🌌 OrionPay Backend

AI-Powered Multi-Chain Payment Infrastructure

OrionPay Backend is a hybrid backend platform that combines NestJS microservices with a Python AI Engine to deliver intelligent, secure, and scalable payment infrastructure for modern financial applications.

✨ Features

Multi-chain payment processing
Bulk payment execution
Voice-initiated transactions
AI-powered fraud detection
AI price analysis and routing
Payment modules marketplace
Smart transaction monitoring
Wallet and account management

🏗️ Architecture

Frontend Applications
          │
          ▼
      NestJS API
          │
          ▼
     Python AI Engine

🛠️ Tech Stack

Technology	Purpose
NestJS	API and business logic
Python	AI and machine learning services
FastAPI	AI service APIs
PostgreSQL	Primary database
Redis	Caching and queues
Docker	Containerization
Blockchain SDKs	Multi-chain integrations

📂 Project Structure

orionpay-api/
│
├── services/                 # Microservices
│   ├── api/                  # NestJS API service
│   │   ├── src/              # API source code
│   │   │   ├── app.controller.ts
│   │   │   ├── app.service.ts
│   │   │   ├── app.module.ts
│   │   │   └── main.ts
│   │   ├── test/             # API E2E tests
│   │   ├── dist/             # Compiled API output
│   │   ├── package.json      # API dependencies
│   │   ├── tsconfig.json     # TypeScript configuration
│   │   └── nest-cli.json     # NestJS CLI configuration
│   │
│   └── ai/                   # Python AI Engine service
│       ├── main.py           # FastAPI entry point
│       ├── models/           # AI/ML models
│       ├── services/         # AI services (fraud detection, routing)
│       └── requirements.txt  # Python dependencies
│
├── docker/                   # Docker configuration files
│   ├── api.Dockerfile
│   └── ai.Dockerfile
├── docs/                     # Documentation
├── scripts/                  # Utility scripts
├── docker-compose.yml        # Docker compose configuration
├── .env                      # Root environment variables
├── .env.example              # Example environment variables
└── README.md

🚀 Getting Started

Prerequisites

Node.js 20+
Python 3.11+
Docker
Docker Compose

Installation

git clone <repository-url>

cd orionpay-backend

docker-compose up --build

⚙️ Environment Variables

Create a .env file:

DATABASE_URL=
REDIS_URL=
JWT_SECRET=
OPENAI_API_KEY=
BLOCKCHAIN_RPC_URL=

🐳 Running with Docker

docker-compose up

Run in detached mode:

docker-compose up -d

🧪 Testing

npm run test

npm run test:e2e

📖 API Documentation

API documentation is available through Swagger:

http://localhost:3000/api/docs

🔒 Security Features

JWT authentication
Rate limiting
Fraud detection engine
Transaction monitoring
Role-based access control

📄 License

MIT License

akargi/orionpay-api

README