While developing the Blogging Web Application, one major challenge was managing user authentication and session handling securely. At first, users were unable to stay logged in after refreshing the page due to improper token storage. I resolved this by implementing JWT (JSON Web Token) authentication with proper local storage handling.

Another issue was aligning the frontend and backend API responses. Some data formats didn’t match, causing display errors in blog posts. I debugged this by testing each API endpoint and validating responses with console logs and Postman.

Through these challenges, I improved my understanding of backend integration, debugging, and secure login management.