topic How to retrieve complete layer list from a Map Service in ArcGIS Experience Builder Questions

How to retrieve complete layer list from a Map Service

LorenzoFerrari — Fri, 24 Jan 2025 14:33:05 GMT

Hello everyone,
I am developing a custom widget, and I am trying to allow the user to load a single layer from a Map Service published on ArcGIS Server onto the map.
I would like to create a Select panel that displays the complete list of layers available in the Map Service so that the user can choose which layer to load. What is the best way to retrieve this list?
I'm using ExB Developer 1.15

Thanks!

Re: How to retrieve complete layer list from a Map Service

JeffreyThompson2 — Fri, 24 Jan 2025 14:49:19 GMT

You can load the MapImageLayer into memory, but not the map using this code.

// Typical usage let layer = new MapImageLayer({ // URL to the map service url: "https://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer", });

Now the single layers will be available as an array on layer.sublayers.

https://developers.arcgis.com/javascript/latest/api-reference/esri-layers-MapImageLayer.html#sublayers