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JSON.DEBUG

JSON.DEBUG MEMORY
Syntax
JSON.DEBUG MEMORY key [path]
Available in:
Redis Stack / JSON 1.0.0
Time complexity:
O(N) when path is evaluated to a single value, where N is the size of the value, O(N) when path is evaluated to multiple values, where N is the size of the key

Report a value's memory usage in bytes

Examples

Required arguments

key

is key to parse.

Optional arguments

path

is JSONPath to specify. Default is root $.

Return

JSON.DEBUG MEMORY returns an integer reply specified as the value size in bytes. For more information about replies, see Redis serialization protocol specification.

Examples

Report a value's memory usage in bytes

Create a JSON document.

127.0.0.1:6379> JSON.SET item:2 $ '{"name":"Wireless earbuds","description":"Wireless Bluetooth in-ear headphones","connection":{"wireless":true,"type":"Bluetooth"},"price":64.99,"stock":17,"colors":["black","white"], "max_level":[80, 100, 120]}'
OK

Get the values' memory usage in bytes.

127.0.0.1:6379> JSON.DEBUG MEMORY item:2
(integer) 253

See also

JSON.SET | JSON.ARRLEN

© 2006–2022 Salvatore Sanfilippo
Licensed under the Creative Commons Attribution-ShareAlike License 4.0.
https://redis.io/commands/json.debug-memory/