JWT for Stateless Authentication
Implement JSON Web Tokens (JWT) for stateless authentication, managing user sessions securely.
What is JWT?
In this lesson, we'll dive into JSON Web Tokens (JWTs). They are a compact, URL-safe means of representing claims to be transferred between two parties.
JWTs are crucial for stateless authentication. This means the server doesn't need to store session information. Instead, all necessary user data is embedded directly within the token itself.
JWT Structure: Three Parts
A JWT is made of three distinct parts, separated by dots (.):
- Header: Information about the token itself.
- Payload: The actual data (claims) you want to transmit.
- Signature: Used to verify the token hasn't been tampered with.
It looks like this: xxxxx.yyyyy.zzzzz