This sample shows how to add an instance of WMTSLayer. The WMTSLayer is used to create layers based on OGC Web Map Tile Service (WMTS). Typically, a WMTS service acts as a directory of WMTS layers, you can set a specific layer using the activeLayer property, (or else it will default to the first sublayer). The WMTSLayer initially executes a WMTS GetCapabilities request, which might require CORS or a proxy page.
Data note:We acknowledge the use of imagery provided by services from the Global Imagery Browse Services (GIBS), operated by the NASA/GSFC/Earth Science Data and Information System (ESDIS,
https://earthdata.nasa.gov) with funding provided by NASA/HQ.
Go to GIBS for information about this and other WMTS services from NASA Earthdata.