What is JWT?
JSON Web Token (JWT) is a compact, URL-safe means of representing claims to be transferred between two parties. It's a digitally signed token that contains a payload of user data.
How does JWT work?
User Authentication: A user logs in with their credentials. Token Generation: The server generates a JWT token containing the user's data, such as username, email, and role. Token Signing: The token is digitally signed with a secret key to prevent tampering. Token Response: The server responds with the JWT token. Token Verification: The client includes the JWT token in subsequent requests. Server Verification: The server verifies the token's signature and payload. Benefits of JWT
Stateless: JWT is stateless, meaning the server doesn't need to store user data. Secure: JWT is digitally signed, making it tamper-proof. Scalable: JWT is lightweight and easy to handle. Common Use Cases
Authentication: JWT is used to authenticate users. Authorization: JWT is used to authorize users for specific actions. Single Sign-On (SSO): JWT is used to enable SSO across multiple applications.