> ## Documentation Index
> Fetch the complete documentation index at: https://upstash-fix-issues-on-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# JSON.STRLEN

> Report the length of the JSON String at path in key

## Arguments

<ParamField body="key" type="string" required>
  The key of the json entry.
</ParamField>

<ParamField body="path" type="string" default="$">
  The path of the array.
</ParamField>

## Response

<ResponseField type="array" required>
  JSON.STRLEN returns by recursive descent an array of integer replies for each path, the array's length, or nil, if the matching JSON value is not a string.
</ResponseField>

<RequestExample>
  ```ts Example
  await redis.json("key", "$.path.to.array", "a");
  ```
</RequestExample>