there is any widget that allowed to download data from the web app (to download features or raster)?
Adnane Labbaci
Look here:
Analysis widget—Web AppBuilder for ArcGIS (Developer Edition) | ArcGIS for Developers
Download a shapefile function on ArcGIS AppBuilder
You can also add your vote here:
WAB - Create Download Data Widget for Web App
You can use the clip and ship Geoprocessing tool to extract data from a service url: Geoprocessing service example: Clip And Ship—Documentation (10.3 and 10.3.1) | ArcGIS Enterprise
