Let’s look into the implementation of Spring Boot with JWT authentication using Redis. Bobcares, as a part of our Server Management Service offers solutions to every query that comes our way.

Spring Boot with JWT Authentication using Redis

The system offers a safe and scalable way to user verification in an app. It works as follows:

1. User enters the login data.

2. The Spring Boot program checks the login details.

3. If valid, the app creates a JWT token with user claims.

4. The token is signed using a secret key known only to the server.

5. The JWT token is kept in Redis and associated with the user.

6. The client includes the JWT token in the Authorization header of the next request.

7. Spring Boot stops the request and takes the token from its header.

8. The program verifies the token with the same secret key: Verifies the signature and Checks for token expiry.

9. If valid, the user has right to use the specified resource.

10. The program can obtain user data connected with the token from Redis (if it exists).

Implementation

1. Add the needed libraries for Spring Security, JWT, and Redis connectivity.

2. Set up Spring Security for JWT authentication. Define a bean for JwtTokenProvider using the private key.

3. Set up the authentication filters. One to handle login and token creation. Another way to validate JWT tokens in incoming requests.

4. Create a service that creates and validates JWT tokens using the JwtTokenProvider bean.

5. Implement login and logout endpoints. The login endpoint checks inputs and provides a token. The logout endpoint (optional) might invalidate the Redis token.

6. Secure the app endpoints using Spring Security annotations such as @PreAuthorize, which regulate access based on user roles or JWT claims.

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Conclusion

The article explains about the steps from our Tech team to implement Spring Boot with JWT authentication using Redis.