#OAuth

I thought adding a 'Login with Google' button would be easy. Instead, I faced Redirect URI errors, State parameters, and HTTPS issues. I share the 4-step 'dance' of OAuth 2.0, practical solutions with NextAuth.js, and how to handle mobile deep linking.

Clarifying the confusion between login and permission checks through real security incidents and the 'Airport Security' analogy. Deep dive into JWT structure, OAuth 2.0, and Authentication strategies in Microservices.