ empty false]')
p res5 # >>> [[1], [2, 3], {"k"=>1}]
        match r.json_set("doc", "$", &json!({"a":[[4,5],[1],[7,8,9]]})) {
            Ok(res23) => {
                let res23: bool = res23;
                println!("{}", if res23 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?@ sizeof 2]") {
            Ok(res24) => {
                let res24: String = res24;
                println!("{res24}");    // >>> [[4,5]]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_set("doc", "$", &json!({"a":[[],[1],"",[2,3],{},{"k":1}]})) {
            Ok(res25) => {
                let res25: bool = res25;
                println!("{}", if res25 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?@ empty true]") {
            Ok(res26) => {
                let res26: String = res26;
                println!("{res26}");    // >>> [[],"",{}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?@ empty false]") {
            Ok(res27) => {
                let res27: String = res27;
                println!("{res27}");    // >>> [[1],[2,3],{"k":1}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!({"a":[[4,5],[1],[7,8,9]]})).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.a[?@ sizeof 2]").await {
            Ok(res16) => {
                let res16: String = res16;
                println!("{res16}");    // >>> [[4,5]]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!({"a":[[],[1],"",[2,3],{},{"k":1}]})).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.a[?@ empty true]").await {
            Ok(res17) => {
                let res17: String = res17;
                println!("{res17}");    // >>> [[],"",{}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?@ empty false]").await {
            Ok(res18) => {
                let res18: String = res18;
                println!("{res18}");    // >>> [[1],[2,3],{"k":1}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

Get-keys operator ~

The terminal ~ operator returns the member names of an object as a flat list of strings. Applied to the root ($~), it returns the top-level keys. Applied to a multiple-match receiver, it flattens the keys of every matched object. A non-object receiver contributes no keys.

Because ~ is terminal, expressions such as $.obj~.x, $.obj~~, and $.obj.keys()~ are parse errors. For a composable alternative that can be chained with other functions, use the keys() function.

Get-keys filter: Use the ~ operator to retrieve an object's member names as a list of strings
> JSON.SET doc $ '{"obj":{"x":1,"y":2},"books":[{"t":"a"},{"t":"b"}]}'
OK
> JSON.GET doc '$.obj~'
"[\"x\",\"y\"]"
> JSON.GET doc '$~'
"[\"obj\",\"books\"]"
> JSON.GET doc '$.books~'
"[]"
res1 = r.json().set("doc", "$", {"obj": {"x": 1, "y": 2}, "books": [{"t": "a"}, {"t": "b"}]})
print(res1)
# >>> True

res2 = r.json().get("doc", "$.obj~")
print(res2)
# >>> ['x', 'y']

res3 = r.json().get("doc", "$~")
print(res3)
# >>> ['obj', 'books']

res4 = r.json().get("doc", "$.books~")
print(res4)
# >>> []
const res28 = await client.json.set('doc', '$', {
  obj: { x: 1, y: 2 },
  books: [{ t: 'a' }, { t: 'b' }]
});
console.log(res28); // >>> OK

const res29 = await client.json.get('doc', { path: '$.obj~' });
console.log(res29); // >>> [ 'x', 'y' ]

const res30 = await client.json.get('doc', { path: '$~' });
console.log(res30); // >>> [ 'obj', 'books' ]

const res31 = await client.json.get('doc', { path: '$.books~' });
console.log(res31); // >>> []
        String res28 = jedis.jsonSet(
            "doc",
            new Path2("$"),
            "{\"obj\":{\"x\":1,\"y\":2},\"books\":[{\"t\":\"a\"},{\"t\":\"b\"}]}"
        );
        System.out.println(res28);    // >>> OK

        Object res29 = jedis.jsonGet("doc", new Path2("$.obj~"));
        System.out.println(res29);    // >>> ["x","y"]

        Object res30 = jedis.jsonGet("doc", new Path2("$~"));
        System.out.println(res30);    // >>> ["obj","books"]

        Object res31 = jedis.jsonGet("doc", new Path2("$.books~"));
        System.out.println(res31);    // >>> []
            CompletableFuture<Void> filterGetkeysExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue(
                                    "{\"obj\":{\"x\":1,\"y\":2},\"books\":[{\"t\":\"a\"},{\"t\":\"b\"}]}"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.obj~"));
                    }).thenCompose(res2 -> {
                        System.out.println(res2); // >>> [["x","y"]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$~"));
                    }).thenCompose(res3 -> {
                        System.out.println(res3); // >>> [["obj","books"]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.books~"));
                    }).thenAccept(res4 -> {
                        System.out.println(res4); // >>> [[]]
                    }).toCompletableFuture();
            Mono<Void> filterGetkeysExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"obj\":{\"x\":1,\"y\":2},\"books\":[{\"t\":\"a\"},{\"t\":\"b\"}]}"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.obj~")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [["x","y"]]
                    })
                    .flatMap(res2 -> reactiveCommands.jsonGet("doc", JsonPath.of("$~")).collectList())
                    .doOnNext(res3 -> {
                        System.out.println(res3); // >>> [["obj","books"]]
                    })
                    .flatMap(res3 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.books~")).collectList())
                    .doOnNext(res4 -> {
                        System.out.println(res4); // >>> [[]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`{"obj":{"x":1,"y":2},"books":[{"t":"a"},{"t":"b"}]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$.obj~`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> ["x","y"]

	res3, err := rdb.JSONGet(ctx, "doc", `$~`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res3) // >>> ["obj","books"]

	res4, err := rdb.JSONGet(ctx, "doc", `$.books~`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res4) // >>> []
        bool res28 = db.JSON().Set(
            "doc",
            "$",
            "{\"obj\":{\"x\":1,\"y\":2},\"books\":[{\"t\":\"a\"},{\"t\":\"b\"}]}"
        );
        Console.WriteLine(res28);   // >>> True

        RedisResult res29 = db.JSON().Get("doc", path: "$.obj~");
        Console.WriteLine(res29);   // >>> ["x","y"]

        RedisResult res30 = db.JSON().Get("doc", path: "$~");
        Console.WriteLine(res30);   // >>> ["obj","books"]

        RedisResult res31 = db.JSON().Get("doc", path: "$.books~");
        Console.WriteLine(res31);   // >>> []
        $res28 = $this->redis->jsonset('doc', '$', json_encode([
            "obj" => ["x" => 1, "y" => 2],
            "books" => [["t" => "a"], ["t" => "b"]],
        ]));
        echo $res28 . PHP_EOL; // >>> OK

        $res29 = $this->redis->jsonget('doc', '', '', '', '$.obj~');
        echo $res29 . PHP_EOL; // >>> ["x","y"]

        $res30 = $this->redis->jsonget('doc', '', '', '', '$~');
        echo $res30 . PHP_EOL; // >>> ["obj","books"]

        $res31 = $this->redis->jsonget('doc', '', '', '', '$.books~');
        echo $res31 . PHP_EOL; // >>> []
res1 = r.json_set('doc', '$', { 'obj' => { 'x' => 1, 'y' => 2 }, 'books' => [{ 't' => 'a' }, { 't' => 'b' }] })
puts res1 # >>> OK

res2 = r.json_get('doc', '$.obj~')
p res2 # >>> ["x", "y"]

res3 = r.json_get('doc', '$~')
p res3 # >>> ["obj", "books"]

res4 = r.json_get('doc', '$.books~')
p res4 # >>> []
        match r.json_set(
            "doc",
            "$",
            &json!({"obj":{"x":1,"y":2},"books":[{"t":"a"},{"t":"b"}]}),
        ) {
            Ok(res28) => {
                let res28: bool = res28;
                println!("{}", if res28 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.obj~") {
            Ok(res29) => {
                let res29: String = res29;
                println!("{res29}");    // >>> ["x","y"]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$~") {
            Ok(res30) => {
                let res30: String = res30;
                println!("{res30}");    // >>> ["obj","books"]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.books~") {
            Ok(res31) => {
                let res31: String = res31;
                println!("{res31}");    // >>> []
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set(
            "doc",
            "$",
            &json!({"obj":{"x":1,"y":2},"books":[{"t":"a"},{"t":"b"}]}),
        ).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.obj~").await {
            Ok(res19) => {
                let res19: String = res19;
                println!("{res19}");    // >>> ["x","y"]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$~").await {
            Ok(res20) => {
                let res20: String = res20;
                println!("{res20}");    // >>> ["obj","books"]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.books~").await {
            Ok(res21) => {
                let res21: String = res21;
                println!("{res21}");    // >>> []
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

Functions can appear inside filter expressions and, when they return a value, as top-level projection expressions. Beginning with Redis 8.10, JSONPath supports the following functions.

length()

Returns the number of characters in a string, elements in an array, or members in an object. Any other type produces Nothing.

Length function: Use length() to get the number of characters in a string, elements in an array, or members in an object
> JSON.SET doc $ '{"a":[[1,2,3],[1],"abcd","x"]}'
OK
> JSON.GET doc '$.a[?length(@) > 2]'
"[[1,2,3],\"abcd\"]"
res1 = r.json().set("doc", "$", {"a": [[1, 2, 3], [1], "abcd", "x"]})
print(res1)
# >>> True

res2 = r.json().get("doc", "$.a[?length(@) > 2]")
print(res2)
# >>> [[1, 2, 3], 'abcd']
const res32 = await client.json.set('doc', '$', { a: [[1, 2, 3], [1], 'abcd', 'x'] });
console.log(res32); // >>> OK

const res33 = await client.json.get('doc', { path: '$.a[?length(@) > 2]' });
console.log(res33); // >>> [ [ 1, 2, 3 ], 'abcd' ]
        String res32 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":[[1,2,3],[1],\"abcd\",\"x\"]}");
        System.out.println(res32);    // >>> OK

        Object res33 = jedis.jsonGet("doc", new Path2("$.a[?length(@) > 2]"));
        System.out.println(res33);    // >>> [[1,2,3],"abcd"]
            CompletableFuture<Void> funcLengthExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":[[1,2,3],[1],\"abcd\",\"x\"]}"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?length(@) > 2]"));
                    }).thenAccept(res2 -> {
                        System.out.println(res2); // >>> [[[1,2,3],"abcd"]]
                    }).toCompletableFuture();
            Mono<Void> funcLengthExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":[[1,2,3],[1],\"abcd\",\"x\"]}"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?length(@) > 2]")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[[1,2,3],"abcd"]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":[[1,2,3],[1],"abcd","x"]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$.a[?length(@) > 2]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [[1,2,3],"abcd"]
        bool res32 = db.JSON().Set("doc", "$", "{\"a\":[[1,2,3],[1],\"abcd\",\"x\"]}");
        Console.WriteLine(res32);   // >>> True

        RedisResult res33 = db.JSON().Get("doc", path: "$.a[?length(@) > 2]");
        Console.WriteLine(res33);   // >>> [[1,2,3],"abcd"]
        $res32 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => [[1, 2, 3], [1], "abcd", "x"]]
        ));
        echo $res32 . PHP_EOL; // >>> OK

        $res33 = $this->redis->jsonget('doc', '', '', '', '$.a[?length(@) > 2]');
        echo $res33 . PHP_EOL; // >>> [[1,2,3],"abcd"]
res1 = r.json_set('doc', '$', { 'a' => [[1, 2, 3], [1], 'abcd', 'x'] })
puts res1 # >>> OK

res2 = r.json_get('doc', '$.a[?length(@) > 2]')
p res2 # >>> [[1, 2, 3], "abcd"]
        match r.json_set("doc", "$", &json!({"a":[[1,2,3],[1],"abcd","x"]})) {
            Ok(res32) => {
                let res32: bool = res32;
                println!("{}", if res32 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?length(@) > 2]") {
            Ok(res33) => {
                let res33: String = res33;
                println!("{res33}");    // >>> [[1,2,3],"abcd"]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!({"a":[[1,2,3],[1],"abcd","x"]})).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.a[?length(@) > 2]").await {
            Ok(res1) => {
                let res1: String = res1;
                println!("{res1}");    // >>> [[1,2,3],"abcd"]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

count()

Returns the number of nodes selected by a query. An absent path counts as 0; a single node counts as 1.

Count function: Use count() to get the number of nodes selected by a query
> JSON.SET doc $ '[{"a":1,"b":2,"c":3},{"a":1}]'
OK
> JSON.GET doc '$[?count(@.*) == 3]'
"[{\"a\":1,\"b\":2,\"c\":3}]"
res1 = r.json().set("doc", "$", [{"a": 1, "b": 2, "c": 3}, {"a": 1}])
print(res1)
# >>> True

res2 = r.json().get("doc", "$[?count(@.*) == 3]")
print(res2)
# >>> [{'a': 1, 'b': 2, 'c': 3}]
const res34 = await client.json.set('doc', '$', [{ a: 1, b: 2, c: 3 }, { a: 1 }]);
console.log(res34); // >>> OK

const res35 = await client.json.get('doc', { path: '$[?count(@.*) == 3]' });
console.log(res35); // >>> [ { a: 1, b: 2, c: 3 } ]
        String res34 = jedis.jsonSet("doc", new Path2("$"), "[{\"a\":1,\"b\":2,\"c\":3},{\"a\":1}]");
        System.out.println(res34);    // >>> OK

        Object res35 = jedis.jsonGet("doc", new Path2("$[?count(@.*) == 3]"));
        System.out.println(res35);    // >>> [{"a":1,"b":2,"c":3}]
            CompletableFuture<Void> funcCountExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("[{\"a\":1,\"b\":2,\"c\":3},{\"a\":1}]"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$[?count(@.*) == 3]"));
                    }).thenAccept(res2 -> {
                        System.out.println(res2); // >>> [[{"a":1,"b":2,"c":3}]]
                    }).toCompletableFuture();
            Mono<Void> funcCountExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("[{\"a\":1,\"b\":2,\"c\":3},{\"a\":1}]"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$[?count(@.*) == 3]")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[{"a":1,"b":2,"c":3}]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`[{"a":1,"b":2,"c":3},{"a":1}]`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$[?count(@.*) == 3]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [{"a":1,"b":2,"c":3}]
        bool res34 = db.JSON().Set("doc", "$", "[{\"a\":1,\"b\":2,\"c\":3},{\"a\":1}]");
        Console.WriteLine(res34);   // >>> True

        RedisResult res35 = db.JSON().Get("doc", path: "$[?count(@.*) == 3]");
        Console.WriteLine(res35);   // >>> [{"a":1,"b":2,"c":3}]
        $res34 = $this->redis->jsonset('doc', '$', json_encode(
            [["a" => 1, "b" => 2, "c" => 3], ["a" => 1]]
        ));
        echo $res34 . PHP_EOL; // >>> OK

        $res35 = $this->redis->jsonget('doc', '', '', '', '$[?count(@.*) == 3]');
        echo $res35 . PHP_EOL; // >>> [{"a":1,"b":2,"c":3}]
res1 = r.json_set('doc', '$', [{ 'a' => 1, 'b' => 2, 'c' => 3 }, { 'a' => 1 }])
puts res1 # >>> OK

res2 = r.json_get('doc', '$[?count(@.*) == 3]')
p res2 # >>> [{"a"=>1, "b"=>2, "c"=>3}]
        match r.json_set("doc", "$", &json!([{"a":1,"b":2,"c":3},{"a":1}])) {
            Ok(res34) => {
                let res34: bool = res34;
                println!("{}", if res34 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$[?count(@.*) == 3]") {
            Ok(res35) => {
                let res35: String = res35;
                println!("{res35}");    // >>> [{"a":1,"b":2,"c":3}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!([{"a":1,"b":2,"c":3},{"a":1}])).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$[?count(@.*) == 3]").await {
            Ok(res1) => {
                let res1: String = res1;
                println!("{res1}");    // >>> [{"a":1,"b":2,"c":3}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

value()

Returns the value of a query that selects exactly one node. A query that selects zero or more than one node produces Nothing.

Value function: Use value() to get the value of a query that selects exactly one node
> JSON.SET doc $ '[{"a":1},{"a":2}]'
OK
> JSON.GET doc '$[?value(@.a) == 1]'
"[{\"a\":1}]"
res1 = r.json().set("doc", "$", [{"a": 1}, {"a": 2}])
print(res1)
# >>> True

res2 = r.json().get("doc", "$[?value(@.a) == 1]")
print(res2)
# >>> [{'a': 1}]
const res36 = await client.json.set('doc', '$', [{ a: 1 }, { a: 2 }]);
console.log(res36); // >>> OK

const res37 = await client.json.get('doc', { path: '$[?value(@.a) == 1]' });
console.log(res37); // >>> [ { a: 1 } ]
        String res36 = jedis.jsonSet("doc", new Path2("$"), "[{\"a\":1},{\"a\":2}]");
        System.out.println(res36);    // >>> OK

        Object res37 = jedis.jsonGet("doc", new Path2("$[?value(@.a) == 1]"));
        System.out.println(res37);    // >>> [{"a":1}]
            CompletableFuture<Void> funcValueExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("[{\"a\":1},{\"a\":2}]"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$[?value(@.a) == 1]"));
                    }).thenAccept(res2 -> {
                        System.out.println(res2); // >>> [[{"a":1}]]
                    }).toCompletableFuture();
            Mono<Void> funcValueExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("[{\"a\":1},{\"a\":2}]"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$[?value(@.a) == 1]")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[{"a":1}]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`[{"a":1},{"a":2}]`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$[?value(@.a) == 1]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [{"a":1}]
        bool res36 = db.JSON().Set("doc", "$", "[{\"a\":1},{\"a\":2}]");
        Console.WriteLine(res36);   // >>> True

        RedisResult res37 = db.JSON().Get("doc", path: "$[?value(@.a) == 1]");
        Console.WriteLine(res37);   // >>> [{"a":1}]
        $res36 = $this->redis->jsonset('doc', '$', json_encode(
            [["a" => 1], ["a" => 2]]
        ));
        echo $res36 . PHP_EOL; // >>> OK

        $res37 = $this->redis->jsonget('doc', '', '', '', '$[?value(@.a) == 1]');
        echo $res37 . PHP_EOL; // >>> [{"a":1}]
res1 = r.json_set('doc', '$', [{ 'a' => 1 }, { 'a' => 2 }])
puts res1 # >>> OK

res2 = r.json_get('doc', '$[?value(@.a) == 1]')
p res2 # >>> [{"a"=>1}]
        match r.json_set("doc", "$", &json!([{"a":1},{"a":2}])) {
            Ok(res36) => {
                let res36: bool = res36;
                println!("{}", if res36 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$[?value(@.a) == 1]") {
            Ok(res37) => {
                let res37: String = res37;
                println!("{res37}");    // >>> [{"a":1}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!([{"a":1},{"a":2}])).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$[?value(@.a) == 1]").await {
            Ok(res1) => {
                let res1: String = res1;
                println!("{res1}");    // >>> [{"a":1}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

keys()

Returns the member names of an object as a list of strings, like the ~ operator. Unlike ~, keys() is composable and can be chained with other functions.

Keys function: Use keys() to get an object's member names as a composable, chainable list of strings
> JSON.SET doc $ '{"obj":{"x":1,"y":2}}'
OK
> JSON.GET doc '$.obj.keys()'
"[\"x\",\"y\"]"
> JSON.GET doc '$.obj.keys().count()'
"[2]"
res1 = r.json().set("doc", "$", {"obj": {"x": 1, "y": 2}})
print(res1)
# >>> True

res2 = r.json().get("doc", "$.obj.keys()")
print(res2)
# >>> ['x', 'y']

res3 = r.json().get("doc", "$.obj.keys().count()")
print(res3)
# >>> [2]
const res38 = await client.json.set('doc', '$', { obj: { x: 1, y: 2 } });
console.log(res38); // >>> OK

const res39 = await client.json.get('doc', { path: '$.obj.keys()' });
console.log(res39); // >>> [ 'x', 'y' ]

const res40 = await client.json.get('doc', { path: '$.obj.keys().count()' });
console.log(res40); // >>> [ 2 ]
        String res38 = jedis.jsonSet("doc", new Path2("$"), "{\"obj\":{\"x\":1,\"y\":2}}");
        System.out.println(res38);    // >>> OK

        Object res39 = jedis.jsonGet("doc", new Path2("$.obj.keys()"));
        System.out.println(res39);    // >>> ["x","y"]

        Object res40 = jedis.jsonGet("doc", new Path2("$.obj.keys().count()"));
        System.out.println(res40);    // >>> [2]
            CompletableFuture<Void> funcKeysExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("{\"obj\":{\"x\":1,\"y\":2}}"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.obj.keys()"));
                    }).thenCompose(res2 -> {
                        System.out.println(res2); // >>> [["x","y"]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.obj.keys().count()"));
                    }).thenAccept(res3 -> {
                        System.out.println(res3); // >>> [[2]]
                    }).toCompletableFuture();
            Mono<Void> funcKeysExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("{\"obj\":{\"x\":1,\"y\":2}}"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.obj.keys()")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [["x","y"]]
                    })
                    .flatMap(res2 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.obj.keys().count()")).collectList())
                    .doOnNext(res3 -> {
                        System.out.println(res3); // >>> [[2]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`{"obj":{"x":1,"y":2}}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$.obj.keys()`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> ["x","y"]

	res3, err := rdb.JSONGet(ctx, "doc", `$.obj.keys().count()`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res3) // >>> [2]
        bool res38 = db.JSON().Set("doc", "$", "{\"obj\":{\"x\":1,\"y\":2}}");
        Console.WriteLine(res38);   // >>> True

        RedisResult res39 = db.JSON().Get("doc", path: "$.obj.keys()");
        Console.WriteLine(res39);   // >>> ["x","y"]

        RedisResult res40 = db.JSON().Get("doc", path: "$.obj.keys().count()");
        Console.WriteLine(res40);   // >>> [2]
        $res38 = $this->redis->jsonset('doc', '$', json_encode(
            ["obj" => ["x" => 1, "y" => 2]]
        ));
        echo $res38 . PHP_EOL; // >>> OK

        $res39 = $this->redis->jsonget('doc', '', '', '', '$.obj.keys()');
        echo $res39 . PHP_EOL; // >>> ["x","y"]

        $res40 = $this->redis->jsonget('doc', '', '', '', '$.obj.keys().count()');
        echo $res40 . PHP_EOL; // >>> [2]
res1 = r.json_set('doc', '$', { 'obj' => { 'x' => 1, 'y' => 2 } })
puts res1 # >>> OK

res2 = r.json_get('doc', '$.obj.keys()')
p res2 # >>> ["x", "y"]

res3 = r.json_get('doc', '$.obj.keys().count()')
p res3 # >>> [2]
        match r.json_set("doc", "$", &json!({"obj":{"x":1,"y":2}})) {
            Ok(res38) => {
                let res38: bool = res38;
                println!("{}", if res38 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.obj.keys()") {
            Ok(res39) => {
                let res39: String = res39;
                println!("{res39}");    // >>> ["x","y"]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.obj.keys().count()") {
            Ok(res40) => {
                let res40: String = res40;
                println!("{res40}");    // >>> [2]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!({"obj":{"x":1,"y":2}})).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.obj.keys()").await {
            Ok(res1) => {
                let res1: String = res1;
                println!("{res1}");    // >>> ["x","y"]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.obj.keys().count()").await {
            Ok(res2) => {
                let res2: String = res2;
                println!("{res2}");    // >>> [2]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

Both test a string against a regular expression pattern (RFC 9485 I-Regexp). match() requires the whole string to match (anchored), while search() matches any substring (the same behavior as the =~ operator). An invalid pattern produces no match.

concat()

Concatenates its string arguments into a single string. It requires at least one argument, and any non-string argument produces Nothing.

Concat function: Use concat() to join string arguments into a single string for comparison in a filter
> JSON.SET doc $ '{"a":[{"x":"a","y":"b"},{"x":"a","y":"c"}]}'
OK
> JSON.GET doc '$.a[?concat(@.x, @.y) == "ab"]'
"[{\"x\":\"a\",\"y\":\"b\"}]"
res1 = r.json().set("doc", "$", {"a": [{"x": "a", "y": "b"}, {"x": "a", "y": "c"}]})
print(res1)
# >>> True

res2 = r.json().get("doc", '$.a[?concat(@.x, @.y) == "ab"]')
print(res2)
# >>> [{'x': 'a', 'y': 'b'}]
const res45 = await client.json.set('doc', '$', { a: [{ x: 'a', y: 'b' }, { x: 'a', y: 'c' }] });
console.log(res45); // >>> OK

const res46 = await client.json.get('doc', { path: '$.a[?concat(@.x, @.y) == "ab"]' });
console.log(res46); // >>> [ { x: 'a', y: 'b' } ]
        String res45 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":[{\"x\":\"a\",\"y\":\"b\"},{\"x\":\"a\",\"y\":\"c\"}]}");
        System.out.println(res45);    // >>> OK

        Object res46 = jedis.jsonGet("doc", new Path2("$.a[?concat(@.x, @.y) == \"ab\"]"));
        System.out.println(res46);    // >>> [{"x":"a","y":"b"}]
            CompletableFuture<Void> funcConcatExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":[{\"x\":\"a\",\"y\":\"b\"},{\"x\":\"a\",\"y\":\"c\"}]}"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?concat(@.x, @.y) == \"ab\"]"));
                    }).thenAccept(res2 -> {
                        System.out.println(res2); // >>> [[{"x":"a","y":"b"}]]
                    }).toCompletableFuture();
            Mono<Void> funcConcatExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":[{\"x\":\"a\",\"y\":\"b\"},{\"x\":\"a\",\"y\":\"c\"}]}"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?concat(@.x, @.y) == \"ab\"]"))
                            .collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[{"x":"a","y":"b"}]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":[{"x":"a","y":"b"},{"x":"a","y":"c"}]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$.a[?concat(@.x, @.y) == "ab"]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [{"x":"a","y":"b"}]
        bool res45 = db.JSON().Set("doc", "$", "{\"a\":[{\"x\":\"a\",\"y\":\"b\"},{\"x\":\"a\",\"y\":\"c\"}]}");
        Console.WriteLine(res45);   // >>> True

        RedisResult res46 = db.JSON().Get("doc", path: "$.a[?concat(@.x, @.y) == \"ab\"]");
        Console.WriteLine(res46);   // >>> [{"x":"a","y":"b"}]
        $res45 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => [["x" => "a", "y" => "b"], ["x" => "a", "y" => "c"]]]
        ));
        echo $res45 . PHP_EOL; // >>> OK

        $res46 = $this->redis->jsonget('doc', '', '', '', '$.a[?concat(@.x, @.y) == "ab"]');
        echo $res46 . PHP_EOL; // >>> [{"x":"a","y":"b"}]
res1 = r.json_set('doc', '$', { 'a' => [{ 'x' => 'a', 'y' => 'b' }, { 'x' => 'a', 'y' => 'c' }] })
puts res1 # >>> OK

res2 = r.json_get('doc', '$.a[?concat(@.x, @.y) == "ab"]')
p res2 # >>> [{"x"=>"a", "y"=>"b"}]
        match r.json_set("doc", "$", &json!({"a":[{"x":"a","y":"b"},{"x":"a","y":"c"}]})) {
            Ok(res45) => {
                let res45: bool = res45;
                println!("{}", if res45 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", r#"$.a[?concat(@.x, @.y) == "ab"]"#) {
            Ok(res46) => {
                let res46: String = res46;
                println!("{res46}");    // >>> [{"x":"a","y":"b"}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set(
            "doc",
            "$",
            &json!({"a":[{"x":"a","y":"b"},{"x":"a","y":"c"}]}),
        ).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", r#"$.a[?concat(@.x, @.y) == "ab"]"#).await {
            Ok(res1) => {
                let res1: String = res1;
                println!("{res1}");    // >>> [{"x":"a","y":"b"}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

abs(), ceiling(), and floor()

Operate on a number: abs() returns the absolute value, ceiling() rounds up to the nearest integer, and floor() rounds down. An integer argument stays an integer and a floating-point argument stays a float. A result that overflows the signed 64-bit integer range produces Nothing.

Numeric functions: Use abs(), ceiling(), and floor() to transform a number before comparing it in a filter
> JSON.SET doc $ '{"a":[2.1,3.9,1.0]}'
OK
> JSON.GET doc '$.a[?ceiling(@) == 3]'
"[2.1]"
> JSON.SET doc $ '{"a":[2.1,2.9,3.5]}'
OK
> JSON.GET doc '$.a[?floor(@) == 2]'
"[2.1,2.9]"
> JSON.SET doc $ '{"a":[{"n":-5},{"n":5},{"n":-3}]}'
OK
> JSON.GET doc '$.a[?abs(@.n) == 5]'
"[{\"n\":-5},{\"n\":5}]"
res1 = r.json().set("doc", "$", {"a": [2.1, 3.9, 1.0]})
print(res1)
# >>> True

res2 = r.json().get("doc", "$.a[?ceiling(@) == 3]")
print(res2)
# >>> [2.1]

res3 = r.json().set("doc", "$", {"a": [2.1, 2.9, 3.5]})
print(res3)
# >>> True

res4 = r.json().get("doc", "$.a[?floor(@) == 2]")
print(res4)
# >>> [2.1, 2.9]

res5 = r.json().set("doc", "$", {"a": [{"n": -5}, {"n": 5}, {"n": -3}]})
print(res5)
# >>> True

res6 = r.json().get("doc", "$.a[?abs(@.n) == 5]")
print(res6)
# >>> [{'n': -5}, {'n': 5}]
const res47 = await client.json.set('doc', '$', { a: [2.1, 3.9, 1.0] });
console.log(res47); // >>> OK

const res48 = await client.json.get('doc', { path: '$.a[?ceiling(@) == 3]' });
console.log(res48); // >>> [ 2.1 ]

const res49 = await client.json.set('doc', '$', { a: [2.1, 2.9, 3.5] });
console.log(res49); // >>> OK

const res50 = await client.json.get('doc', { path: '$.a[?floor(@) == 2]' });
console.log(res50); // >>> [ 2.1, 2.9 ]

const res51 = await client.json.set('doc', '$', { a: [{ n: -5 }, { n: 5 }, { n: -3 }] });
console.log(res51); // >>> OK

const res52 = await client.json.get('doc', { path: '$.a[?abs(@.n) == 5]' });
console.log(res52); // >>> [ { n: -5 }, { n: 5 } ]
        String res47 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":[2.1,3.9,1.0]}");
        System.out.println(res47);    // >>> OK

        Object res48 = jedis.jsonGet("doc", new Path2("$.a[?ceiling(@) == 3]"));
        System.out.println(res48);    // >>> [2.1]

        String res49 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":[2.1,2.9,3.5]}");
        System.out.println(res49);    // >>> OK

        Object res50 = jedis.jsonGet("doc", new Path2("$.a[?floor(@) == 2]"));
        System.out.println(res50);    // >>> [2.1,2.9]

        String res51 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":[{\"n\":-5},{\"n\":5},{\"n\":-3}]}");
        System.out.println(res51);    // >>> OK

        Object res52 = jedis.jsonGet("doc", new Path2("$.a[?abs(@.n) == 5]"));
        System.out.println(res52);    // >>> [{"n":-5},{"n":5}]
            CompletableFuture<Void> funcMathExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("{\"a\":[2.1,3.9,1.0]}"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?ceiling(@) == 3]"));
                    }).thenCompose(res2 -> {
                        System.out.println(res2); // >>> [[2.1]]
                        return asyncCommands.jsonSet("doc", JsonPath.ROOT_PATH,
                                parser.createJsonValue("{\"a\":[2.1,2.9,3.5]}"));
                    }).thenCompose(res3 -> {
                        System.out.println(res3); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?floor(@) == 2]"));
                    }).thenCompose(res4 -> {
                        System.out.println(res4); // >>> [[2.1,2.9]]
                        return asyncCommands.jsonSet("doc", JsonPath.ROOT_PATH,
                                parser.createJsonValue("{\"a\":[{\"n\":-5},{\"n\":5},{\"n\":-3}]}"));
                    }).thenCompose(res5 -> {
                        System.out.println(res5); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?abs(@.n) == 5]"));
                    }).thenAccept(res6 -> {
                        System.out.println(res6); // >>> [[{"n":-5},{"n":5}]]
                    }).toCompletableFuture();
            Mono<Void> funcMathExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("{\"a\":[2.1,3.9,1.0]}"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?ceiling(@) == 3]")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[2.1]]
                    })
                    .flatMap(res2 -> reactiveCommands.jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":[2.1,2.9,3.5]}")))
                    .doOnNext(res3 -> {
                        System.out.println(res3); // >>> OK
                    })
                    .flatMap(res3 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?floor(@) == 2]")).collectList())
                    .doOnNext(res4 -> {
                        System.out.println(res4); // >>> [[2.1,2.9]]
                    })
                    .flatMap(res4 -> reactiveCommands.jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":[{\"n\":-5},{\"n\":5},{\"n\":-3}]}")))
                    .doOnNext(res5 -> {
                        System.out.println(res5); // >>> OK
                    })
                    .flatMap(res5 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?abs(@.n) == 5]")).collectList())
                    .doOnNext(res6 -> {
                        System.out.println(res6); // >>> [[{"n":-5},{"n":5}]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":[2.1,3.9,1.0]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$.a[?ceiling(@) == 3]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [2.1]

	res3, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":[2.1,2.9,3.5]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res3) // >>> OK

	res4, err := rdb.JSONGet(ctx, "doc", `$.a[?floor(@) == 2]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res4) // >>> [2.1,2.9]

	res5, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":[{"n":-5},{"n":5},{"n":-3}]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res5) // >>> OK

	res6, err := rdb.JSONGet(ctx, "doc", `$.a[?abs(@.n) == 5]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res6) // >>> [{"n":-5},{"n":5}]
        bool res47 = db.JSON().Set("doc", "$", "{\"a\":[2.1,3.9,1.0]}");
        Console.WriteLine(res47);   // >>> True

        RedisResult res48 = db.JSON().Get("doc", path: "$.a[?ceiling(@) == 3]");
        Console.WriteLine(res48);   // >>> [2.1]

        bool res49 = db.JSON().Set("doc", "$", "{\"a\":[2.1,2.9,3.5]}");
        Console.WriteLine(res49);   // >>> True

        RedisResult res50 = db.JSON().Get("doc", path: "$.a[?floor(@) == 2]");
        Console.WriteLine(res50);   // >>> [2.1,2.9]

        bool res51 = db.JSON().Set("doc", "$", "{\"a\":[{\"n\":-5},{\"n\":5},{\"n\":-3}]}");
        Console.WriteLine(res51);   // >>> True

        RedisResult res52 = db.JSON().Get("doc", path: "$.a[?abs(@.n) == 5]");
        Console.WriteLine(res52);   // >>> [{"n":-5},{"n":5}]
        $res47 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => [2.1, 3.9, 1.0]]
        ));
        echo $res47 . PHP_EOL; // >>> OK

        $res48 = $this->redis->jsonget('doc', '', '', '', '$.a[?ceiling(@) == 3]');
        echo $res48 . PHP_EOL; // >>> [2.1]

        $res49 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => [2.1, 2.9, 3.5]]
        ));
        echo $res49 . PHP_EOL; // >>> OK

        $res50 = $this->redis->jsonget('doc', '', '', '', '$.a[?floor(@) == 2]');
        echo $res50 . PHP_EOL; // >>> [2.1,2.9]

        $res51 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => [["n" => -5], ["n" => 5], ["n" => -3]]]
        ));
        echo $res51 . PHP_EOL; // >>> OK

        $res52 = $this->redis->jsonget('doc', '', '', '', '$.a[?abs(@.n) == 5]');
        echo $res52 . PHP_EOL; // >>> [{"n":-5},{"n":5}]
res1 = r.json_set('doc', '$', { 'a' => [2.1, 3.9, 1.0] })
puts res1 # >>> OK

res2 = r.json_get('doc', '$.a[?ceiling(@) == 3]')
p res2 # >>> [2.1]

res3 = r.json_set('doc', '$', { 'a' => [2.1, 2.9, 3.5] })
puts res3 # >>> OK

res4 = r.json_get('doc', '$.a[?floor(@) == 2]')
p res4 # >>> [2.1, 2.9]

res5 = r.json_set('doc', '$', { 'a' => [{ 'n' => -5 }, { 'n' => 5 }, { 'n' => -3 }] })
puts res5 # >>> OK

res6 = r.json_get('doc', '$.a[?abs(@.n) == 5]')
p res6 # >>> [{"n"=>-5}, {"n"=>5}]
        match r.json_set("doc", "$", &json!({"a":[2.1,3.9,1.0]})) {
            Ok(res47) => {
                let res47: bool = res47;
                println!("{}", if res47 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?ceiling(@) == 3]") {
            Ok(res48) => {
                let res48: String = res48;
                println!("{res48}");    // >>> [2.1]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_set("doc", "$", &json!({"a":[2.1,2.9,3.5]})) {
            Ok(res49) => {
                let res49: bool = res49;
                println!("{}", if res49 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?floor(@) == 2]") {
            Ok(res50) => {
                let res50: String = res50;
                println!("{res50}");    // >>> [2.1,2.9]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_set("doc", "$", &json!({"a":[{"n":-5},{"n":5},{"n":-3}]})) {
            Ok(res51) => {
                let res51: bool = res51;
                println!("{}", if res51 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?abs(@.n) == 5]") {
            Ok(res52) => {
                let res52: String = res52;
                println!("{res52}");    // >>> [{"n":-5},{"n":5}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!({"a":[2.1,3.9,1.0]})).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.a[?ceiling(@) == 3]").await {
            Ok(res1) => {
                let res1: String = res1;
                println!("{res1}");    // >>> [2.1]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!({"a":[2.1,2.9,3.5]})).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.a[?floor(@) == 2]").await {
            Ok(res2) => {
                let res2: String = res2;
                println!("{res2}");    // >>> [2.1,2.9]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set(
            "doc",
            "$",
            &json!({"a":[{"n":-5},{"n":5},{"n":-3}]}),
        ).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.a[?abs(@.n) == 5]").await {
            Ok(res3) => {
                let res3: String = res3;
                println!("{res3}");    // >>> [{"n":-5},{"n":5}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

first(), last(), and index()

first(array) and last(array) return the first and last element of an array. index(array, n) returns the element at index n; a negative n counts from the end, a fractional n is truncated toward zero, and an out-of-range index produces Nothing.

Array access functions: Use first(), last(), and index() to pick a single element out of an array before comparing it
> JSON.SET doc $ '{"a":[{"n":[1,2]},{"n":[9,8]}]}'
OK
> JSON.GET doc '$.a[?first(@.n) == 1]'
"[{\"n\":[1,2]}]"
> JSON.GET doc '$.a[?last(@.n) == 8]'
"[{\"n\":[9,8]}]"
> JSON.GET doc '$.a[?index(@.n, -1) == 2]'
"[{\"n\":[1,2]}]"
res1 = r.json().set("doc", "$", {"a": [{"n": [1, 2]}, {"n": [9, 8]}]})
print(res1)
# >>> True

res2 = r.json().get("doc", "$.a[?first(@.n) == 1]")
print(res2)
# >>> [{'n': [1, 2]}]

res3 = r.json().get("doc", "$.a[?last(@.n) == 8]")
print(res3)
# >>> [{'n': [9, 8]}]

res4 = r.json().get("doc", "$.a[?index(@.n, -1) == 2]")
print(res4)
# >>> [{'n': [1, 2]}]
const res53 = await client.json.set('doc', '$', { a: [{ n: [1, 2] }, { n: [9, 8] }] });
console.log(res53); // >>> OK

const res54 = await client.json.get('doc', { path: '$.a[?first(@.n) == 1]' });
console.log(res54); // >>> [ { n: [ 1, 2 ] } ]

const res55 = await client.json.get('doc', { path: '$.a[?last(@.n) == 8]' });
console.log(res55); // >>> [ { n: [ 9, 8 ] } ]

const res56 = await client.json.get('doc', { path: '$.a[?index(@.n, -1) == 2]' });
console.log(res56); // >>> [ { n: [ 1, 2 ] } ]
        String res53 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":[{\"n\":[1,2]},{\"n\":[9,8]}]}");
        System.out.println(res53);    // >>> OK

        Object res54 = jedis.jsonGet("doc", new Path2("$.a[?first(@.n) == 1]"));
        System.out.println(res54);    // >>> [{"n":[1,2]}]

        Object res55 = jedis.jsonGet("doc", new Path2("$.a[?last(@.n) == 8]"));
        System.out.println(res55);    // >>> [{"n":[9,8]}]

        Object res56 = jedis.jsonGet("doc", new Path2("$.a[?index(@.n, -1) == 2]"));
        System.out.println(res56);    // >>> [{"n":[1,2]}]
            CompletableFuture<Void> funcArrayAccessExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":[{\"n\":[1,2]},{\"n\":[9,8]}]}"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?first(@.n) == 1]"));
                    }).thenCompose(res2 -> {
                        System.out.println(res2); // >>> [[{"n":[1,2]}]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?last(@.n) == 8]"));
                    }).thenCompose(res3 -> {
                        System.out.println(res3); // >>> [[{"n":[9,8]}]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?index(@.n, -1) == 2]"));
                    }).thenAccept(res4 -> {
                        System.out.println(res4); // >>> [[{"n":[1,2]}]]
                    }).toCompletableFuture();
            Mono<Void> funcArrayAccessExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("{\"a\":[{\"n\":[1,2]},{\"n\":[9,8]}]}"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?first(@.n) == 1]")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[{"n":[1,2]}]]
                    })
                    .flatMap(res2 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?last(@.n) == 8]")).collectList())
                    .doOnNext(res3 -> {
                        System.out.println(res3); // >>> [[{"n":[9,8]}]]
                    })
                    .flatMap(res3 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?index(@.n, -1) == 2]")).collectList())
                    .doOnNext(res4 -> {
                        System.out.println(res4); // >>> [[{"n":[1,2]}]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":[{"n":[1,2]},{"n":[9,8]}]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$.a[?first(@.n) == 1]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [{"n":[1,2]}]

	res3, err := rdb.JSONGet(ctx, "doc", `$.a[?last(@.n) == 8]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res3) // >>> [{"n":[9,8]}]

	res4, err := rdb.JSONGet(ctx, "doc", `$.a[?index(@.n, -1) == 2]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res4) // >>> [{"n":[1,2]}]
        bool res53 = db.JSON().Set("doc", "$", "{\"a\":[{\"n\":[1,2]},{\"n\":[9,8]}]}");
        Console.WriteLine(res53);   // >>> True

        RedisResult res54 = db.JSON().Get("doc", path: "$.a[?first(@.n) == 1]");
        Console.WriteLine(res54);   // >>> [{"n":[1,2]}]

        RedisResult res55 = db.JSON().Get("doc", path: "$.a[?last(@.n) == 8]");
        Console.WriteLine(res55);   // >>> [{"n":[9,8]}]

        RedisResult res56 = db.JSON().Get("doc", path: "$.a[?index(@.n, -1) == 2]");
        Console.WriteLine(res56);   // >>> [{"n":[1,2]}]
        $res53 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => [["n" => [1, 2]], ["n" => [9, 8]]]]
        ));
        echo $res53 . PHP_EOL; // >>> OK

        $res54 = $this->redis->jsonget('doc', '', '', '', '$.a[?first(@.n) == 1]');
        echo $res54 . PHP_EOL; // >>> [{"n":[1,2]}]

        $res55 = $this->redis->jsonget('doc', '', '', '', '$.a[?last(@.n) == 8]');
        echo $res55 . PHP_EOL; // >>> [{"n":[9,8]}]

        $res56 = $this->redis->jsonget('doc', '', '', '', '$.a[?index(@.n, -1) == 2]');
        echo $res56 . PHP_EOL; // >>> [{"n":[1,2]}]
res1 = r.json_set('doc', '$', { 'a' => [{ 'n' => [1, 2] }, { 'n' => [9, 8] }] })
puts res1 # >>> OK

res2 = r.json_get('doc', '$.a[?first(@.n) == 1]')
p res2 # >>> [{"n"=>[1, 2]}]

res3 = r.json_get('doc', '$.a[?last(@.n) == 8]')
p res3 # >>> [{"n"=>[9, 8]}]

res4 = r.json_get('doc', '$.a[?index(@.n, -1) == 2]')
p res4 # >>> [{"n"=>[1, 2]}]
        match r.json_set("doc", "$", &json!({"a":[{"n":[1,2]},{"n":[9,8]}]})) {
            Ok(res53) => {
                let res53: bool = res53;
                println!("{}", if res53 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?first(@.n) == 1]") {
            Ok(res54) => {
                let res54: String = res54;
                println!("{res54}");    // >>> [{"n":[1,2]}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?last(@.n) == 8]") {
            Ok(res55) => {
                let res55: String = res55;
                println!("{res55}");    // >>> [{"n":[9,8]}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?index(@.n, -1) == 2]") {
            Ok(res56) => {
                let res56: String = res56;
                println!("{res56}");    // >>> [{"n":[1,2]}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set(
            "doc",
            "$",
            &json!({"a":[{"n":[1,2]},{"n":[9,8]}]}),
        ).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.a[?first(@.n) == 1]").await {
            Ok(res1) => {
                let res1: String = res1;
                println!("{res1}");    // >>> [{"n":[1,2]}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?last(@.n) == 8]").await {
            Ok(res2) => {
                let res2: String = res2;
                println!("{res2}");    // >>> [{"n":[9,8]}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?index(@.n, -1) == 2]").await {
            Ok(res3) => {
                let res3: String = res3;
                println!("{res3}");    // >>> [{"n":[1,2]}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

min(), max(), avg(), sum(), and stddev()

These aggregation functions operate on an array of numbers. stddev() returns the population standard deviation (dividing by N). The functions are strict: an array that contains any non-numeric element, or an empty array, produces Nothing — elements are never silently skipped.

Aggregation functions: Use sum(), avg(), min(), max(), or stddev() to reduce an array of numbers to a single value in a filter
> JSON.SET doc $ '{"a":[{"n":[3,1,2]},{"n":[5,6]}]}'
OK
> JSON.GET doc '$.a[?sum(@.n) == 6]'
"[{\"n\":[3,1,2]}]"
> JSON.GET doc '$.a[?avg(@.n) == 2]'
"[{\"n\":[3,1,2]}]"
res1 = r.json().set("doc", "$", {"a": [{"n": [3, 1, 2]}, {"n": [5, 6]}]})
print(res1)
# >>> True

res2 = r.json().get("doc", "$.a[?sum(@.n) == 6]")
print(res2)
# >>> [{'n': [3, 1, 2]}]

res3 = r.json().get("doc", "$.a[?avg(@.n) == 2]")
print(res3)
# >>> [{'n': [3, 1, 2]}]
const res57 = await client.json.set('doc', '$', { a: [{ n: [3, 1, 2] }, { n: [5, 6] }] });
console.log(res57); // >>> OK

const res58 = await client.json.get('doc', { path: '$.a[?sum(@.n) == 6]' });
console.log(res58); // >>> [ { n: [ 3, 1, 2 ] } ]

const res59 = await client.json.get('doc', { path: '$.a[?avg(@.n) == 2]' });
console.log(res59); // >>> [ { n: [ 3, 1, 2 ] } ]
        String res57 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":[{\"n\":[3,1,2]},{\"n\":[5,6]}]}");
        System.out.println(res57);    // >>> OK

        Object res58 = jedis.jsonGet("doc", new Path2("$.a[?sum(@.n) == 6]"));
        System.out.println(res58);    // >>> [{"n":[3,1,2]}]

        Object res59 = jedis.jsonGet("doc", new Path2("$.a[?avg(@.n) == 2]"));
        System.out.println(res59);    // >>> [{"n":[3,1,2]}]
            CompletableFuture<Void> funcAggregateExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":[{\"n\":[3,1,2]},{\"n\":[5,6]}]}"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?sum(@.n) == 6]"));
                    }).thenCompose(res2 -> {
                        System.out.println(res2); // >>> [[{"n":[3,1,2]}]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a[?avg(@.n) == 2]"));
                    }).thenAccept(res3 -> {
                        System.out.println(res3); // >>> [[{"n":[3,1,2]}]]
                    }).toCompletableFuture();
            Mono<Void> funcAggregateExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":[{\"n\":[3,1,2]},{\"n\":[5,6]}]}"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?sum(@.n) == 6]")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[{"n":[3,1,2]}]]
                    })
                    .flatMap(res2 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a[?avg(@.n) == 2]")).collectList())
                    .doOnNext(res3 -> {
                        System.out.println(res3); // >>> [[{"n":[3,1,2]}]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":[{"n":[3,1,2]},{"n":[5,6]}]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$.a[?sum(@.n) == 6]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [{"n":[3,1,2]}]

	res3, err := rdb.JSONGet(ctx, "doc", `$.a[?avg(@.n) == 2]`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res3) // >>> [{"n":[3,1,2]}]
        bool res57 = db.JSON().Set("doc", "$", "{\"a\":[{\"n\":[3,1,2]},{\"n\":[5,6]}]}");
        Console.WriteLine(res57);   // >>> True

        RedisResult res58 = db.JSON().Get("doc", path: "$.a[?sum(@.n) == 6]");
        Console.WriteLine(res58);   // >>> [{"n":[3,1,2]}]

        RedisResult res59 = db.JSON().Get("doc", path: "$.a[?avg(@.n) == 2]");
        Console.WriteLine(res59);   // >>> [{"n":[3,1,2]}]
        $res57 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => [["n" => [3, 1, 2]], ["n" => [5, 6]]]]
        ));
        echo $res57 . PHP_EOL; // >>> OK

        $res58 = $this->redis->jsonget('doc', '', '', '', '$.a[?sum(@.n) == 6]');
        echo $res58 . PHP_EOL; // >>> [{"n":[3,1,2]}]

        $res59 = $this->redis->jsonget('doc', '', '', '', '$.a[?avg(@.n) == 2]');
        echo $res59 . PHP_EOL; // >>> [{"n":[3,1,2]}]
res1 = r.json_set('doc', '$', { 'a' => [{ 'n' => [3, 1, 2] }, { 'n' => [5, 6] }] })
puts res1 # >>> OK

res2 = r.json_get('doc', '$.a[?sum(@.n) == 6]')
p res2 # >>> [{"n"=>[3, 1, 2]}]

res3 = r.json_get('doc', '$.a[?avg(@.n) == 2]')
p res3 # >>> [{"n"=>[3, 1, 2]}]
        match r.json_set("doc", "$", &json!({"a":[{"n":[3,1,2]},{"n":[5,6]}]})) {
            Ok(res57) => {
                let res57: bool = res57;
                println!("{}", if res57 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?sum(@.n) == 6]") {
            Ok(res58) => {
                let res58: String = res58;
                println!("{res58}");    // >>> [{"n":[3,1,2]}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?avg(@.n) == 2]") {
            Ok(res59) => {
                let res59: String = res59;
                println!("{res59}");    // >>> [{"n":[3,1,2]}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set(
            "doc",
            "$",
            &json!({"a":[{"n":[3,1,2]},{"n":[5,6]}]}),
        ).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.a[?sum(@.n) == 6]").await {
            Ok(res1) => {
                let res1: String = res1;
                println!("{res1}");    // >>> [{"n":[3,1,2]}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a[?avg(@.n) == 2]").await {
            Ok(res2) => {
                let res2: String = res2;
                println!("{res2}");    // >>> [{"n":[3,1,2]}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

append()

append(value, ...) returns the matched array with the given value or values added after its elements. It is a read-only query-time projection and does not modify the stored document — to mutate an array in place, use the JSON.ARRAPPEND command instead. A multiple-value argument is added as a single element (it is not spread), and a Nothing argument makes the whole result Nothing.

Append function: Use append() as a read-only, query-time projection that adds a value after an array's elements without modifying the stored document
> JSON.SET doc $ '{"arr":[1,2,3]}'
OK
> JSON.GET doc '$.arr.append(9)'
"[1,2,3,9]"
> JSON.SET doc $ '{"books":[{"t":"a","price":30},{"t":"b","price":5}]}'
OK
> JSON.GET doc '$.books[?(@.price >= 10)].append({"t":"X"})'
"[{\"t\":\"a\",\"price\":30},{\"t\":\"X\"}]"
res1 = r.json().set("doc", "$", {"arr": [1, 2, 3]})
print(res1)
# >>> True

res2 = r.json().get("doc", "$.arr.append(9)")
print(res2)
# >>> [1, 2, 3, 9]

res3 = r.json().set("doc", "$", {"books": [{"t": "a", "price": 30}, {"t": "b", "price": 5}]})
print(res3)
# >>> True

res4 = r.json().get("doc", '$.books[?(@.price >= 10)].append({"t":"X"})')
print(res4)
# >>> [{'t': 'a', 'price': 30}, {'t': 'X'}]
const res60 = await client.json.set('doc', '$', { arr: [1, 2, 3] });
console.log(res60); // >>> OK

const res61 = await client.json.get('doc', { path: '$.arr.append(9)' });
console.log(res61); // >>> [ 1, 2, 3, 9 ]

const res62 = await client.json.set('doc', '$', {
  books: [{ t: 'a', price: 30 }, { t: 'b', price: 5 }]
});
console.log(res62); // >>> OK

const res63 = await client.json.get('doc', { path: '$.books[?(@.price >= 10)].append({"t":"X"})' });
console.log(res63); // >>> [ { t: 'a', price: 30 }, { t: 'X' } ]
        String res60 = jedis.jsonSet("doc", new Path2("$"), "{\"arr\":[1,2,3]}");
        System.out.println(res60);    // >>> OK

        Object res61 = jedis.jsonGet("doc", new Path2("$.arr.append(9)"));
        System.out.println(res61);    // >>> [1,2,3,9]

        String res62 = jedis.jsonSet("doc", new Path2("$"), "{\"books\":[{\"t\":\"a\",\"price\":30},{\"t\":\"b\",\"price\":5}]}");
        System.out.println(res62);    // >>> OK

        Object res63 = jedis.jsonGet("doc", new Path2("$.books[?(@.price >= 10)].append({\"t\":\"X\"})"));
        System.out.println(res63);    // >>> [{"t":"a","price":30},{"t":"X"}]
            CompletableFuture<Void> funcAppendExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("{\"arr\":[1,2,3]}"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.arr.append(9)"));
                    }).thenCompose(res2 -> {
                        System.out.println(res2); // >>> [[1,2,3,9]]
                        return asyncCommands.jsonSet("doc", JsonPath.ROOT_PATH,
                                parser.createJsonValue(
                                        "{\"books\":[{\"t\":\"a\",\"price\":30},{\"t\":\"b\",\"price\":5}]}"));
                    }).thenCompose(res3 -> {
                        System.out.println(res3); // >>> OK
                        return asyncCommands.jsonGet("doc",
                                JsonPath.of("$.books[?(@.price >= 10)].append({\"t\":\"X\"})"));
                    }).thenAccept(res4 -> {
                        System.out.println(res4); // >>> [[{"t":"a","price":30},{"t":"X"}]]
                    }).toCompletableFuture();
            Mono<Void> funcAppendExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("{\"arr\":[1,2,3]}"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.arr.append(9)")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[1,2,3,9]]
                    })
                    .flatMap(res2 -> reactiveCommands.jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue(
                                    "{\"books\":[{\"t\":\"a\",\"price\":30},{\"t\":\"b\",\"price\":5}]}")))
                    .doOnNext(res3 -> {
                        System.out.println(res3); // >>> OK
                    })
                    .flatMap(res3 -> reactiveCommands
                            .jsonGet("doc", JsonPath.of("$.books[?(@.price >= 10)].append({\"t\":\"X\"})"))
                            .collectList())
                    .doOnNext(res4 -> {
                        System.out.println(res4); // >>> [[{"t":"a","price":30},{"t":"X"}]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`{"arr":[1,2,3]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$.arr.append(9)`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [1,2,3,9]

	res3, err := rdb.JSONSet(ctx, "doc", "$",
		`{"books":[{"t":"a","price":30},{"t":"b","price":5}]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res3) // >>> OK

	res4, err := rdb.JSONGet(ctx, "doc", `$.books[?(@.price >= 10)].append({"t":"X"})`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res4) // >>> [{"t":"a","price":30},{"t":"X"}]
        bool res60 = db.JSON().Set("doc", "$", "{\"arr\":[1,2,3]}");
        Console.WriteLine(res60);   // >>> True

        RedisResult res61 = db.JSON().Get("doc", path: "$.arr.append(9)");
        Console.WriteLine(res61);   // >>> [1,2,3,9]

        bool res62 = db.JSON().Set("doc", "$", "{\"books\":[{\"t\":\"a\",\"price\":30},{\"t\":\"b\",\"price\":5}]}");
        Console.WriteLine(res62);   // >>> True

        RedisResult res63 = db.JSON().Get("doc", path: "$.books[?(@.price >= 10)].append({\"t\":\"X\"})");
        Console.WriteLine(res63);   // >>> [{"t":"a","price":30},{"t":"X"}]
        $res60 = $this->redis->jsonset('doc', '$', json_encode(
            ["arr" => [1, 2, 3]]
        ));
        echo $res60 . PHP_EOL; // >>> OK

        $res61 = $this->redis->jsonget('doc', '', '', '', '$.arr.append(9)');
        echo $res61 . PHP_EOL; // >>> [1,2,3,9]

        $res62 = $this->redis->jsonset('doc', '$', json_encode(
            ["books" => [["t" => "a", "price" => 30], ["t" => "b", "price" => 5]]]
        ));
        echo $res62 . PHP_EOL; // >>> OK

        $res63 = $this->redis->jsonget('doc', '', '', '', '$.books[?(@.price >= 10)].append({"t":"X"})');
        echo $res63 . PHP_EOL; // >>> [{"t":"a","price":30},{"t":"X"}]
res1 = r.json_set('doc', '$', { 'arr' => [1, 2, 3] })
puts res1 # >>> OK

res2 = r.json_get('doc', '$.arr.append(9)')
p res2 # >>> [1, 2, 3, 9]

res3 = r.json_set('doc', '$', { 'books' => [{ 't' => 'a', 'price' => 30 }, { 't' => 'b', 'price' => 5 }] })
puts res3 # >>> OK

res4 = r.json_get('doc', '$.books[?(@.price >= 10)].append({"t":"X"})')
p res4 # >>> [{"t"=>"a", "price"=>30}, {"t"=>"X"}]
        match r.json_set("doc", "$", &json!({"arr":[1,2,3]})) {
            Ok(res60) => {
                let res60: bool = res60;
                println!("{}", if res60 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.arr.append(9)") {
            Ok(res61) => {
                let res61: String = res61;
                println!("{res61}");    // >>> [1,2,3,9]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_set("doc", "$", &json!({"books":[{"t":"a","price":30},{"t":"b","price":5}]})) {
            Ok(res62) => {
                let res62: bool = res62;
                println!("{}", if res62 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", r#"$.books[?(@.price >= 10)].append({"t":"X"})"#) {
            Ok(res63) => {
                let res63: String = res63;
                println!("{res63}");    // >>> [{"t":"a","price":30},{"t":"X"}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!({"arr":[1,2,3]})).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.arr.append(9)").await {
            Ok(res1) => {
                let res1: String = res1;
                println!("{res1}");    // >>> [1,2,3,9]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set(
            "doc",
            "$",
            &json!({"books":[{"t":"a","price":30},{"t":"b","price":5}]}),
        ).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", r#"$.books[?(@.price >= 10)].append({"t":"X"})"#).await {
            Ok(res2) => {
                let res2: String = res2;
                println!("{res2}");    // >>> [{"t":"a","price":30},{"t":"X"}]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

Update examples

You can also use JSONPath queries when you want to update specific sections of a JSON document.

For example, you can pass a JSONPath to the JSON.SET command to update a specific field. This example changes the price of the first item in the headphones list:

Bulk updates: Use JSONPath with JSON.NUMINCRBY to update multiple numeric values across the document when you need to apply arithmetic operations to multiple fields
> JSON.GET bikes:inventory $..price
"[1920,2072,3264,1475,3941]"
> JSON.NUMINCRBY bikes:inventory $..price -100
"[1820,1972,3164,1375,3841]"
> JSON.NUMINCRBY bikes:inventory $..price 100
"[1920,2072,3264,1475,3941]"
res15 = r.json().get("bikes:inventory", "$..price")
print(res15)  # >>> [1920, 2072, 3264, 1475, 3941]

res16 = r.json().numincrby("bikes:inventory", "$..price", -100)
print(res16)  # >>> [1820, 1972, 3164, 1375, 3841]

res17 = r.json().numincrby("bikes:inventory", "$..price", 100)
print(res17)  # >>> [1920, 2072, 3264, 1475, 3941]
const res38 = await client.json.get("bikes:inventory", {
  path: "$..price"
});
console.log(res38);  //  [1920, 2072, 3264, 1475, 3941]

const res39 = await client.json.numIncrBy("bikes:inventory", "$..price", -100);
console.log(res39);  //  [1820, 1972, 3164, 1375, 3841]

const res40 = await client.json.numIncrBy("bikes:inventory", "$..price", 100);
console.log(res40);  //  [1920, 2072, 3264, 1475, 3941]
        Object res39 = jedis.jsonGet("bikes:inventory", new Path2("$..price"));
        System.out.println(res39);
        // >>> [1920,2072,3264,1475,3941]

        Object res40 = jedis.jsonNumIncrBy("bikes:inventory", new Path2("$..price"), -100);
        System.out.println(res40);  // >>> [1820,1972,3164,1375,3841]

        Object res41 = jedis.jsonNumIncrBy("bikes:inventory", new Path2("$..price"), 100);
        System.out.println(res41);  // >>> [1920,2072,3264,1475,3941]
            CompletableFuture<Void> updateBikes = asyncCommands.jsonGet("bikes:inventory", JsonPath.of("$..price"))
                    .thenCompose(r -> {
                        System.out.println(r); // >>> [[1920,2072,3264,1475,3941]]

                        return asyncCommands.jsonNumincrby("bikes:inventory", JsonPath.of("$..price"), -100);
                    }).thenCompose(res23 -> {
                        System.out.println(res23); // >>> [1820, 1972, 3164, 1375, 3841]

                        return asyncCommands.jsonNumincrby("bikes:inventory", JsonPath.of("$..price"), 100);
                    })
                    .thenAccept(System.out::println)
                    // >>> [1920, 2072, 3264, 1475, 3941]
                    .toCompletableFuture();
            Mono<Void> updateBikes = reactiveCommands.jsonGet("bikes:inventory", JsonPath.of("$..price")).collectList()
                    .doOnNext(r -> {
                        System.out.println(r); // >>> [[1920,2072,3264,1475,3941]]
                    })
                    .flatMap(
                            r -> reactiveCommands.jsonNumincrby("bikes:inventory", JsonPath.of("$..price"), -100).collectList())
                    .doOnNext(res23 -> {
                        System.out.println(res23); // >>> [1820, 1972, 3164, 1375, 3841]
                    })
                    .flatMap(res23 -> reactiveCommands.jsonNumincrby("bikes:inventory", JsonPath.of("$..price"), 100)
                            .collectList())
                    .doOnNext(System.out::println) // >>> [1920, 2072, 3264, 1475, 3941]
                    .then();
	res15, err := rdb.JSONGet(ctx, "bikes:inventory", "$..price").Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res15) // >>> [1475,3941,1920,2072,3264]

	res16, err := rdb.JSONNumIncrBy(ctx, "bikes:inventory", "$..price", -100).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res16) // >>> [1375,3841,1820,1972,3164]

	res17, err := rdb.JSONNumIncrBy(ctx, "bikes:inventory", "$..price", 100).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res17) // >>> [1475,3941,1920,2072,3264]
        RedisResult res42 = db.JSON().Get("bikes:inventory", path: "$..price");
        Console.WriteLine(res42);   // >>> [1920,2072,3264,1475,3941]

        double?[] res43 = db.JSON().NumIncrby("bikes:inventory", "$..price", -100);
        Console.WriteLine(string.Join(", ", res43));    // >>> 1820, 1972, 3164, 1375, 3841

        double?[] res44 = db.JSON().NumIncrby("bikes:inventory", "$..price", 100);
        Console.WriteLine(string.Join(", ", res44));    // >>> 1920, 2072, 3264, 1475, 3941
        $res15b = $r->jsonget('bikes:inventory', '', '', '', '$..price');
        echo $res15b . PHP_EOL;
        // >>> [1920,2072,3264,1475,3941]

        $res16b = $r->jsonnumincrby('bikes:inventory', '$..price', -100);
        echo json_encode($res16b) . PHP_EOL;
        // >>> [1820,1972,3164,1375,3841]

        $res17b = $r->jsonnumincrby('bikes:inventory', '$..price', 100);
        echo json_encode($res17b) . PHP_EOL;
        // >>> [1920,2072,3264,1475,3941]
res15 = r.json_get('bikes:inventory', '$..price')
p res15 # >>> [1920, 2072, 3264, 1475, 3941]

res16 = r.json_numincrby('bikes:inventory', '$..price', -100)
p res16 # >>> [1820, 1972, 3164, 1375, 3841]

res17 = r.json_numincrby('bikes:inventory', '$..price', 100)
p res17 # >>> [1920, 2072, 3264, 1475, 3941]
        let res40: String = r
            .json_get("bikes:inventory", "$..price")
            .expect("Failed to run JSON.GET");
        println!("{res40}"); // >>> [1920,2072,3264,1475,3941]

        let res41: String = cmd("JSON.NUMINCRBY")
            .arg("bikes:inventory")
            .arg("$..price")
            .arg(-100)
            .query(&mut r)
            .expect("Failed to run JSON.NUMINCRBY");
        println!("{res41}"); // >>> [1820,1972,3164,1375,3841]

        let res42: String = cmd("JSON.NUMINCRBY")
            .arg("bikes:inventory")
            .arg("$..price")
            .arg(100)
            .query(&mut r)
            .expect("Failed to run JSON.NUMINCRBY");
        println!("{res42}"); // >>> [1920,2072,3264,1475,3941]
        let res40: String = r
            .json_get("bikes:inventory", "$..price")
            .await
            .expect("Failed to run JSON.GET");
        println!("{res40}"); // >>> [1920,2072,3264,1475,3941]

        let res41: String = cmd("JSON.NUMINCRBY")
            .arg("bikes:inventory")
            .arg("$..price")
            .arg(-100)
            .query_async(&mut r)
            .await
            .expect("Failed to run JSON.NUMINCRBY");
        println!("{res41}"); // >>> [1820,1972,3164,1375,3841]

        let res42: String = cmd("JSON.NUMINCRBY")
            .arg("bikes:inventory")
            .arg("$..price")
            .arg(100)
            .query_async(&mut r)
            .await
            .expect("Failed to run JSON.NUMINCRBY");
        println!("{res42}"); // >>> [1920,2072,3264,1475,3941]

You can use filter expressions to update only JSON elements that match certain conditions. The following example sets the price of any bike to 1500 if its price is already less than 2000:

Conditional updates: Use filter expressions with JSON.SET to update only elements matching specific conditions when you need selective modifications
> JSON.SET bikes:inventory '$.inventory.*[?(@.price<2000)].price' 1500
OK
> JSON.GET bikes:inventory $..price
"[1500,2072,3264,1500,3941]"
res18 = r.json().set("bikes:inventory", "$.inventory.*[?(@.price<2000)].price", 1500)
res19 = r.json().get("bikes:inventory", "$..price")
print(res19)  # >>> [1500, 2072, 3264, 1500, 3941]
const res40a = await client.json.set(
  'bikes:inventory', 
  '$.inventory.*[?(@.price<2000)].price', 
  1500
);

// Get all prices from the inventory
const res40b = await client.json.get(
  'bikes:inventory',
  { path: "$..price" }
);
console.log(res40b); // [1500, 2072, 3264, 1500, 3941]
        jedis.jsonSet("bikes:inventory", new Path2("$.inventory.*[?(@.price<2000)].price"), 1500);
        Object res42 = jedis.jsonGet("bikes:inventory", new Path2("$..price"));
        System.out.println(res42);  // >>> [1500,2072,3264,1500,3941]
            CompletableFuture<Void> updateFilters1 = asyncCommands.jsonSet("bikes:inventory",
                    JsonPath.of("$.inventory.*[?(@.price<2000)].price"), parser.createJsonValue("1500")).thenCompose(r -> {
                        System.out.println(r); // >>> OK

                        return asyncCommands.jsonGet("bikes:inventory", JsonPath.of("$..price"));
                    })
                    .thenAccept(System.out::println)
                    // >>> [[1500,2072,3264,1500,3941]]
                    .toCompletableFuture();
            Mono<Void> updateFilters1 = reactiveCommands.jsonSet("bikes:inventory",
                    JsonPath.of("$.inventory.*[?(@.price<2000)].price"), parser.createJsonValue("1500")).doOnNext(r -> {
                        System.out.println(r); // >>> OK
                    }).flatMap(r -> reactiveCommands.jsonGet("bikes:inventory", JsonPath.of("$..price")).collectList())
                    .doOnNext(System.out::println) // >>> [[1500,2072,3264,1500,3941]]
                    .then();
	res18, err := rdb.JSONSet(ctx,
		"bikes:inventory",
		"$.inventory.*[?(@.price<2000)].price",
		1500,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res18) // >>> OK

	res19, err := rdb.JSONGet(ctx, "bikes:inventory", "$..price").Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res19) // >>> [1500,3941,1500,2072,3264]
        bool res45 = db.JSON().Set(
            "bikes:inventory",
            "$.inventory.*[?(@.price<2000)].price",
            1500
        );
        Console.WriteLine(res45);   // >>> True

        RedisResult res46 = db.JSON().Get("bikes:inventory", path: "$..price");
        Console.WriteLine(res46);   // >>> [1500,2072,3264,1500,3941]
        $res18b = $r->jsonset('bikes:inventory', '$.inventory.*[?(@.price<2000)].price', '1500');
        $res19b = $r->jsonget('bikes:inventory', '', '', '', '$..price');
        echo $res19b . PHP_EOL;
        // >>> [1500,2072,3264,1500,3941]
res18 = r.json_set('bikes:inventory', '$.inventory.*[?(@.price<2000)].price', 1500)
res19 = r.json_get('bikes:inventory', '$..price')
p res19 # >>> [1500, 2072, 3264, 1500, 3941]
        let _: bool = r
            .json_set(
                "bikes:inventory",
                "$.inventory.*[?(@.price<2000)].price",
                &json!(1500),
            )
            .expect("Failed to run JSON.SET");

        let res43: String = r
            .json_get("bikes:inventory", "$..price")
            .expect("Failed to run JSON.GET");
        println!("{res43}"); // >>> [1500,2072,3264,1500,3941]
        let _: bool = r
            .json_set(
                "bikes:inventory",
                "$.inventory.*[?(@.price<2000)].price",
                &json!(1500),
            )
            .await
            .expect("Failed to run JSON.SET");

        let res43: String = r
            .json_get("bikes:inventory", "$..price")
            .await
            .expect("Failed to run JSON.GET");
        println!("{res43}"); // >>> [1500,2072,3264,1500,3941]

JSONPath queries also work with other JSON commands that accept a path as an argument. For example, you can add a new color option for a set of headphones with JSON.ARRAPPEND:

Array updates with filters: Use JSON.ARRAPPEND with filter expressions to add elements to arrays matching conditions when you need to modify collections selectively
> JSON.ARRAPPEND bikes:inventory '$.inventory.*[?(@.price<2000)].colors' '"pink"'
1) (integer) 3
2) (integer) 3
> JSON.GET bikes:inventory $..[*].colors
"[[\"black\",\"silver\",\"pink\"],[\"black\",\"white\"],[\"black\",\"silver\",\"pink\"]]"
res20 = r.json().arrappend(
    "bikes:inventory", "$.inventory.*[?(@.price<2000)].colors", "pink"
)
print(res20)  # >>> [3, 3]

res21 = r.json().get("bikes:inventory", "$..[*].colors")
print(
    res21
)  # >>> [['black', 'silver', 'pink'], ['black', 'white'], ['black', 'silver', 'pink']]
const res41 = await client.json.arrAppend(
    "bikes:inventory", "$.inventory.*[?(@.price<2000)].colors", "pink"
);
console.log(res41);  //  [3, 3]

const res42 = await client.json.get("bikes:inventory", {
  path: "$..[*].colors"
});
console.log(res42);  //  [['black', 'silver', 'pink'], ['black', 'white'], ['black', 'silver', 'pink']]
        List<Long> res43 = jedis.jsonArrAppendWithEscape(
            "bikes:inventory", new Path2("$.inventory.*[?(@.price<2000)].colors"),
            "\"pink\""
        );
        System.out.println(res43);  // >>> [3, 3]

        Object res44 = jedis.jsonGet("bikes:inventory", new Path2("$..[*].colors"));
        System.out.println(res44);
        // >>> [["black","silver","\"pink\""],["black","white"],["black","silver","\"pink\""]]
            CompletableFuture<Void> updateFilters2 = asyncCommands.jsonArrappend("bikes:inventory",
                    JsonPath.of("$.inventory.*[?(@.price<2000)].colors"), parser.createJsonValue("\"pink\"")).thenCompose(r -> {
                        System.out.println(r); // >>> [3, 3]

                        return asyncCommands.jsonGet("bikes:inventory", JsonPath.of("$..[*].colors"));
                    })
                    .thenAccept(System.out::println)
                    // >>> [[["black","silver","pink"],["black","white"],["black","silver","pink"]]]
                    .toCompletableFuture();
            Mono<Void> updateFilters2 = reactiveCommands.jsonArrappend("bikes:inventory",
                    JsonPath.of("$.inventory.*[?(@.price<2000)].colors"), parser.createJsonValue("\"pink\"")).collectList()
                    .doOnNext(r -> {
                        System.out.println(r); // >>> [3, 3]
                    }).flatMap(r -> reactiveCommands.jsonGet("bikes:inventory", JsonPath.of("$..[*].colors")).collectList())
                    .doOnNext(System.out::println) // >>>
                                                   // [[["black","silver","pink"],["black","white"],["black","silver","pink"]]]
                    .then();
	res20, err := rdb.JSONArrAppend(ctx,
		"bikes:inventory",
		"$.inventory.*[?(@.price<2000)].colors",
		"\"pink\"",
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res20) // >>> [3 3]

	res21, err := rdb.JSONGet(ctx, "bikes:inventory", "$..[*].colors").Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res21)
	// >>> [["black","silver","pink"],["black","silver","pink"],["black","white"]]
        long?[] res47 = db.JSON().ArrAppend(
            "bikes:inventory", "$.inventory.*[?(@.price<2000)].colors", "pink"
        );
        Console.WriteLine(string.Join(", ", res47));    // >>> 3, 3

        RedisResult res48 = db.JSON().Get("bikes:inventory", path: "$..[*].colors");
        Console.WriteLine(res48);   // >>> [["black","silver","pink"],["black","white"],["black","silver","pink"]]
        $res20b = $r->jsonarrappend('bikes:inventory', '$.inventory.*[?(@.price<2000)].colors', '"pink"');
        echo json_encode($res20b) . PHP_EOL;
        // >>> [3,3]

        $res21b = $r->jsonget('bikes:inventory', '', '', '', '$..[*].colors');
        echo $res21b . PHP_EOL;
        // >>> [["black","silver","pink"],["black","white"],["black","silver","pink"]]
res20 = r.json_arrappend(
  'bikes:inventory', '$.inventory.*[?(@.price<2000)].colors', 'pink'
)
p res20 # >>> [3, 3]

res21 = r.json_get('bikes:inventory', '$..[*].colors')
p res21
# >>> [["black", "silver", "pink"], ["black", "white"], ["black", "silver", "pink"]]
        let res44: Value = cmd("JSON.ARRAPPEND")
            .arg("bikes:inventory")
            .arg("$.inventory.*[?(@.price<2000)].colors")
            .arg("\"pink\"")
            .query(&mut r)
            .expect("Failed to run JSON.ARRAPPEND");
        print_redis_value(&res44); // >>> [3,3]

        let res45: String = r
            .json_get("bikes:inventory", "$..[*].colors")
            .expect("Failed to run JSON.GET");
        println!("{res45}");
        // >>> [["black","silver","pink"],["black","white"],["black","silver","pink"]]
        let res44: Value = cmd("JSON.ARRAPPEND")
            .arg("bikes:inventory")
            .arg("$.inventory.*[?(@.price<2000)].colors")
            .arg("\"pink\"")
            .query_async(&mut r)
            .await
            .expect("Failed to run JSON.ARRAPPEND");
        print_redis_value(&res44); // >>> [3,3]

        let res45: String = r
            .json_get("bikes:inventory", "$..[*].colors")
            .await
            .expect("Failed to run JSON.GET");
        println!("{res45}");
        // >>> [["black","silver","pink"],["black","white"],["black","silver","pink"]]

Projection expressions

The top level of a JSONPath query can be an expression that computes a value — arithmetic, a function call, a get-keys operator, and so on — rather than only selecting nodes from the document. A query that is a plain path (for example, $.a.b, $..x, or even a fully parenthesized path such as ($.a)) still selects nodes; anything else (for example, $.a + 1, -$.a, $.arr.length(), length($.arr), $.obj~, or $.obj.keys()) is a projection.

A projection that evaluates to Nothing produces an empty reply ([]).

Projection expressions: Use arithmetic, a function call, or the length of a path as a top-level query that computes a value instead of only selecting nodes
> JSON.SET doc $ '{"a":2,"b":4,"arr":[1,2,3]}'
OK
> JSON.GET doc '$.a + 1'
"[3]"
> JSON.GET doc '$.a * $.b'
"[8]"
> JSON.GET doc '($.a + $.b) / 2'
"[3.0]"
> JSON.GET doc '$.arr.length()'
"[3]"
> JSON.GET doc '$.a / 0'
"[]"
res1 = r.json().set("doc", "$", {"a": 2, "b": 4, "arr": [1, 2, 3]})
print(res1)
# >>> True

res2 = r.json().get("doc", "$.a + 1")
print(res2)
# >>> [3]

res3 = r.json().get("doc", "$.a * $.b")
print(res3)
# >>> [8]

res4 = r.json().get("doc", "($.a + $.b) / 2")
print(res4)
# >>> [3.0]

res5 = r.json().get("doc", "$.arr.length()")
print(res5)
# >>> [3]

res6 = r.json().get("doc", "$.a / 0")
print(res6)
# >>> []
const res64 = await client.json.set('doc', '$', { a: 2, b: 4, arr: [1, 2, 3] });
console.log(res64); // >>> OK

const res65 = await client.json.get('doc', { path: '$.a + 1' });
console.log(res65); // >>> [ 3 ]

const res66 = await client.json.get('doc', { path: '$.a * $.b' });
console.log(res66); // >>> [ 8 ]

const res67 = await client.json.get('doc', { path: '($.a + $.b) / 2' });
console.log(res67); // >>> [ 3 ]

const res68 = await client.json.get('doc', { path: '$.arr.length()' });
console.log(res68); // >>> [ 3 ]

const res69 = await client.json.get('doc', { path: '$.a / 0' });
console.log(res69); // >>> []
        String res64 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":2,\"b\":4,\"arr\":[1,2,3]}");
        System.out.println(res64);    // >>> OK

        Object res65 = jedis.jsonGet("doc", new Path2("$.a + 1"));
        System.out.println(res65);    // >>> [3]

        Object res66 = jedis.jsonGet("doc", new Path2("$.a * $.b"));
        System.out.println(res66);    // >>> [8]

        Object res67 = jedis.jsonGet("doc", new Path("($.a + $.b) / 2"));
        System.out.println(res67);    // >>> [3.0]

        Object res68 = jedis.jsonGet("doc", new Path2("$.arr.length()"));
        System.out.println(res68);    // >>> [3]

        Object res69 = jedis.jsonGet("doc", new Path2("$.a / 0"));
        System.out.println(res69);    // >>> []
            CompletableFuture<Void> projBasicExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":2,\"b\":4,\"arr\":[1,2,3]}"))
                    .thenCompose(res1 -> {
                        System.out.println(res1); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a + 1"));
                    }).thenCompose(res2 -> {
                        System.out.println(res2); // >>> [[3]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a * $.b"));
                    }).thenCompose(res3 -> {
                        System.out.println(res3); // >>> [[8]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("($.a + $.b) / 2"));
                    }).thenCompose(res4 -> {
                        System.out.println(res4); // >>> [[3.0]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.arr.length()"));
                    }).thenCompose(res5 -> {
                        System.out.println(res5); // >>> [[3]]
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a / 0"));
                    }).thenAccept(res6 -> {
                        System.out.println(res6); // >>> [[]]
                    }).toCompletableFuture();
            Mono<Void> projBasicExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("{\"a\":2,\"b\":4,\"arr\":[1,2,3]}"))
                    .doOnNext(res1 -> {
                        System.out.println(res1); // >>> OK
                    })
                    .flatMap(res1 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a + 1")).collectList())
                    .doOnNext(res2 -> {
                        System.out.println(res2); // >>> [[3]]
                    })
                    .flatMap(res2 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a * $.b")).collectList())
                    .doOnNext(res3 -> {
                        System.out.println(res3); // >>> [[8]]
                    })
                    .flatMap(res3 -> reactiveCommands.jsonGet("doc", JsonPath.of("($.a + $.b) / 2")).collectList())
                    .doOnNext(res4 -> {
                        System.out.println(res4); // >>> [[3.0]]
                    })
                    .flatMap(res4 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.arr.length()")).collectList())
                    .doOnNext(res5 -> {
                        System.out.println(res5); // >>> [[3]]
                    })
                    .flatMap(res5 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a / 0")).collectList())
                    .doOnNext(res6 -> {
                        System.out.println(res6); // >>> [[]]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":2,"b":4,"arr":[1,2,3]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	res2, err := rdb.JSONGet(ctx, "doc", `$.a + 1`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> [3]

	res3, err := rdb.JSONGet(ctx, "doc", `$.a * $.b`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res3) // >>> [8]

	res4, err := rdb.JSONGet(ctx, "doc", `($.a + $.b) / 2`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res4) // >>> [3.0]

	res5, err := rdb.JSONGet(ctx, "doc", `$.arr.length()`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res5) // >>> [3]

	res6, err := rdb.JSONGet(ctx, "doc", `$.a / 0`).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res6) // >>> []
        bool res64 = db.JSON().Set("doc", "$", "{\"a\":2,\"b\":4,\"arr\":[1,2,3]}");
        Console.WriteLine(res64);   // >>> True

        RedisResult res65 = db.JSON().Get("doc", path: "$.a + 1");
        Console.WriteLine(res65);   // >>> [3]

        RedisResult res66 = db.JSON().Get("doc", path: "$.a * $.b");
        Console.WriteLine(res66);   // >>> [8]

        RedisResult res67 = db.JSON().Get("doc", path: "($.a + $.b) / 2");
        Console.WriteLine(res67);   // >>> [3.0]

        RedisResult res68 = db.JSON().Get("doc", path: "$.arr.length()");
        Console.WriteLine(res68);   // >>> [3]

        RedisResult res69 = db.JSON().Get("doc", path: "$.a / 0");
        Console.WriteLine(res69);   // >>> []
        $res64 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => 2, "b" => 4, "arr" => [1, 2, 3]]
        ));
        echo $res64 . PHP_EOL; // >>> OK

        $res65 = $this->redis->jsonget('doc', '', '', '', '$.a + 1');
        echo $res65 . PHP_EOL; // >>> [3]

        $res66 = $this->redis->jsonget('doc', '', '', '', '$.a * $.b');
        echo $res66 . PHP_EOL; // >>> [8]

        $res67 = $this->redis->jsonget('doc', '', '', '', '($.a + $.b) / 2');
        echo $res67 . PHP_EOL; // >>> [3.0]

        $res68 = $this->redis->jsonget('doc', '', '', '', '$.arr.length()');
        echo $res68 . PHP_EOL; // >>> [3]

        $res69 = $this->redis->jsonget('doc', '', '', '', '$.a / 0');
        echo $res69 . PHP_EOL; // >>> []
res1 = r.json_set('doc', '$', { 'a' => 2, 'b' => 4, 'arr' => [1, 2, 3] })
puts res1 # >>> OK

res2 = r.json_get('doc', '$.a + 1')
p res2 # >>> [3]

res3 = r.json_get('doc', '$.a * $.b')
p res3 # >>> [8]

res4 = r.json_get('doc', '($.a + $.b) / 2')
p res4 # >>> [3.0]

res5 = r.json_get('doc', '$.arr.length()')
p res5 # >>> [3]

res6 = r.json_get('doc', '$.a / 0')
p res6 # >>> []
        match r.json_set("doc", "$", &json!({"a":2,"b":4,"arr":[1,2,3]})) {
            Ok(res64) => {
                let res64: bool = res64;
                println!("{}", if res64 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a + 1") {
            Ok(res65) => {
                let res65: String = res65;
                println!("{res65}");    // >>> [3]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a * $.b") {
            Ok(res66) => {
                let res66: String = res66;
                println!("{res66}");    // >>> [8]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "($.a + $.b) / 2") {
            Ok(res67) => {
                let res67: String = res67;
                println!("{res67}");    // >>> [3.0]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.arr.length()") {
            Ok(res68) => {
                let res68: String = res68;
                println!("{res68}");    // >>> [3]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a / 0") {
            Ok(res69) => {
                let res69: String = res69;
                println!("{res69}");    // >>> []
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }
        let _: bool = match r.json_set("doc", "$", &json!({"a":2,"b":4,"arr":[1,2,3]})).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", "$.a + 1").await {
            Ok(res1) => {
                let res1: String = res1;
                println!("{res1}");    // >>> [3]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a * $.b").await {
            Ok(res2) => {
                let res2: String = res2;
                println!("{res2}");    // >>> [8]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "($.a + $.b) / 2").await {
            Ok(res3) => {
                let res3: String = res3;
                println!("{res3}");    // >>> [3.0]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.arr.length()").await {
            Ok(res4) => {
                let res4: String = res4;
                println!("{res4}");    // >>> [3]
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        match r.json_get("doc", "$.a / 0").await {
            Ok(res5) => {
                let res5: String = res5;
                println!("{res5}");    // >>> []
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

When JSON.GET is given more than one path, projections and plain paths can be mixed, and each path becomes a key in the returned object. The order of keys in that object is not guaranteed.

Multi-path queries: Pass more than one path to JSON.GET to have each path's result returned under its own key in a single reply
> JSON.GET doc '$.a + 1' '$.b'
"{\"$.a + 1\":[3],\"$.b\":[4]}"
res7 = r.json().set("doc", "$", {"a": 2, "b": 4, "arr": [1, 2, 3]})
print(res7)
# >>> True

res8 = r.json().get("doc", "$.a + 1", "$.b")
print(res8)
# >>> {'$.a + 1': [3], '$.b': [4]}
const res70 = await client.json.set('doc', '$', { a: 2, b: 4, arr: [1, 2, 3] });
console.log(res70); // >>> OK

const res71 = await client.json.get('doc', { path: ['$.a + 1', '$.b'] });
console.log(res71); // >>> { '$.a + 1': [ 3 ], '$.b': [ 4 ] }
        String res70 = jedis.jsonSet("doc", new Path2("$"), "{\"a\":2,\"b\":4,\"arr\":[1,2,3]}");
        System.out.println(res70);    // >>> OK

        Object res71 = jedis.jsonGet("doc", new Path2("$.a + 1"), new Path2("$.b"));
        System.out.println(res71);    // >>> {"$.a + 1":[3],"$.b":[4]} (a JSON object; key order is not guaranteed)
            CompletableFuture<Void> projMultipathExample = asyncCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH,
                            parser.createJsonValue("{\"a\":2,\"b\":4,\"arr\":[1,2,3]}"))
                    .thenCompose(res7 -> {
                        System.out.println(res7); // >>> OK
                        return asyncCommands.jsonGet("doc", JsonPath.of("$.a + 1"), JsonPath.of("$.b"));
                    }).thenAccept(res8 -> {
                        // The multi-path JSON.GET reply is a single JSON object keyed by path,
                        // and Redis does not guarantee key order, so look up each path rather
                        // than comparing the object's rendered string.
                        JsonObject paths = res8.get(0).asJsonObject();
                        System.out.println(paths); // >>> {"$.a + 1":[3],"$.b":[4]}
                    }).toCompletableFuture();
            Mono<Void> projMultipathExample = reactiveCommands
                    .jsonSet("doc", JsonPath.ROOT_PATH, parser.createJsonValue("{\"a\":2,\"b\":4,\"arr\":[1,2,3]}"))
                    .doOnNext(res7 -> {
                        System.out.println(res7); // >>> OK
                    })
                    .flatMap(res7 -> reactiveCommands.jsonGet("doc", JsonPath.of("$.a + 1"), JsonPath.of("$.b"))
                            .collectList())
                    .doOnNext(res8 -> {
                        System.out.println(res8); // >>> [{"$.a + 1":[3],"$.b":[4]}]
                    })
                    .then();
	res1, err := rdb.JSONSet(ctx, "doc", "$",
		`{"a":2,"b":4,"arr":[1,2,3]}`,
	).Result()

	if err != nil {
		panic(err)
	}

	fmt.Println(res1) // >>> OK

	raw, err := rdb.JSONGet(ctx, "doc", `$.a + 1`, `$.b`).Result()

	if err != nil {
		panic(err)
	}

	// A multi-path JSON.GET reply is a JSON object whose key order is not
	// guaranteed, so decode it into a map rather than printing the raw
	// string. Go's fmt package prints map keys in sorted order, which keeps
	// this example's output deterministic regardless of the order Redis
	// returns the paths in.
	res2 := map[string]interface{}{}

	if err := json.Unmarshal([]byte(raw), &res2); err != nil {
		panic(err)
	}

	fmt.Println(res2) // >>> map[$.a + 1:[3] $.b:[4]]
        bool res70 = db.JSON().Set("doc", "$", "{\"a\":2,\"b\":4,\"arr\":[1,2,3]}");
        Console.WriteLine(res70);   // >>> True

        RedisResult res71 = db.JSON().Get("doc", paths: new[] { "$.a + 1", "$.b" });
        Console.WriteLine(res71);   // >>> {"$.a + 1":[3],"$.b":[4]}
        $res70 = $this->redis->jsonset('doc', '$', json_encode(
            ["a" => 2, "b" => 4, "arr" => [1, 2, 3]]
        ));
        echo $res70 . PHP_EOL; // >>> OK

        $res71 = $this->redis->jsonget('doc', '', '', '', '$.a + 1', '$.b');
        // The reply is a JSON object keyed by path; key order is not guaranteed.
        echo $res71 . PHP_EOL; // >>> {"$.a + 1":[3],"$.b":[4]} (key order not guaranteed)
res7 = r.json_set('doc', '$', { 'a' => 2, 'b' => 4, 'arr' => [1, 2, 3] })
puts res7 # >>> OK

# The reply's key order is not guaranteed, so don't rely on it.
res8 = r.json_get('doc', '$.a + 1', '$.b')
p res8
        match r.json_set("doc", "$", &json!({"a":2,"b":4,"arr":[1,2,3]})) {
            Ok(res70) => {
                let res70: bool = res70;
                println!("{}", if res70 { "OK" } else { "(nil)" });    // >>> OK
            },
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        }

        // A multi-path JSON.GET replies with an object keyed by path, but Redis does not
        // guarantee the key order in that reply, so this parses the JSON and compares it
        // structurally (map equality, order-independent) instead of comparing raw strings.
        match r.json_get::<_, _, String>("doc", vec!["$.a + 1", "$.b"]) {
            Ok(res71) => {
                let parsed: serde_json::Value = serde_json::from_str(&res71).unwrap();
                // Render with sorted keys purely for a deterministic, printable example —
                // the actual reply's key order can differ from run to run.
                let sorted: std::collections::BTreeMap<String, serde_json::Value> =
                    serde_json::from_value(parsed.clone()).unwrap();
                println!("{}", serde_json::to_string(&sorted).unwrap());    // >>> {"$.a + 1":[3],"$.b":[4]}
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

        let _: bool = match r.json_set("doc", "$", &json!({"a":2,"b":4,"arr":[1,2,3]})).await {
            Ok(v) => v,
            Err(e) => {
                println!("Error setting doc: {e}");
                return;
            }
        };

        match r.json_get("doc", &["$.a + 1", "$.b"]).await {
            Ok(res6) => {
                let res6: String = res6;
                // The reply's key order is not guaranteed, so parse it into a
                // Value and compare that structurally rather than relying on
                // the raw string's key order.
                println!("{res6}");
            },
            Err(e) => {
                println!("Error getting doc: {e}");
                return;
            }
        }

JSON.MGET evaluates the projection independently for each key. A missing key, or a per-key evaluation error, yields a null reply for that key rather than failing the whole request.

Legacy path syntax

RedisJSON v1 had the following path implementation. JSON v2 still supports this legacy path in addition to JSONPath.

Paths always begin at the root of a Redis JSON value. The root is denoted by a period character (.). For paths that reference the root's children, it is optional to prefix the path with the root.

Redis JSON supports both dot notation and bracket notation for object key access. The following paths refer to headphones, which is a child of inventory under the root:

  • .inventory.headphones
  • inventory["headphones"]
  • ['inventory']["headphones"]

To access an array element, enclose its index within a pair of square brackets. The index is 0-based, with 0 being the first element of the array, 1 being the next element, and so on. You can use negative offsets to access elements starting from the end of the array. For example, -1 is the last element in the array, -2 is the second to last element, and so on.

JSON key names and path compatibility

By definition, a JSON key can be any valid JSON string. Paths, on the other hand, are traditionally based on JavaScript's (and Java's) variable naming conventions.

Although JSON can store objects that contain arbitrary key names, you can only use a legacy path to access these keys if they conform to these naming syntax rules:

  1. Names must begin with a letter, a dollar sign ($), or an underscore (_) character
  2. Names can contain letters, digits, dollar signs, and underscores
  3. Names are case-sensitive

Time complexity of path evaluation

The time complexity of searching (navigating to) an element in the path is calculated from:

  1. Child level - every level along the path adds an additional search
  2. Key search - O(N), where N is the number of keys in the parent object
  3. Array search - O(1)

This means that the overall time complexity of searching a path is O(N*M), where N is the depth and M is the number of parent object keys.

While this is acceptable for objects where N is small, access can be optimized for larger objects.

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