Clean JSON

A tool that will remove all null or empty value in json. Useful to work with API Connector.
4 Server side actions:
A) Clean JSON. Will remove null and empty "" key
B) Remove Empty key value JSON. Will only remove empty "" value and key pair
C) Replace Empty by null JSON. Will replace empty "" value by null
D) Replace "null" by null JSON

Example:

{ "id": "12345", "date":"", "line": [{ "id": "line123","data":null }]}

Result:

{"id":"12345","line":[{"id":"line123"}]}