Server-side implementation for handling JSON-RPC requests

Simple description

JSON-RPC presence service was used for my bachelor thesis "Web Presence Detection", but other services could be added as well.

Structure

The code is structured as follows:

• Request layer - It intercepts and handles the request. Also an object with request information is built
• Executor layer
• Service layer
• Data access object (DAO) layer

Diagram that describes the architecture

How is executed PresenceService.read method

As you can see from diagram, you can create your own service if you follow the same structure as presence service. Also, you are free to use what database you want (e.g. MySQL, MongoDB)

Technologies

• Node.js
• Elasticsearch

Examples

var Server = require('apiserver/jsonrpc/HTTPServer.js');
var server = new Server();

server.start();
//setTimeout(function() { server.stop() }, 5000);

Request

{
  "jsonrpc": "2.0",
  "method": "PresenceService.update",
  "params": {
    "personId": "007",
    "agentId": "112233",
    "created": "2013-08-27T15:16:16Z",
    "updated": "2013-08-27T19:16:16Z",
    "lastUpdate": {
      "class": "ACTIVITY",
      "content": {
        "type": "status",
        "message": "Lorem ipsum dolor",
        "description": "Short description",
        "url": "http://www.example.com",
        "thumbnail": {
          "URL": "http://www.example.com/image.jpg",
          "width": 500,
          "height": 500,
          "type": "IMAGE"
        }
      },
      "source": {
        "appId": "007",
        "type": "EXTERNAL",
        "title": "Facebook",
        "link": "https://www.facebook.com"
      },
      "userGenerated": true,
      "sync": true
    }
  },
  "id": 1
}

Response

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