Stop Rewriting JWT Code for Every Spring Boot Project

Seydou CISSE — Mon, 24 Mar 2025 15:04:47 +0000

Every time I started a new Spring Boot project, I found myself writing the same JWT authentication setup over and over again. Configure Spring Security, set up token generation, validation, blacklisting.

So, I built JWT Spring Boot Starter to handle it automatically.

What It Does

This starter takes care of JWT authentication so you don’t have to. Just add the dependency, configure a few properties, and voila—you’re ready to go.

Token Generation & Validation: Automatically creates and verifies JWT tokens.
Token Blacklisting: Easily invalidate tokens with a built-in (and optionally replaceable) in-memory blacklist.
Custom Claims & Token Refresh: Supports adding custom claims and automatic token refresh logic.

Quick Start Guide

First, add the dependency in your pom.xml:

<dependency>
    <groupId>io.github.seydoucisse</groupId>
    <artifactId>jwt-spring-boot-starter</artifactId>
    <version>0.1.0</version>
</dependency>

Then, configure your application.yml:


jwt:
  secret: your-very-secure-secret-key-that-is-64-characters
  issuer: your-app-name

And finally, define your UserDetailsService:


@Service
public class MyUserDetailsService implements UserDetailsService {
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        // Add with your user lookup logic
    }
}

That’s it! The starter handles token generation, validation, blacklisting, and integrates seamlessly with Spring Security.

Why Use It?

No need to write JWT auth from scratch
Works out of the box with Spring Security
Customizable token properties and security settings
Supports token blacklisting and refresh tokens

If you’re tired of rewriting the same jwt-based authentication in your Spring Boot app, give JWT Spring Boot Starter a shot!

Check it out the full documentation on jwt-spring-boot-starter.
Feel free to open an issue or submit a pull request.

DEV Community: Seydou CISSE

Stop Rewriting JWT Code for Every Spring Boot Project

What It Does

Quick Start Guide

Why Use It?