Increment the number value stored at path by number
key
is key to modify.
value
is number value to increment.
path
is JSONPath to specify. Default is root $.
JSON.NUMINCRBY returns a bulk string reply specified as a stringified new value for each path, or nil, if the matching JSON value is not a number.
For more information about replies, see Redis serialization protocol specification.
Increment number values
Create a document.
{{< highlight bash >}} 127.0.0.1:6379> JSON.SET doc . '{"a":"b","b":[{"a":2}, {"a":5}, {"a":"c"}]}' OK {{< / highlight >}}
Increment a value of a object by 2. The command fails to find a number and returns null.
{{< highlight bash >}} 127.0.0.1:6379> JSON.NUMINCRBY doc $.a 2 "[null]" {{< / highlight >}}
Recursively find and increment a value of all a objects. The command increments numbers it finds and returns null for nonnumber values.
{{< highlight bash >}} 127.0.0.1:6379> JSON.NUMINCRBY doc $..a 2 "[null,4,7,null]" {{< / highlight >}}
JSON.ARRINDEX | JSON.ARRINSERT