JSON.CLEAR - Amazon ElastiCache (Redis OSS)
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JSON.CLEAR

Clears the arrays or an object at the path.

Syntax

JSON.CLEAR <key> [path]

  • key (required) – A Redis OSS key of JSON document type.

  • path (optional) – A JSON path. Defaults to the root if not provided.

Return

  • Integer, the number of containers cleared.

  • Clearing an empty array or object accounts for 1 container cleared.

  • Clearing a non-container value returns 0.

Examples

127.0.0.1:6379> JSON.SET k1 . '[[], [0], [0,1], [0,1,2], 1, true, null, "d"]'
OK
127.0.0.1:6379>  JSON.CLEAR k1  $[*]
(integer) 7
127.0.0.1:6379> JSON.CLEAR k1  $[*]
(integer) 4
127.0.0.1:6379> JSON.SET k2 . '{"children": ["John", "Jack", "Tom", "Bob", "Mike"]}'
OK
127.0.0.1:6379> JSON.CLEAR k2 .children
(integer) 1
127.0.0.1:6379> JSON.GET k2 .children
"[]"