Скачать или смотреть Lesson 7: Understanding JWT vs Keycloak in Microservices | Security with Spring Boot

In Lesson 7 of the Spring Boot Microservices – Learn from Zero series, we will explore and implement the following:

✅ How to create and use JWT for user authentication in a microservice architecture.
✅ Integrating Keycloak as a professional Identity Provider (OAuth2 standard).
✅ Authentication flow between services using JWT + FeignClient.
✅ Clear distinction between custom JWT implementation and centralized Keycloak-managed tokens.
✅ Real-world demo: order-service calls user-service → analyze and validate user from the token.

This is one of the most important lessons to help you understand security in distributed systems, especially when building microservices architecture.

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📺 Playlist: Spring Boot Microservices – Learn from Zero
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