Register your application
When you register your application on ArcGIS, you are provided with the authorization credentials (
client ID and
client secret) necessary for initiating either ArcGIS identity or application credentials.
Follow these steps to register your app and generate your credentials:
Sign in to ArcGIS Developer.
Click the OAuth 2.0 tab.
Click + New Application and enter your application's details to register your new app.
After registration, you are shown the application overview; locate your Client ID and Client Secret.