topic Displaying JSON and Client side features on map in Flutter Maps SDK Questions

Displaying JSON and Client side features on map

Aeseir — Tue, 01 Apr 2025 23:02:31 GMT

I am exploring Flutter SDK and struggling to understand how to instantiate new FeatureLayer using client side Features.

Use case is in field a user may load features from their web app (which uses arcgis js) to their map on mobile device. Since its not hosted layer (temp data) data is shared between as simple JSON (web app -> mobile).

They may modify the json prior to loading it to map to suit their needs.

How do we handle this scenario? Should I be using FeatureCollectionLayer instead?

Re: Displaying JSON and Client side features on map

kossiyovo — Thu, 03 Apr 2025 10:06:59 GMT

For loading client-side features from a web app into a Flutter app using JSON, you should use FeatureCollectionLayer, not FeatureLayer. FeatureLayer is designed for layers that are hosted on a server.
Since your data is temporary and comes as a JSON payload, FeatureCollectionLayer will allow you to manage and display a collection of client-side features without requiring a hosted source.

Re: Displaying JSON and Client side features on map

Aeseir — Mon, 07 Apr 2025 04:10:20 GMT

Thank you I thought as much.