Dispaying an indoor route and directions

Using the WrldNavigation widget to find an indoor route, display the directions and display that route using the WrldRouteView widget.
<!DOCTYPE HTML>
<html>
  <head>
    <script src="https://unpkg.com/wrld.js@1.x.x"></script>
    <link href="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.1/leaflet.css" rel="stylesheet" />

    <link href="https://cdn-webgl.wrld3d.com/wrldjs/addons/resources/v1/latest/css/wrld.css" rel="stylesheet"/>
    <script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
    <script src="https://code.jquery.com/ui/1.12.0/jquery-ui.min.js"></script>
    <script src="https://cdn-webgl.wrld3d.com/wrldjs/addons/indoor_control/v1/latest/indoor_control.js"></script>
    <script src="https://cdn-webgl.wrld3d.com/wrldjs/addons/navigation/v1/latest/navigation.js"></script>
    <script src="https://cdn-webgl.wrld3d.com/wrldjs/addons/routeview/v1/latest/routeview.js"></script>

  </head>
  
  <body>
  <div style="position: relative">
    <div id="map" style="height: 500px">
      <div id="navigation-widget-container" style="position: absolute; left: 0px; right: 0px; top: 0px; bottom: 0px; overflow: hidden;"></div>
      <div id="indoor-control-widget-container" style="position: absolute; top: 120px; right: 20px; bottom: 30px;"></div>
    </div>
    <div style="position: absolute; top: 0; right: 0; display: flex; flex-direction: column; z-index: 20;">
      <button onclick="openNavWidget()">Open</button>
      <button onclick="closeNavWidget()">Close</button>
      <button onclick="findRoute()">Find Route</button>
      <button onclick="clearRoute()">Clear Route</button>
    </div>
    <script>
      var apiKey = "your_api_key_here";

      var map = Wrld.map("map", apiKey, {
        center: [56.459844, -2.978236],
        zoom: 18,
        indoorsEnabled: true
      });

      var indoorControl = new WrldIndoorControl("indoor-control-widget-container", map);
      
      var navigation = new WrldNavigation("navigation-widget-container", map, apiKey);
      
      var routeView = new WrldRouteView(map, {
        polyline: {
          weight: 10
        }
      });

      var startLocation = WrldNavigation.buildLocation("Car Park", 56.460716, -2.979616);
      var endLocation = WrldNavigation.buildLocation("Desk", 56.459834, -2.978244, "westport_house", 2);

      function clearRoute() {
        navigation.clearLocations();
        navigation.clearDirections();
        routeView.clearDirections();
      }

      function findRoute() {
        navigation.setStartLocation(startLocation);
        navigation.setEndLocation(endLocation);
        navigation.findRoute(startLocation, endLocation, findRouteCallback);
      }

      function findRouteCallback(result) {
        if (result.route) {
          navigation.buildDirectionsForRoute(result.route, buildDirectionsCallback);
        }
      }

      function buildDirectionsCallback(result) {
        if (result.directions) {
          navigation.setDirections(result.directions);
          routeView.setDirections(result.directions);
          navigation.setRouteDuration(result.route.routeDuration);
        }
      }

      function openNavWidget() {
        navigation.openControl();
      }

      function closeNavWidget() {
        navigation.closeControl();
      }

    </script>
  </div>
  </body>
</html>