Securing Express Applications with Google OAuth and JWT

This article provides a comprehensive implementation guide for integrating Google OAuth authentication into Express.js applications, a critical capability for modern web applications that need to reduce authentication friction while enhancing security. By combining PassportJS and JWT tokens, developers can implement industry-standard OAuth 2.0 flows that eliminate the need for users to manage separate credentials. This approach is essential for building scalable applications that meet contemporary security standards while improving user experience.