current_addthree_service.js

var jayson = require('jayson');

// create an array of injected services
var services = [

  function(args) {
    return jayson.client.http({
      host: process.env.MICROLIB_SERVICE_HOST,
      port: process.env.MICROLIB_SERVICE_PORT
    }).request("addtwo", args, function(err, response) {
      return response.result;
    });
  },

];

// create the current service
var server = jayson.server({
  addthree : function(args, callback) {
    (function (services, args, callback) {
      callback(null, serivces[0](args[0], args[1]) + args[3] );
    })(services, args, callback);
  }
});

server.http().listen( process.env.MICROLIB_SERVICE_PORT );