Spring Boot 3 + Spring Security 6 + JWT From Scratch | Lazy Programmer

[@nikantchaudhary]

loved your video. Please start a series for improving performance of java applications like identifying memory leaks, profiling etc.

[@LazzyProgrammer]

Thank you for your feedback, Sure I can take a look into such series after completing Spring Security. In the mean time if you want you can check out few videos where such issues are discussed. Links are give below: Memory Leaks: kzbin.info/www/bejne/Z5zWe6OdoJZ7f8U Working of Heap Memory: kzbin.info/www/bejne/fnrXgICsbpeAfKM and few Garbage Collection related videos also.

[@mesmerizeart663]

Brother Your Scratch level Explanation on Core and Advance Java is NextLevel 🔥🔥🔥🔥Whatever you explain in between ~15 Minuit video is More than 3 day's classroom tutor .Thank's Brother for your Work God Bless You.

[@LazzyProgrammer]

Thank you so much :). I am glad that these things are helping. Let us keep learning together :)

[@sanduniiresha9842]

Your content was absolutely on point! You explained everything in such an easy-to-understand way.

[@LazzyProgrammer]

Thank you, I am glad it was helpful!

[@playerunknownbattlegraound]

Easy to understand I get all things in single video Greate👍🏻

[@LazzyProgrammer]

Thank you for your feedback. Keep Learning :)

[@mohamadalhamid287]

thanks for a beauifull lesson, but the lesson sequence is not correct, it should be at the beginning.

[@LazzyProgrammer]

I am glad that it was helpful, as far as sequence is concerned, I first try to cover the concept theoretically and then move to implementation hence the sequence. Thank you for your feedback 🙂

[@victoronwuhafua8464]

Hello LazyProgrammer thanks for you video, 1 question what is the function of the JwtAuthenticationFilter?? in your implementation, because you added/instantiate the class in the securityFilterChain method as a filter .addFilter(new JwtAuthenticationFilter(authenticationManager(httpSecurity.getSharedObject(AuthenticationConfiguration.class)), jwtUtil)) however there is no use case (at least that i was able to find) that actually makes use of the implementation 1 for login you created a controller and service that gets the userdetails using userdetailservice bean and then creates a jwt using jwtutil class 2 for secure routes the generated token is used in the JwtAuthorizationFilter class to validate the user 3 for register no authentication is applied

[@LazzyProgrammer]

AuthenticationFilter will be used in the scenario for our next video where we'll get rid of AuthController itself.

[@LazzyProgrammer]

To generate JWT tokens without a REST endpoint? kzbin.info/www/bejne/h2qZm6Jpirt_pbc You can checkout the usage of JwtAuthenticationFilter in this.

[@chetanp4588]

Why using deprecated methods instead of latest 0.12.6v of jjwt ... If possible can you help me to get the latest Jwt Authorization token... I tried but can't access preAuthorize API has Role ADMIN....

[@LazzyProgrammer]

Sure Chetan, I am already planning to upgrade it and get rid of deprecated JWT methods in next video where I will implement RBAC

[@chetanp4588]

@@LazzyProgrammer Thanks a lot for ur response....I tried it on all aspects of accessing RBAC, In DB role name is saved as ROLE_ADMIN ROLE_USER Also at SecurityConfig Giving @EnableMethodSecurity(prePostEnabled = true) For @preAuthorize("hasRole('ADMIN')") @DeleteMapping Admin role Jwt Authorization token can't access the above API... help me...

[@LazzyProgrammer]

Hi Chetan, You can check the video below as I have covered the same problem in my recent video. RBAC JWT + SpringBoot 3 + Upgrade JWT + Fix Deprecated Method Usage: kzbin.info/www/bejne/nZerpH6JiZ2bjtU