Replace Bing layer with MapTiler

examples/drag-and-drop.js

@@ -15,13 +15,18 @@ const dragAndDropInteraction = new DragAndDrop({
   ]
 });
 
+const key = 'get_your_own_D6rA4zTHduk6KOKTXzGB';
+const attributions = '<a href="https://www.maptiler.com/copyright/" target="_blank">&copy; MapTiler</a> ' +
+  '<a href="https://www.openstreetmap.org/copyright" target="_blank">&copy; OpenStreetMap contributors</a>';
+
 const map = new Map({
   interactions: defaultInteractions().extend([dragAndDropInteraction]),
   layers: [
     new TileLayer({
-      source: new BingMaps({
+      source: new XYZ({
-        imagerySet: 'Aerial',
+        attributions: attributions,
-        key: 'As1HiMj1PvLPlqc_gtM7AqZfBL8ZL3VrjaS3zIb22Uvb9WKhuJObROC-qUpa81U5'
+        url: 'https://api.maptiler.com/tiles/satellite/{z}/{x}/{y}.jpg?key=' + key,
+        maxZoom: 20
       })
     })
   ],