Retrieve OAuth 2.0 authorization code using JavaFX WebView

This post documents a snippet of code that can be added to Browser class in JavaFX WebView sample, to extract OAuth 2.0 authorization code.

Assuming you’ve configured WebView’s WebEngine to load the authorization URL, the authorization service will redirect you to the redirect_uri specified in the authorization URL, after a user logs in successfully. It will pass along the code parameter, that can be extracted as follows