JWT Authentication and Authorization in Spring Boot
In this tutorial, we explore JWT-based authentication and authorization in Spring Boot using Spring Security. You’ll learn why JSON Web Tokens are widely used in modern applications, how they enable stateless security, and how they fit naturally into microservice architectures.
We cover how JWTs work, how tokens are signed and verified, and why public-key verification is preferred when multiple services need to validate the same token. You’ll also see the difference between symmetric and asymmetric signing, and how roles and claims inside a JWT are used for fine-grained authorization.
This video is ideal for developers who want a practical, architecture-level understanding of JWT security in Spring Boot, especially in distributed or microservice-based systems.
Topics covered:
What JWT is and why it’s used
Stateless authentication with Spring Security
JWT signing and verification
HS256 vs RS256
Token verification in microservices
Using claims for authorization
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