🌌 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.

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✨ 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

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🏗️ Architecture

Frontend Applications
          │
          ▼
      NestJS API
          │
          ▼
     Python AI Engine

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🛠️ 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

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📂 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

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🚀 Getting Started

Prerequisites

• Node.js 20+
• Python 3.11+
• Docker
• Docker Compose

Installation

git clone <repository-url>

cd orionpay-backend

docker-compose up --build

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⚙️ Environment Variables

Create a .env file:

DATABASE_URL=
REDIS_URL=
JWT_SECRET=
OPENAI_API_KEY=
BLOCKCHAIN_RPC_URL=

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🐳 Running with Docker

docker-compose up

Run in detached mode:

docker-compose up -d

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🧪 Testing

npm run test

npm run test:e2e

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📖 API Documentation

API documentation is available through Swagger:

http://localhost:3000/api/docs

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🔒 Security Features

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

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📄 License

MIT License