Implement user authentication

1. Go to the Create OAuth credentials for user authentication tutorial to obtain a ClientID and RedirectURL to use in step 3.

2. Add the ArcGIS Toolkit package to this swift project by following these instructions.

3. In the Project Navigator, click MainApp.swift.

   • In the Editor, declare and initialize an Authenticator toolkit member in the MainApp struct.
   • Create an initializer in the MainApp struct.
   • Create a new instance of the Authenticator using an OAuthUserConfiguration that contains your OAuth credentials from step 1.
   • Ensure the ArcGISEnvironment.authenticationManager uses the authenticatior to handle any ArcGIS challenges.
   MainApp.swift.

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   @main
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   struct MainApp: App {
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       @ObservedObject var authenticator: Authenticator
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       init() {
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           authenticator = Authenticator(oAuthUserConfigurations: [
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               OAuthUserConfiguration(
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                   portalURL: URL(string: "<#YOUR-PORTAL-URL#>")!,
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                   clientID: ""<#YOUR-CLIENT-ID#>"",
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                   redirectURL: URL(string: "<#YOUR-REDIRECT-URL#>")!
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               )
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           ])
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           ArcGISEnvironment.authenticationManager.handleChallenges(using: authenticator)
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       }

For more information, see the User authentication.

Best Practice: The OAuth credentials are stored directly in the code as a convenience for this tutorial. Do not store credentials directly in source code in a production environment.