JWT Authentication Demo

Authentication Flow

Initial State: User not authenticated 1. User Login Request Client → Server: POST /login {username, password} 2. Server Validation Server validates credentials 3. JWT Generation Server creates JWT with user claims Server → Client: {token: "jwt_string"} 4. Protected Request Client → Server: GET /protected (Authorization: Bearer jwt_string) 5. JWT Verification Server verifies JWT signature and expiration Server → Client: Protected resource data Current State: Ready for authentication

Generated JWT Token

No token generated yet. Click "Authenticate & Get JWT" to generate a token.

JWT Decoder

Decoded JWT parts will appear here...