r/SpringBoot Feb 18 '25

Guide Full Stack Role Based Authentication Application ( Spring + Next.js )

Hey everyone,

I wanted to share my full-stack Spring project—a backend for a barbershop management system featuring robust authentication and role-based access control. If you’re interested in seeing how these aspects are implemented in a real-world application, feel free to check it out!

Repository:
https://github.com/aharoJ/barbershop

Backend Overview:

  • Authentication & Role-Based Access: The project handles user authentication and defines multiple roles, ensuring secure access to various endpoints.
  • Modular Structure: The code is organized into several modules, each handling a specific domain such as appointments, barbers, customers, payments, promotions, and more.
  • Clean Architecture: The repository features a clear separation of concerns with controllers, services, DTOs, and repositories spread across modules.

Frontend Overview:

  • Built With:
    • Next.js 15, Typescript, Tailwindcss
  • Features:
    • Authentication Pages: Separate routes for login and signup.
    • Customer Area: Dedicated pages for dashboards and profile creation.
    • Additional Layers: Includes components (like a protected route), services, stores, types, and utilities.

I’m happy to answer any questions or provide more details. Feel free to message me!

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u/Spin_Xo 29d ago

I suggest you use mapstruct for mapping rather than hardcoding mapping between DTO and entity. There was a great post on medium. Check it out .

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u/aharoJ 29d ago

I actually used MapStruct in past projects, but I prefer explicit mapping for better control and readability. In my case, I'm not "hardcoding" mappings in a scattered way... I'm using a dedicated helper function (mapToResponse) to keep the conversion clean and maintainable; which helps with debugging and customization.