Server Authentication with JWT
A Next.js example implementing server-side JWT authentication to prevent rendering before user validation.
What is Server Authentication with JWT?
Server authentication on Next.js using JWT is an example project that demonstrates how to implement server-side authentication in Next.js applications. It solves the problem of accessing browser storage during server-side rendering by handling sessions on the server and validating user authentication before rendering views. This approach prevents components from rendering until authentication checks are complete, addressing a common React/Next.js challenge.
Next.js developers building applications that require secure authentication and proper server-side rendering behavior, particularly those struggling with authentication validation timing issues.
Developers choose this example because it provides a practical solution to the specific problem of preventing render before authentication validation in Next.js applications, using industry-standard JWT authentication with clear implementation patterns.
Overview
This project demonstrates how to implement server-side authentication in Next.js applications using JSON Web Tokens (JWT). It addresses a common challenge in React-based applications where accessing browser storage (like localStorage) during server-side rendering requires component lifecycle methods, potentially causing rendering before authentication validation.
Key Features
- Server-Side Session Handling — Manages user sessions on the server to validate authentication status before rendering views
- Pre-Render Validation — Prevents component rendering until authentication checks are complete, avoiding issues with accessing localStorage during SSR
- JWT-Based Authentication — Uses JSON Web Tokens for secure user authentication and session management
- Demo Credentials — Includes pre-configured demo user credentials for immediate testing and exploration
Philosophy
This example follows the philosophy of moving authentication logic to the server side in Next.js applications to ensure proper validation occurs before any rendering takes place, creating more secure and predictable application behavior.
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