index.js

require([
  "esri/map",
  "esri/request",
  "esri/geometry/Polyline",
  "esri/symbols/SimpleLineSymbol",
  "esri/graphic",
  "dojo/domReady!"],

  function(Map, request, Polyline, SimpleLineSymbol, Graphic) {
  //Init Esri Basemap

  window.map = new Map("mapDiv", {
    center: [-122.68,45.53],
    zoom: 11,
    basemap: "gray"
  });

  var polylineJson = {
    "paths":[[[-122.68,45.53], [-122.58,45.55],
    [-122.57,45.58],[-122.53,45.6]]]
  };

  window.symbol = new SimpleLineSymbol().setWidth(10);

  window.geometry = new Polyline(polylineJson);

  window.polyline = new esri.Graphic(geometry, symbol);

  map.on('load', function () {
    map.graphics.add(polyline);
  });

  var serviceUrl    = "https://logistics.arcgis.com/arcgis/rest/services/World/VehicleRoutingProblem/GPServer/SolveVehicleRoutingProblem/submitJob?parameters";
  var currentToken  = "t3Sk71Rm6M7tguGzwY3tc0Ifu0GvkClKcWyh1cac8twAQccmooj8du-NgJuc36PHgaqdpVYKLqEiPD96I4muvkxLZp0ZbzhxlzUaYuHSYc67wLHhdAvmgOJY0Bptv3s2zTzmxsgqLsxwtiAZvfi6yw..";
  var routeRequest = request({
    url: serviceUrl,
    content: {
      orders: JSON.stringify([
        {
          geometry: {
            x: -122.68,
            y: 45.53
          },
          attributes: {
            name: "First_Order"
          }
        },
        {
          geometry: {
            x: -122.58,
            y: 45.55
          },
          attributes: {
            name: "Second_Order"
          }
        },
        {
          geometry: {
            x: -122.57,
            y: 45.58
          },
          attributes: {
            name: "Third_Order"
          }
        }
      ]),
      depots: JSON.stringify([
        {
          geometry: {
            x: -122.53,
            y: 45.6
          },
          attributes: {
            name: "The_Cafe"
          }
        }
      ]),
      routes: JSON.stringify([
        {
          attributes: {
            name: "First_Route",
            StartDepotName: "The_Cafe",
            EndDepotName: "The_Cafe"
          }
        }
      ]),
      default_date: (new Date()).getTime(),
      token       : currentToken,
      f           : "json"},
    handleAs: "json",
    callbackParamName: "callback"
  });

  function areWeThereYet(jobId) {
    setInterval(function(){
      console.log('are we there yet?');
      request({
        url: "https://logistics.arcgis.com/arcgis/rest/services/World/VehicleRoutingProblem/GPServer/SolveVehicleRoutingProblem/jobs/" + jobId,
        content: {
          jobId: jobId,
          token: currentToken,
          f: "json"
        }
      }).then(
        function(response) {
          console.log("Success: ", response);
      }, function(error) {
          console.log("Error: ", error.message);
      });
    }, 2500);
  }

  // Call the Route function here, figure out some way to deal with the weird 'are we there yet' callback.
  routeRequest.then(
    function(response) {
      console.log("Success: ", response);
      areWeThereYet(response.jobId);
  }, function(error) {
      console.log("Error: ", error.message);
  });
});