Learn how to implement authentication in your Next.js application.

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This post explains how to implement user authentication in a React and Next.js application. It covers the basic concepts of authentication, session management, and authorization. It also provides a step-by-step guide on creating signup and login forms, validating form fields on the server, and managing user sessions using stateless and database-based approaches. Additionally, the post includes tips on using authentication libraries, performing optimistic and secure authorization checks, and best practices for handling data securely in your application.

Building Your Application: Authentication