JSON-RPC

JSON-RPC is an attempt at a standard way of representing objects for RPC using JSON. This removes the need to decode any proprietary binary protocol at the expense of transfer speed. There is no requirement for any particular client or server to serve this data format, TCP sockets, and the ability to write strings that pretty much most all programming languages can manage are all you require.

Unlike Thrift and Protocol Buffers, JSON-RPC sets the standard for the message serialization.

JSON-RPC implements some nice features that allow the batching of requests; every request contains an id parameter, which is established by the client. When the server responds it will return the same identifier allowing the client to understand to which request a response relates.

This is a JSON-RPC serialized request:

{
  "jsonrpc": "2.0", 
  "method": "Users.v1.CreateUser",
  "params": {
    "name": "Nic Jackson", 
    "id": 12335432434
  }, 
  "id": 1
} 

This is a JSON-RPC serialized response:

{
  "jsonrpc": "2.0", 
  "result": {...}, 
  "id": 1
} 

Find more information on JSON-RPC 2.0 at http://www.jsonrpc.org/specification.