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Spring Boot Backend Template

A production-ready, extensible backend boilerplate built with Java and Spring Boot — designed to save developers hours of setup time when building full-stack applications.

This template provides a secure, scalable, and modular starting point with built-in authentication, role management, database migrations, and common backend utilities. It’s ideal for solo developers, rapid prototyping, or small teams looking to kickstart backend development without reinventing the wheel.


Features

Authentication & Security

  • JWT-based authentication with access/refresh token flows
  • OTP token support (e.g., for email verification, password resets)
  • Multi-device session management
  • Role-Based Access Control (RBAC) with a flexible roles system
  • Rate limiting using Bucket4j (per-IP request throttling)

Architecture & Code Design

  • Modular RESTful API design using Spring Boot
  • Repository abstraction with Spring Data JPA
  • DTOs for request/response encapsulation
  • Entity relationships and querying via JPA

Database & Migrations

  • Flyway SQL scripts for database versioning and pre-initialized schema
  • Tables for:
    • Users
    • Tokens
    • TokenType
    • UserRoles
    • Documents
    • Collections
  • Default seed data (optional, can be modified)

Auth Flows

  • Signup with email verification
  • Login
  • Forgot password / password reset
  • Email verification

Scheduled Tasks

  • Cron jobs for cleanup and token/database maintenance (e.g., delete expired tokens)

Logging

  • Centralized and configurable logging using Log4j2

Use Case

This template provides developers with a solid starting point for building backend services in full-stack applications. You can customize and extend it to fit your project needs. Whether you're building a mobile app, a web dashboard, or an internal tool, this backend gives you:

  • A working JWT auth system out of the box
  • Basic role-based access to endpoints
  • Predefined base models and clean architecture to build on
  • A time-saving alternative to building everything from scratch

TODO / Roadmap

This project is still a work-in-progress. While it’s fully functional for many use cases, several important improvements and additions are planned to be made in the future:

Core Improvements

  • Add CI/CD pipeline setup (e.g., GitHub Actions for build/test/lint)
  • Dockerfile and docker-compose.yml for containerized local development
  • Environment variable management (e.g., Spring profiles + .env support)

Documentation

  • Setup guide and installation steps
  • API documentation (via Swagger or Postman collection)
  • Example curl/Postman requests for:
    • Login / Signup
    • Refresh token flow
    • OTP verification
  • Developer notes (how to extend models, write migrations, etc.)

Testing

  • Add unit and integration tests (e.g., for auth, token flows, rate limiting)
  • Mocking examples for repository/service layers

Additional Features

  • Pagination, filtering, and sorting for REST endpoints
  • Soft delete support for key models (e.g., users, documents)
  • Auditing fields (created_at, updated_at, created_by, etc.)
  • Optional multi-tenancy support (for org-based apps)
  • Make rate limiting easily configurable or optional
  • Modularize core features for easier enabling/disabling

Getting Started (Coming Soon)

Documentation and setup steps will be added here once the project is closer to version 1.0.

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Scalable Boilerplate Springboot Backend

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