Spring Boot REST API Starter Kit (JWT, Docker, PostgreSQL)

Save days of setup and start building secure REST APIs immediately.

This Spring Boot REST API Starter Kit is a production-ready backend foundation built for developers, freelancers, and teams who want to create secure, scalable, and maintainable REST APIs using modern Spring Boot best practices.

Built by a Java & AWS Solution Architect with 20+ years of industry experience, this kit reflects real-world architecture patterns used in production systems — not tutorial code.

🎯 What This Kit Solves

Most Spring Boot projects waste time on:

Authentication & security setup

Boilerplate CRUD patterns

Exception handling & validation

Docker & database configuration

Swagger & API documentation

This starter kit gives you all of that, done correctly, so you can focus on business logic.

📦 What’s Included SpringBoot REST API Kit

Spring Boot 3 + Java 17 REST API project

JWT Authentication & Authorization

Access token + refresh token

Role-based access control (ROLE_USER, ROLE_ADMIN)

User Management APIs

Secure registration & login

Pagination & filtering

Global Exception Handling

Standardized API error responses

Validation & Best Practices

DTO-based design

Clean layered architecture

Swagger / OpenAPI Documentation

JWT-enabled Swagger UI

PostgreSQL Integration

JPA & Hibernate configuration

Docker & Docker Compose

Multi-stage Dockerfile

Local dev ready

Automated Tests

Controller & service layer tests

Comprehensive README

Setup, run, and extend instructions

⭐ Key Features

Production-ready project structure

Stateless JWT security (Spring Security 6)

Clean REST API design (no entity exposure)

Dockerized for local & cloud deployment

Easily extendable for microservices or cloud platforms

📁 Included Files

Complete Maven project source code

DTOs, entities, repositories, services, controllers

Security configuration & JWT utilities

Dockerfile & docker-compose.yml

Test classes

Detailed [README.md](https://github.com/selvapa/Spring-Boot-REST-API-Starter-Kit-JWT-Docker-PostgreSQL-)

Source Code Kit : https://selvapa.gumroad.com/l/springboot-RESTAPI-starterkit

💡 Who This Is For

✔ Java / Spring Boot developers
✔ Backend engineers
✔ Freelancers & consultants
✔ Startup teams
✔ Anyone building secure REST APIs

❌ Not for:

Absolute beginners with no Java knowledge

UI / frontend-only developers

🖥 System Requirements

Java 17+

Maven 3.8+

Docker & Docker Compose (recommended)

PostgreSQL (optional — Docker provided)

📜 License

MIT License included

Allowed for personal and commercial projects

Redistribution or resale as-is is not allowed