--- acl_categories: - '@json' - '@read' - '@slow' arguments: - name: key type: key - name: path optional: true type: string categories: - docs - develop - stack - oss - rs - rc - oss - kubernetes - clients complexity: O(N) when path is evaluated to a single value, where N is the number of keys in the object, O(N) when path is evaluated to multiple values, where N is the size of the key description: Returns the JSON keys of the object at path group: json hidden: false linkTitle: JSON.OBJKEYS module: JSON railroad_diagram: /images/railroad/json.objkeys.svg since: 1.0.0 stack_path: docs/data-types/json summary: Returns the JSON keys of the object at path syntax_fmt: JSON.OBJKEYS key [path] title: JSON.OBJKEYS --- Return the keys in the object that's referenced by `path` [Examples](#examples) ## Required arguments
key is key to parse. Returns `null` for nonexistent keys.
## Optional arguments
path is JSONPath to specify. Default is root `$`. Returns `null` for nonexistant path.
## Examples {{< highlight bash >}} redis> JSON.SET doc $ '{"a":[3], "nested": {"a": {"b":2, "c": 1}}}' OK redis> JSON.OBJKEYS doc $..a 1) (nil) 2) 1) "b" 2) "c" {{< / highlight >}} ## Redis Software and Redis Cloud compatibility | Redis
Software | Redis
Cloud | Notes | |:----------------------|:-----------------|:------| | ✅ Supported
| ✅ Flexible & Annual
✅ Free & Fixed | | ## Return information {{< multitabs id="json-objkeys-return-info" tab1="RESP2" tab2="RESP3" >}} With `$`-based path argument: [Array reply]({{< relref "/develop/reference/protocol-spec#arrays" >}}) of [array replies]({{< relref "/develop/reference/protocol-spec#arrays" >}}) of [bulk string replies]({{< relref "/develop/reference/protocol-spec#bulk-strings" >}}), where each nested array contains the key names in the object, or `null` if the matching value is not an object. With `.`-based path argument: [Array reply]({{< relref "/develop/reference/protocol-spec#arrays" >}}) of [bulk string replies]({{< relref "/develop/reference/protocol-spec#bulk-strings" >}}) containing the key names in the object, or [null reply]({{< relref "/develop/reference/protocol-spec#nulls" >}}) if the matching value is not an object. -tab-sep- With `$`-based path argument (default): [Array reply]({{< relref "/develop/reference/protocol-spec#arrays" >}}) of [array replies]({{< relref "/develop/reference/protocol-spec#arrays" >}}) of [bulk string replies]({{< relref "/develop/reference/protocol-spec#bulk-strings" >}}), where each nested array contains the key names in the object, or `null` if the matching value is not an object. With `.`-based path argument: [Array reply]({{< relref "/develop/reference/protocol-spec#arrays" >}}) of [bulk string replies]({{< relref "/develop/reference/protocol-spec#bulk-strings" >}}) containing the key names in the object, or [null reply]({{< relref "/develop/reference/protocol-spec#nulls" >}}) if the matching value is not an object. {{< /multitabs >}} ## See also [`JSON.ARRINDEX`]({{< relref "commands/json.arrindex/" >}}) | [`JSON.ARRINSERT`]({{< relref "commands/json.arrinsert/" >}}) ## Related topics * [RedisJSON]({{< relref "/develop/data-types/json/" >}}) * [Index and search JSON documents]({{< relref "/develop/ai/search-and-query/indexing/" >}})