Skip 3 weeks of backend work. Start shipping today.
A production-ready backend system with auth, payments, admin dashboard, and deployment — built on the same architecture we use for client projects. Buy once, use in every project.
Quick start
git clone → fill .env → vercel --prod → live
You don't need to build everything yourself.
Every hour you spend on auth, payments, and infrastructure is an hour you're not building your product.
Authentication system
- OAuth (Google, GitHub, etc)
- JWT access + refresh rotation
- Automatic account linking
Payment integration
- Stripe + Omise gateways
- Secure webhook handlers
- Complete subscription logic
Admin dashboard
- User data management
- Key business analytics
- Security & moderation controls
API architecture
- Clean multi-layer service design
- Strict DTO validation
- Role-based guards & interceptors
Frontend foundation
- Next.js App Router setup
- Built-in SEO & OpenGraph
- Reusable Tailwind components
Deployment setup
- Vercel-native configuration
- Serverless function optimization
- Zero-downtime deployment
~$ vercel --prod
Vercel CLI 34.0.0
🔍 Inspecting project...
✅ Building NestJS application...
Production: https://api.yulio.app
Ready in 28ms.
184+ hours saved ✨
1 - Click deploy with
Features
Everything a production auth system needs.
Not a tutorial project. A production-grade system, structured by domain. Fully typed, with strict boundaries across every layer.
Multi-provider OAuth
Google, LINE, GitHub, Discord, Microsoft — out of the box. Each provider is a self-contained strategy file. Enable only what you need.
Adding a new provider takes 30 minutes.
Account linking
If a user signs up with email and later logs in with Google using the same email, they get one account — not two. Solved automatically.
Zero duplicate identities.
JWT token rotation
Access tokens (15m) are stateless. Refresh tokens (30d) are stored as bcrypt hashes and rotated on every use. Expired tokens are auto-pruned.
Production-grade security by default.
Swagger docs — always in sync
Every endpoint is documented. Response DTOs implement TypeScript interfaces directly — docs never drift from reality.
Live at /api/docs.
Clean architecture
Enum → Interface → Entity → DTO → Service Interface → Service → Controller → Module. Every layer has a defined contract.
Adding a feature means following the same pattern.
Vercel-native serverless
Built specifically for Vercel from day one. Stateless OAuth flows, no session storage needed. Push to main — live in 30 seconds.
Free tier. Zero infrastructure.
Works perfectly with AI Editors for RAPID development.
OneForAll's clean architecture makes AI code generation reliable. Strict TypeScript contracts mean your AI editor writes production-ready code on the first try.
AI understands structure
Clean architecture means every file follows the same pattern. When you ask an AI to add a feature, it knows exactly where to put it — because the codebase is predictable.
Perfect for Copilot & Cursor
Strict TypeScript, interface contracts, and consistent naming conventions. AI tools generate accurate code because the patterns are already established.
Vibe code faster
Skip the setup. Jump straight into building features. The architecture is solid enough that AI-assisted development produces reliable, production-ready code from day one.
Prompt once, scale everywhere
Because every module follows Enum → Interface → Entity → DTO → Service → Controller, a single prompt pattern works across your entire codebase.
src/
auth/
strategies/
guards/
dto/
auth.service.ts
auth.controller.ts
user/
entity/
dto/
user.service.ts
products/ ← AI adds here
entity/
dto/
products.service.ts
products.controller.ts
// Interface defines the contract
export interface IProductService {
findAll(): Promise<Product[]>;
create(dto: CreateProductDto): Promise<Product>;
}
// Service implements it exactly
export class ProductService
implements IProductService {
// AI knows this must match
}
Terminal
$ git clone oneforall
Cloning into 'oneforall'...
$ cp .env.example .env
$ npm install
added 287 packages in 4s
$ vercel --prod
🔗 https://your-app.vercel.app
✅ Ready in 28s
→ Start building features, not boilerplate.
Same prompt, any module:
> "Add [module] with CRUD, Mongoose schema, and Swagger docs following the existing pattern."
→ All match the same architecture. All work first try.
Technology Stack
Built on proven tools.
Every layer chosen for production reliability, not trends.
Stack Overview
Auth Providers
Local (email + password)
passport-local
passport-google-oauth20
LINE
passport-oauth2
GitHub
passport-github2
Discord
passport-discord
Microsoft
passport-microsoft
Plug and play
To disable a provider — comment out its strategy and routes. That's it. To add a new one — create a strategy file and register it. Takes 30 minutes.
Architecture
Everything structured by domain.
We don't believe in magic. The codebase uses strict boundaries, explicit dependency injection, and uniform layered patterns so you can scale indefinitely.
01 // REQUEST LIFECYCLE
Request Lifecycle
Every request passes through the same pipeline — validation, authentication, authorization, handling, and response wrapping. No exceptions.
ValidationPipe
Strips unknown fields, validates DTO
JwtGuard
Checks @Public() — if not, verifies Bearer
JwtStrategy
Decodes JWT → findById() → attaches user
RolesGuard
@Roles() metadata vs user role
Controller
@CurrentUser(), @Body(), @Param()
Service
Business logic, DB calls, token gen
TransformInterceptor
Wraps { success, data, timestamp }
02 // CONSISTENT RESPONSE SHAPE
Consistent response shape
Every endpoint returns the same structure. No manual wrapping. No inconsistent error shapes. Every client gets the same contract.
// Success
{
"success": true,
"statusCode": 200,
"data": { ... },
"timestamp": "2026-03-22..."
}// Error — same shape
{
"success": false,
"statusCode": 401,
"message": "Invalid email",
"path": "/api/auth/login"
}03 // ROLE-BASED ACCESS CONTROL
Role-based access control
Two decorators. That's it. No config files, no permissions tables. Set the role, protect the route.
@Roles(UserRole.ADMIN)
@Get('admin/dashboard')
getAdminDashboard(
@CurrentUser() user: ICurrentUser
) {
// Only admins reach here
}04 // LAYER PATTERN
Layer pattern
Every module follows the same structure. Adding a new feature means following the same pattern. Nothing to invent, nothing to guess.
// New module = same shape
src/products/
interfaces/product.service.interface.ts
entity/product.entity.ts
dto/create-product.dto.ts
products.service.ts
products.controller.ts
products.module.ts
Pricing
Buy once. Use everywhere. Forever.
$299 replaces 2–4 weeks of work on every project you build. No subscriptions, no per-seat fees.
Backend Foundation
Everything you need to stop rebuilding auth. Clone and go.
- Multi-provider OAuth (6 providers)
- JWT + refresh token rotation
- Account linking — zero duplicates
- Email automation (Nodemailer + Brevo)
- Swagger API documentation
- Clean architecture (NestJS 11)
- Vercel-native serverless deployment
- Role-based access control
- Full TypeScript strict mode
- Payment Gateway (Stripe + Omise)
- NextJS — NextAuth production frontend
- Reusable Tailwind UI + Framer Animations
Full-Stack Production System
Everything in the foundation + frontend, payments, admin, and every future update.
Use in unlimited projects. No recurring fees.
- Everything in Core, plus:
- Payment Gateway (Stripe + Omise)
- NextJS — NextAuth production frontend
- Reusable Tailwind UI + Framer Animations
- 20+ DaisyUI Themes with Auto Dark Mode
- OpenGraph & SEO meta tags built-in
- Complete Admin Dashboard
- User Management & Analytics
- Auditing & Moderation tools
- Priority updates & new features
- Use in unlimited projects — forever
One purchase. Every project. No limits. No subscriptions. You own the code.
Stop building infrastructure. Start building your product.
3 weeks of backend work, already done. One purchase — every project, forever. Start shipping the features that actually matter.