How to pass form elements values to JSON for Post Api?

[sid]

This should help:

Send nested JSON with server-side API

How do I submit a JSON with the server-side API action like this: { "purchase-order": { "status": "OPEN", "warehouse": "c955_330498075", "variants": { "vendor": "najel", "replenishment": 1 } } } Maybe it has something to do with the ‘add repeat’ action, but I’m not sure how to make that work. Sending a ‘flat’ JSON is working fine.