app.js

var request = require('request');
var config = require('./config');

module.exports = {

  startPkt: function() {
    dpid = config.dpid;
    urlApi = 'http://127.0.0.1:8080/packetgen/start/' + dpid;
    request(urlApi, function(error, response, body) {
      if (!error && response.statusCode == 200) {
        console.log(200);
      }
    });
  },

  stopPkt: function() {
    dpid = config.dpid;
    urlApi = 'http://127.0.0.1:8080/packetgen/stop/' + dpid;
    request(urlApi, function(error, response, body) {
      if (!error && response.statusCode == 200) {
        console.log(200);
      }
    });
  },

  setOutputPort: function(outputPort) {
    request({
      url: 'http://127.0.0.1:8080/packetgen/setoutput',
      method: 'PUT',
      json:{output: outputPort},
      function(error, response, body) {
        if (!error && response.statusCode == 200) {
          console.log('Set output port' + outputPort);
        }
      }
    });
  },

  setPayloadSize: function(size) {
    request({
      url: 'http://127.0.0.1:8080/packetgen/setpktsize',
      method: 'PUT',
      json:{payloadSize: outputPort},
      function(error, response, body) {
        if (!error && response.statusCode == 200) {
          console.log('Set packet size' + size);
        }
      }
    });
  },

  startPktWithTuple: function(src, dst, src_ip, dst_ip, src_port, dst_port) {
    dpid = config.dpid;
    urlApi = 'http://127.0.0.1:8080/packetgen/start/' + dpid;
    request({
      url: urlApi,
      method: 'PUT',
      json:{src:src, dst:dst, src_ip:src_ip, dst_ip:dst_ip, src_port:src_ip, dst_port:dst_port},
      function(error, response, body) {
        if (!error && response.statusCode == 200) {
          console.log('Set 5 tuple' + json);
        }
      }
    });
  },

};

test.js

$(document).ready(function(){
	var app = require('./app.js')
	$('.menu .item').tab();
	$('.ui.checkbox').checkbox();
	$('.ui.toggle.button').state({
	  text: {
	    inactive : 'Send',
	    active   : 'Sending'
	  }
	});

        $('.message .close')
          .on('click', function() {
            $(this)
              .closest('.message')
              .transition('fade')
            ;
          });


        $("#applyBtn").click(function() {
          var pktGenStatus = $('#pktGenStatus').checkbox('is checked');
	        var outputPortNum = $("#outputPort").val();
          var pktSize = $("#pktSize").val();

          if (!outputPortNum) {
            $("#dutInPortField").removeClass('inline field').addClass('inline field error');
            return
          } else if (!pktSize) {
            $("#pktSizeField").removeClass('inline field').addClass('inline field error');
            return
          } else {
            $("#dutInPortField").removeClass('inline field error').addClass('inline field');
            $("#pktSizeField").removeClass('inline field error').addClass('inline field');
          }

          if(pktGenStatus) {
          	app.setOutputPort(outputPortNum);
            app.setPayloadSize(pktSize);
						app.startPkt();
					} else {
						app.stopPkt();
					}

        });

      });