Spring Security Practice #17 | Authenticate User from JWT Token (SecurityContextHolder)
In this video, we finish setting up our JWT authentication filter in Spring Boot.
I'll explain how to validate the token, extract the user's email, and save the authentication in the SecurityContextHolder.
You'll learn:
How to check the token's validity with isTokenValid()
Extract the information (email) from the JWT
Create a UsernamePasswordAuthenticationToken object
Update the Spring Security context to authenticate the user
This is a crucial step in understanding how JWT authentication works in Spring Security.
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