🌟 StellarAid-api

StellarAid Backend is the server-side API powering the StellarAid crowdfunding platform — a blockchain‑enabled system built on the Stellar network to support transparent, secure, and efficient fundraising for social impact initiatives.

Folder structure

/src
  /app.ts                # Express app bootstrap (middleware, routes registry)
  /server.ts             # HTTP server startup

  /config                # configuration & env loading
    env.ts
    logger.ts
    rateLimit.ts
    security.ts

  /database              # DB client & schema (Prisma/TypeORM/knex/etc.)
    index.ts
    prismaClient.ts      # (if using Prisma)
    migrations/          # (tool-specific)

  /common                # shared cross-cutting concerns
    /middlewares
      errorHandler.ts
      notFound.ts
      requireAuth.ts
      validate.ts
    /utils
      crypto.ts
      pagination.ts
      response.ts
    /types
      express.d.ts       # custom Request types (e.g. req.user)
    /events 

📌 Features

🎯 For Donors

• Discover global fundraising campaigns
• Donate in XLM or Stellar assets
• Wallet integration (Freighter, Albedo, Lobstr)
• On-chain transparency: verify all transactions

🎯 For Creators

• Create social impact projects
• Accept multi-asset contributions
• Real-time donation tracking
• Withdraw funds directly on-chain

🎯 For Admins

• Campaign approval workflow
• User & KYC management
• Analytics dashboard

🏗️ Architecture Overview

StellarAid Backend is built with:

• Express js
• MongoDB
• Horizon API integration
• Worker processes (BullMQ)

📚 API Documentation (Swagger)

StellarAid API includes Swagger (OpenAPI) documentation for easy exploration and testing of endpoints.

Accessing Swagger UI

When the application is running with Swagger enabled:

• Swagger UI: http://localhost:3000/docs
• OpenAPI JSON: http://localhost:3000/docs-json

Authentication in Swagger

1. Click the "Authorize" button in the top right of the Swagger UI
2. Enter your JWT token in the format: Bearer <your-token>
3. Click "Authorize" and close the dialog
4. All protected endpoints will now include the Authorization header

Environment Configuration

Swagger is controlled via environment variables:

Variable	Description	Default
NODE_ENV	Environment mode (development, production, test)	development
ENABLE_SWAGGER	Override to enable/disable Swagger explicitly	-

Behavior

• Development: Swagger is enabled by default
• Production: Swagger is disabled by default (set ENABLE_SWAGGER=true to override)
• Explicit override: Set ENABLE_SWAGGER=true or ENABLE_SWAGGER=false to force enable/disable regardless of environment

Rate limiting configuration

The application ships with a built‑in rate limiter based on express-rate-limit. It protects the entire API with a permissive window, and adds a more restrictive policy to all /api/auth endpoints.

Variable	Description	Default
RATE_LIMIT_WINDOW_MS	Time window in milliseconds	900000 (15m)
RATE_LIMIT_MAX	Max requests per window for general routes	100
AUTH_RATE_LIMIT_MAX	Max requests per window for auth routes	10

When a client exceeds the limit the server replies with 429 Too Many Requests and a Retry-After header indicating how many seconds remain in the current window.

Example .env Configuration

# Enable Swagger in production (not recommended for public APIs)
NODE_ENV=production
ENABLE_SWAGGER=true

# Or disable in development
NODE_ENV=development
ENABLE_SWAGGER=false

# Rate limiting (optional overrides)
RATE_LIMIT_WINDOW_MS=900000
RATE_LIMIT_MAX=100
AUTH_RATE_LIMIT_MAX=10

📌 How to Contribute

1. Fork the Repository

Click the "Fork" button in the top‑right of the GitHub repo and clone your fork:

git clone https://github.com/YOUR_USERNAME/stellaraid-api.git
cd stellaraid-api

Backend Setup

bash cp .env.example .env npm install npm run start:dev

2. Create a Branch

git checkout -b feature/add-donation-flow

3. Commit Messages

Use conventional commits:

feat: add wallet connection endpoint
fix: resolve donation API error
docs: update project README
refactor: clean up project creation form

4. Submitting a Pull Request (PR)

Push your branch:

git push origin feature/add-donation-flow

Open a Pull Request from your fork back to the main branch.

📜 License

MIT License — free to use, modify, and distribute.