Just be clear - I am not suggesting JSON-RPC as there is no envelope and the name of the invoked procedure is in the HTTP request line. For example: POST /

Just be clear - I am not suggesting JSON-RPC as there is no envelope and the name of the invoked procedure is in the HTTP request line. For example: POST /api/listPosts HTTP/1.1 { userId: "banana", fromDate: 2342342342, toDate: 2343242 } Reponse: HTTP/1.1 200 OK [ { id: 32432, title: "Happy banana", userId: "banana" }, ... ] Or in case of an error: HTTP/1.1 500 Internal Server Error { type: "class name of exception raised server side", message: "Out of bananas" } The types can be specified with TypeScript needed.