I updated the Basemap Gallery Widget and in Edit.html I added one more input box where user can input the overlay service url. I need this service name to be saved in config_BasemapGallery.json together with other information that is saved there.
Every time we edit any basemap, on saving the widget, it updates the config_BasemapGallery.json located under that app folder (server\apps\9\configs\BasemapGallery)
I am not able to write the overlay url in the config_BasemapGallery.json that the user enters in the new custom field in Edit.html.
I need help to know which function is used when the user hits SAVE. I am not able to find that.