POST application/json (data store with array of objects)

Need the ability to submit application/json from client-side out-of-the-box without the need for javascript.

@George also agreed that this is pretty trivial in this thread which has other details on this topic - A bit of guidance needed - Datastore to server action

Currently, the only way to achieve submission of array of objects (nested json structure) is by using hidden fields in a very complex way - covered in this thread Send nested JSON with server-side API

Now that we have data-store component which could possibly have more than one level of data which equates to a json structure (simple example below), there is no way to submit it to server-side without using javascript.

Here are others threads with the same need - How to save data in 'DataStore (local storage)' to MySQL Table?, Copy data from Data Store into database