Metadata Instruction: Extract Information key's value from a JSON
Edited by: Shubhali Agarwal
Use Cases - When to use this command
To extract a key's value from JSON.
Description
EXTRACTKEYSFROMOBJ is used to extract information such as the value of a key from a JSON object.
Guidelines for Usage:
DO NOT USE in the root node.
Use variables only if they have been previously declared.
How to use this command
EXTRACTKEYSFROMOBJ command is for node level operations. It can be used in any node as an instruction, except for the root node.
It should not be used on the Arrows.
Let's take an example: EXTRACTKEYSFROMOBJ $result $resp['data']['city']
Here "$resp" is an API's JSON response which contains the key "data" that further contains "city" as a key.
"$result" will store the value corresponding to the key "city".
