Скачать или смотреть Infinite Loop during Authentication with Keycloak in NET Core API and Angular using BFF Architectur

*Introduction:*

Hey everyone, welcome back to my channel! Today we're going to tackle a really important topic that can be a bit tricky to understand, especially when working with authentication in .NET Core APIs and Angular applications using the Backend-for-Frontend (BFF) architecture. We're talking about infinite loops during authentication with Keycloak.

If you've ever worked on an application that uses Keycloak for authentication, you might have encountered this issue before. It can be frustrating to debug, but don't worry, we'll break it down step by step and explore the reasons behind it. By the end of this video, you'll understand what causes infinite loops during authentication with Keycloak and how to avoid them.

*Main Content:*

So, let's dive into the main content. When using Keycloak for authentication in a .NET Core API and Angular application, we often implement the BFF architecture. This pattern helps us keep our frontend and backend separate, making it easier to maintain and scale our application.

However, when implementing this architecture, we might encounter an infinite loop during authentication. But why does this happen? Well, it usually occurs because of a misconfiguration or misunderstanding of how Keycloak works with the BFF architecture.

To understand what's happening, let's break down the flow of events that occur during authentication. When a user tries to log in to our application, the frontend sends an authentication request to the backend API. The backend then redirects the user to the Keycloak login page.

After successful authentication, Keycloak redirects the user back to our application with an authorization code. Our backend API then exchanges this code for an access token, which is used to authenticate subsequent requests from the frontend.

Now, here's where things can go wrong. If our backend API is not properly configured or if there's a mismatch between the redirect URI and the URL that Keycloak redirects the user to, we might end up in an infinite loop. This happens because our application keeps trying to authenticate the user, but the authentication flow never completes.

Let me illustrate this with an example. Imagine you're building an e-commerce website using .NET Core API and Angular. You've implemented the BFF architecture and are using Keycloak for authentication. When a user tries to log in, your frontend redirects them to the backend API, which then redirects them to the Keycloak login page.

After successful authentication, Keycloak redirects the user back to your application with an authorization code. However, if your backend API is not properly configured to handle this redirect URI, it might send another authentication request to Keycloak, starting the loop all over again.

*Key Takeaways:*

So, what are the key takeaways from our discussion today? First, make sure you understand how the BFF architecture works with Keycloak for authentication. It's essential to configure your backend API and frontend correctly to avoid infinite loops during authentication.

Secondly, double-check that your redirect URI matches the URL that Keycloak redirects the user to after successful authentication. This is crucial in preventing infinite loops.

Lastly, if you do encounter an infinite loop during authentication, take a closer look at your configuration and debug your application step by step. You might need to adjust your backend API or frontend code to fix the issue.

*Conclusion:*

And that's it for today! I hope this video has helped you understand what causes infinite loops during authentication with Keycloak in .NET Core APIs and Angular applications using the BFF architecture. If you have any questions or need further clarification, please leave a comment below. Don't forget to like this video if you found it helpful and subscribe to my channel for more content on software development.

If you've encountered infinite loops during authentication before, share your experience with us in the comments section. What did you do to resolve the issue? Your feedback is valuable in helping others who might be facing similar challenges.

Thanks for watching, and I'll catch you all in the next video!