OAuth Explained | Authentication, Authorization & User Onboarding for Scalable Systems

In this video, we explain the OAuth protocol and how it streamlines authentication and authorization in modern distributed systems. You will learn how OAuth enables users to sign in using existing accounts from providers like Google and Facebook, reducing registration friction and improving onboarding conversion rates. We also discuss the architectural trade-offs of OAuth, including reduced password management overhead, increased security responsibility on providers, and the risks of third-party dependency. A real-world case study shows how implementing OAuth can significantly boost user signups, making it a powerful tool for both engineers and product teams. This video is ideal for backend developers, system designers, and anyone building scalable, user-friendly applications.

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