Spring boot jwt tutorial

Spring boot Security + JWT Demo Example

Here I have Created a maven project and configured JSON WEB TOKEN(JWT) with Spring Boot.

JWT Will Perform below 2 operations:

1. Generate JWT Token - We Expose a POST API on /authenticate Endpoint. And Passing correct username and password to generate a JSON Web Token(JWT).

2. Validate JWT Token - If user tries to access GET API on /testuri Endpoint and passing The generated Token in header as Authorization Bearer token. So It will allow access only if request has a valid JSON Web Token(JWT)

JWT Token Generate with Valid credentials :

Make a POST request with url http://localhost:8089/authenticate. Body should have valid username and password. Here I used username : "ruhul" and password : "password". Please make sure that body should be in JSON format. If username and password is valid then it will return a token and success Response with 200 Status code. Example is below :

Generate JWT Token

Validate JWT Token & Make Rest Api call :

Try to access the url http://localhost:8089/testuri using the above generated token in the header as Bearer Token. If the Authorization Bearer token is valid it will be return a valid response.

Example is below: Authenticate JWT Token