Consequences of POST not being idempotent (RESTful API)

Question

I am wondering if my current approach makes sense or if there is a better way to do it.

I have multiple situations where i want to create new objects and let the server

Answer 1

The only advantage of POST-creation over PUT-creation is the server generation of IDs. I don't think it worths the lack of idempotency (and then the need for removing duplicates or empty objets).

Instead, I would use a PUT with a UUID in the URL. Owing to UUID generators you are nearly sure that the ID you generate client-side will be unique server-side.