JSON-RPC 2.0 this is a simple stateless protocol for creating an RPC (Remote Procedure Call) style API. It usually looks as follows:
You have one single endpoint on the server that accepts requests with a body of the form:
{"jsonrpc": "2.0", "method": "post.like", "params": {"post": "12345"}, "id": 1}
And it returns answers of the view: