Introduction to Middleware in JWT Smith

JWT Smith provides built-in middleware to simplify authentication and authorization in your application. These middleware functions help verify JWTs, extract user information, and enforce role-based access control (RBAC) seamlessly.

Available Middleware

1. validateJwtCookieMiddleware
   • Extracts and verifies access and refresh tokens from cookies.
2. validateJwtHeaderMiddleware
   • Checks for a JWT token in the Authorization header and verifies its validity.
3. roleBasedAuthenticationMiddleware
   • Ensures users have the necessary roles to access protected resources.

Each middleware function is designed to integrate effortlessly with Express applications while allowing customization through JwtManager configurations.

In the following sections, we will dive into each middleware in detail, covering their usage, customization options, and best practices.