Supporting Open Banking

Listening for the OAuth signal

• iOS: The SDK will listen for the signal and launch the system browser when needed.
• Android: The SDK will listen for the signal and launch the system browser when needed.
• JS SDK: When used in a browser the OAuth flow will be handled automatically. If integrating in a
  different context when instantiating the SDK, provide the openBankingRedirect option with
  your custom app scheme or universal link. Once an OAuth flow is triggered, a message will be posted to
  the window with a type property of oauthUrl and a url property
  containing the URL that needs to be launched.

Handling the return signal

The webview will continue polling while the user is going through the OAuth flow. The webview should not be
destroyed when the OAuth URL is launched and should be returned to the screen once the return signal is
received.

External Documentation

Setting up custom scheme

• iOS:
  Defining a Custom URL Scheme for your app
• Android:
  Create Deep Links to App Content
• React Native:
  Deep linking

Setting up Universal Link

• iOS:
  Supporting Associated Domains
• Android:
  Create Deep Links to App Content,
  and
  Verify Android App Links
• React Native: See above
  (Deep linking)

Testing Open Banking

To test enrolling via open banking, search the institution list for “DAG OAuth” and use the following credentials: