Solana Payment Gateway with Jupiter Integration

A sophisticated decentralized payment gateway built on Solana that enables merchants to accept any token while receiving USDC settlements. Powered by Jupiter for optimal token swaps.

Key Features

• Advanced DeFi Features

  • MEV Protection against sandwich attacks
  • TWAP Implementation for large orders
  • Smart Order Routing across DEXes
  • Dynamic Slippage Protection
  • Private Transaction Support

• Merchant Analytics

  • Real-time volume metrics
  • Token breakdown analysis
  • Market insights and trends
  • Liquidity depth analysis
  • Price impact monitoring

• Enhanced Security

  • Multi-RPC endpoint support
  • Automatic failover
  • Comprehensive error handling
  • Transaction monitoring
  • Real-time alerts

• Superior UX/UI

  • Modern glassmorphic design
  • Smooth animations
  • Dark/Light mode support
  • Responsive layout
  • Real-time updates

Crypto Payment Integration

Overview

This payment gateway enables merchants to accept various cryptocurrencies while automatically receiving USDC settlements. Built on Solana and powered by Jupiter's swap infrastructure.

Demo Merchant Setup

• Merchant Address: gosoCfuYsaHjFz69jN8GtM8P4JzfQLdJgNSwMs2XcYd
• Network: Solana Mainnet
• Settlement Token: USDC
• Supported Payment Tokens:
  • SOL (Native Solana)
  • BONK
  • RAY (Raydium)
  • More tokens can be added on request

Integration Steps

1. Component Integration

<PaymentProcessor
  amount={1000000} // Amount in USDC (6 decimals)
  merchantAddress="gosoCfuYsaHjFz69jN8GtM8P4JzfQLdJgNSwMs2XcYd"
  supportedTokens={SUPPORTED_TOKENS}
  onSuccess={handleSuccess}
  onError={handleError}
/>

2. Payment Flow

   • User connects wallet
   • Selects payment token
   • Reviews quote with slippage
   • Confirms transaction
   • Automatic swap to USDC
   • Instant merchant settlement

3. Settlement Process

   • Real-time token swap via Jupiter
   • Direct USDC transfer to merchant
   • Transaction confirmation
   • Webhook notifications (optional)

Security Features

• Non-custodial architecture
• Secure wallet connections
• Transaction signing verification
• Rate limiting protection
• Slippage controls

Testing

Visit http://localhost:3001/demo to test the payment flow.

Technical Stack

• Frontend: Next.js 13.4.19, TailwindCSS
• Blockchain: Solana Web3.js, Jupiter SDK
• State Management: React Hooks
• Animation: Framer Motion
• Styling: Tailwind with custom plugins

Installation

1. Clone the repository:

git clone [repository-url]
cd crypto_payment

2. Install dependencies:

npm install

3. Create .env.local:

NEXT_PUBLIC_SOLANA_NETWORK=mainnet-beta
NEXT_PUBLIC_RPC_ENDPOINT=https://api.mainnet-beta.solana.com

4. Run development server:

npm run dev

5. Build for production:

npm run build
npm run start

Implementation Details

1. Smart Routing

   • Optimal route calculation
   • MEV protection
   • Price impact analysis
   • Dynamic slippage adjustment

2. Analytics Engine

   • Real-time market data
   • Volume analytics
   • Performance metrics
   • Trading insights

3. Security Features

   • Multi-RPC failover
   • Transaction monitoring
   • Error recovery
   • Rate limiting

Use Cases

1. E-commerce Integration

   • Easy plugin integration
   • Automatic settlements
   • Transaction tracking
   • Payment analytics

2. DeFi Applications

   • Token swaps
   • Liquidity provision
   • Yield optimization
   • Risk management

3. Enterprise Solutions

   • Custom API access
   • White-label options
   • Advanced analytics
   • Premium support

Documentation

Comprehensive documentation is available in the /docs directory:

• API Reference
• Integration Guide
• Security Best Practices
• Troubleshooting Guide

Contributing

We welcome contributions! Please see our contributing guide for details.

License

This project is licensed under the MIT License.

Acknowledgments

• Jupiter Protocol
• Solana Foundation
• OpenSource Community