topic Re: Update GeoJSONLayer URL parameter and refresh in ArcGIS JavaScript Maps SDK Questions

Update GeoJSONLayer URL parameter and refresh

ArnauForner — Tue, 22 Feb 2022 21:41:32 GMT

Hello

Is it possible to change the URL property of a GeoJSONLayer and .refresh(), so that it fetches a new set of data, overwrites the previous one and displays it on the map?

I need a different URL, not just a different query string, which I know it is possible by using .createQuery() .queryFeatures().

Thanks

Re: Update GeoJSONLayer URL parameter and refresh

UndralBatsukh — Wed, 23 Feb 2022 23:37:26 GMT

Hi there,

This cannot be done and goes for all layers. You'd have to create a new instance of GeoJSONLayer for each unique URLs.

Re: Update GeoJSONLayer URL parameter and refresh

rhys-kdrm — Sun, 26 May 2024 10:19:14 GMT

I know this is an old post, but in case anyone comes across this, yes this is possible. I wrote a LinkedIn article on this a while ago: https://www.linkedin.com/pulse/how-load-geojson-from-postgres-using-bounding-box-arcgis-donoghue - how to load GeoJSON using a bounding box. You shouldn't change the URL, you should just change the query string parameters using the custom parameters for the layer. If you really do have different URLs and cannot change them, then you can set up a service that handles the different URLs, and then use that service URL in your app. I occasionally do this when I need to integrate non-ArcGIS systems with ArcGIS Enterprise or ArcGIS Online.