A revolutionary micro-billing platform that enables users to pay only for the digital services they actually use, featuring real-time billing, crypto wallet integration, and live streaming capabilities.
- Problem Statement
- Solution Overview
- Key Features
- Technology Stack
- Architecture
- Project Structure
- Installation & Setup
- API Documentation
- Smart Contracts & Blockchain
- Usage Examples
- Testing
- Deployment
- Contributing
- License
- Rigid Payment Models: Traditional services require upfront payments or fixed subscriptions, regardless of actual usage
- Lack of Granular Control: Users cannot pay for exact service consumption (per minute, per feature)
- Limited Privacy: Financial transactions often expose user spending patterns
- Complex Integration: Service providers struggle to implement flexible billing systems
- High Entry Barriers: Small service providers cannot afford sophisticated billing infrastructure
- Micro-billing Solutions: No comprehensive platform for real-time, usage-based billing
- Privacy-First Payments: Limited options for private, crypto-based micro-transactions
- Unified Platform: Fragmented solutions for streaming, consultations, and digital services
PayGo is a comprehensive pay-as-you-go platform that revolutionizes digital service billing through:
- Real-time Micro-billing: Pay per minute/second of service usage
- Privacy-First Architecture: Zcash integration for shielded transactions
- Unified Marketplace: Single platform for multiple service types
- Role-Based Ecosystem: Users, vendors, and administrators with tailored experiences
- Users: Pay only for consumed services with transparent pricing
- Vendors: Earn from service provision with automated billing
- Platform: Revenue through transaction fees and premium features
- Role-Based Access: User (consumer), Vendor (provider), Admin (system)
- Secure Authentication: JWT-based auth with encrypted passwords
- Profile Management: Comprehensive user and vendor profiles
- Crypto Integration: Support for ZEC, WZEC, USDT, USDC, ETH, DAI
- PayGo UID: Unique identifier for seamless service integration
- Real-time Billing: Per-minute/second charge calculation
- Privacy Protection: Shielded Zcash addresses for transaction privacy
- Agora Integration: High-quality video streaming with low latency
- Multi-Participant Sessions: Host-audience streaming capabilities
- Service Marketplace: Browse and subscribe to vendor services
- Consultation System: Real-time user-vendor communication
- Spending Analytics: Detailed usage and cost breakdown
- Vendor Earnings: Comprehensive revenue tracking
- Performance Metrics: Service quality and usage statistics
- Real-time Notifications: Balance alerts and session updates
- Socket.IO Integration: Live session management and notifications
- Cost Updates: Real-time billing during active sessions
- Low Balance Alerts: Automatic warnings at 20% balance threshold
- Session Monitoring: Live usage tracking and quality metrics
{
"framework": "Next.js 16",
"language": "TypeScript",
"styling": "Tailwind CSS",
"ui-components": "Radix UI",
"streaming": "Agora RTC SDK",
"charts": "Recharts",
"forms": "React Hook Form + Zod",
"animations": "Framer Motion"
}{
"runtime": "Node.js 18+",
"framework": "Express.js",
"database": "MongoDB",
"authentication": "JWT",
"real-time": "Socket.IO",
"validation": "Custom middleware",
"logging": "Winston",
"testing": "Jest + Supertest"
}{
"language": "Rust",
"framework": "Actix-web",
"database": "PostgreSQL + SQLite",
"blockchain": "Web3 + Ethers",
"cryptocurrency": "Zcash integration",
"scheduling": "Tokio Cron",
"caching": "Redis"
}- Agora: Live streaming and video conferencing
- Chipi: Crypto wallet API
- Twilio: SMS notifications
- Email Service: Transaction confirmations
- Zcash: Privacy-focused cryptocurrency
┌─────────────────────────────────────────────────────────────┐
│ PayGo Platform │
├─────────────────────────────────────────────────────────────┤
│ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │
│ │ Frontend │ │ Backend │ │ Billing │ │
│ │ Next.js │◄──►│ Node.js │◄──►│ Rust │ │
│ │ React │ │ Express │ │ Actix-web │ │
│ └─────────────┘ └─────────────┘ └─────────────┘ │
├─────────────────────────────────────────────────────────────┤
│ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │
│ │ MongoDB │ │ PostgreSQL │ │ Redis │ │
│ │ Sessions │ │ Billing │ │ Cache │ │
│ └─────────────┘ └─────────────┘ └─────────────┘ │
├─────────────────────────────────────────────────────────────┤
│ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │
│ │ Zcash │ │ Agora │ │ Chipi │ │
│ │ Blockchain │ │ Streaming │ │ Wallet │ │
│ └─────────────┘ └─────────────┘ └─────────────┘ │
└─────────────────────────────────────────────────────────────┘
- Frontend Layer: User interface and client-side logic
- API Gateway: Request routing and authentication
- Business Logic: Service management and user operations
- Billing Engine: Real-time payment processing
- Blockchain Layer: Crypto wallet and transaction management
- External Services: Third-party integrations
pay-go-app-build/
├── paygofrontend/ # Next.js Frontend Application
│ ├── app/ # Next.js App Router
│ ├── components/ # Reusable React Components
│ ├── lib/ # Utilities and Hooks
│ ├── styles/ # Global Styles
│ └── public/ # Static Assets
├── paygoback/ # Node.js Backend API
│ ├── src/
│ │ ├── controllers/ # Business Logic
│ │ ├── models/ # Database Models
│ │ ├── routes/ # API Routes
│ │ ├── middleware/ # Custom Middleware
│ │ ├── utils/ # Helper Functions
│ │ └── services/ # External Service Integrations
│ ├── billing/ # Rust Billing Service
│ │ ├── src/ # Rust Source Code
│ │ ├── Cargo.toml # Rust Dependencies
│ │ └── migration.sql # Database Schema
│ └── tests/ # API Tests
└── README.md # This file
- Node.js 18+ and npm
- MongoDB 4.4+
- PostgreSQL 13+ (for billing service)
- Rust 1.70+ (for billing service)
- Redis (optional, for caching)
-
Clone the repository
git clone <repository-url> cd pay-go-app-build
-
Setup Backend API
cd paygoback npm install cp .env.example .env # Configure environment variables npm run dev
-
Setup Billing Service
cd billing cargo build --release cargo run -
Setup Frontend
cd ../paygofrontend npm install npm run dev
# Database
MONGODB=mongodb://localhost:27017/paygo
POSTGRES_URL=postgresql://user:pass@localhost/paygo_billing
# Authentication
JWT_SECRET=your-super-secret-jwt-key
JWT_LIFETIME=24h
# Blockchain
ZCASH_RPC_URL=http://localhost:8232
ETHEREUM_RPC_URL=https://mainnet.infura.io/v3/YOUR_KEY
# External Services
AGORA_APP_ID=your-agora-app-id
AGORA_APP_CERTIFICATE=your-agora-certificate
CHIPI_API_KEY=your-chipi-api-key
# Notifications
EMAIL_USER=your-email@gmail.com
EMAIL_PASS=your-email-password
TWILIO_SID=your-twilio-sid
TWILIO_AUTH_TOKEN=your-twilio-tokenPOST /api/v1/auth/register
POST /api/v1/auth/login
GET /api/v1/auth/meGET /api/v1/wallet/balance
POST /api/v1/wallet/deposit
POST /api/v1/wallet/transfer
GET /api/v1/wallet/analyticsGET /api/v1/service
POST /api/v1/service # Vendor only
PUT /api/v1/service/:id # Vendor onlyPOST /api/v1/streams/start
PATCH /api/v1/streams/:id/stop
GET /api/v1/streams/my-sessions// Connect to server
const socket = io('http://localhost:5000');
// Listen for balance updates
socket.on('balance-update', (data) => {
console.log('New balance:', data.balance);
});
// Listen for session alerts
socket.on('session-alert', (alert) => {
console.log('Alert:', alert.message);
});- Shielded Addresses: Privacy-preserving wallet addresses
- Transaction Shielding: Hide transaction amounts and participants
- PayGo UID: Unique identifier for service integration
- Zcash Mainnet: Primary privacy network
- Ethereum: ERC-20 token support
- Cross-chain: Wrapped Zcash (WZEC) for interoperability
// Example: Process micro-payment
async fn process_payment(
paygo_uid: &str,
amount: Decimal,
service_type: ServiceType
) -> Result<TransactionResult, BillingError> {
// Validate PayGo UID
// Check wallet balance
// Process Zcash transaction
// Update billing records
// Return transaction result
}// 1. User selects service and starts session
const response = await fetch('/api/v1/streams/start', {
method: 'POST',
headers: {
'Authorization': `Bearer ${userToken}`,
'Content-Type': 'application/json'
},
body: JSON.stringify({
serviceId: 'service_123',
device: 'Chrome Desktop'
})
});
const { session, agoraToken, userUid } = await response.json();
// 2. Initialize Agora streaming
const client = AgoraRTC.createClient({ mode: 'rtc', codec: 'vp8' });
await client.join(agoraAppId, session.agoraChannel, agoraToken, userUid);
// 3. Session runs with real-time billing
// Balance deducted per minute automatically// Vendor creates new service
const service = await fetch('/api/v1/service', {
method: 'POST',
headers: {
'Authorization': `Bearer ${vendorToken}`,
'Content-Type': 'application/json'
},
body: JSON.stringify({
name: 'Video Consultation',
description: 'Professional video consultation service',
type: 'video',
rate: 2.50, // $2.50 per minute
category: 'consultation'
})
});cd paygoback
npm test # Run all tests
npm run test:watch # Watch mode
npm test -- auth.test.js # Specific test filecd billing
cargo test
cargo test -- --nocapture # Show output# Test streaming session flow
curl -X POST http://localhost:5000/api/v1/streams/start \
-H "Authorization: Bearer <token>" \
-H "Content-Type: application/json" \
-d '{"serviceId":"test_service","device":"test"}'-
Configure Environment Variables
NODE_ENV=production MONGODB=mongodb://prod-server/paygo REDIS_URL=redis://prod-cache:6379
-
Build and Deploy
# Backend cd paygoback npm run build pm2 start ecosystem.config.js # Frontend cd paygofrontend npm run build npm start # Billing Service cd billing cargo build --release ./target/release/paygo
# Multi-stage build for Rust billing service
FROM rust:1.70 as builder
WORKDIR /app
COPY billing/ .
RUN cargo build --release
# Node.js API
FROM node:18-alpine
COPY paygoback/ /app/
RUN npm ci --only=production
# Next.js Frontend
FROM node:18-alpine as frontend
COPY paygofrontend/ /app/
RUN npm run buildWe welcome contributions! Please follow these steps:
- Fork the repository
- Create a feature branch
git checkout -b feature/amazing-feature
- Make your changes
- Add tests for new features
- Ensure all tests pass
- Commit your changes
git commit -m 'Add amazing feature' - Push to the branch
git push origin feature/amazing-feature
- Open a Pull Request
- Follow ESLint and Prettier configurations
- Write comprehensive tests for new features
- Update documentation for API changes
- Use conventional commit messages
- Maintain code coverage above 80%
This project is licensed under the MIT License - see the LICENSE file for details.
- Agora.io for live streaming infrastructure
- Zcash for privacy-preserving blockchain technology
- Chipi for wallet API services
- Open source community for amazing tools and libraries
- Documentation: Full API Docs
- Issues: GitHub Issues
- Discussions: GitHub Discussions
PayGo v1.0.0 - Revolutionizing digital service billing with privacy-first, real-time micro-payments.
Built with ❤️ using Next.js, Node.js, Rust, and cutting-edge blockchain technology.