Store Payment SDK

A powerful SDK for web2 store owners to accept crypto payments with a 5% fee to the smart contract. Supports multiple chains and tokens.

Features

• Multi-chain support (Ethereum, Polygon, BSC, Celo)
• Multi-token support (ETH and ERC20 tokens)
• Wagmi and ethers.js integration
• Testnet support for all chains
• AI-powered features:
  • Payment analytics
  • Token optimization
  • Smart error handling

Installation

npm install store-payment-sdk

Usage

Basic Setup

import { StorePaymentSDK } from 'store-payment-sdk';

// Initialize with ethers.js
const sdk = new StorePaymentSDK(contract, chainId);

// Or with wagmi
const { data: contract } = useStorePaymentContract(chainId);
const sdk = new StorePaymentSDK(contract, chainId);

AI-Powered Features

Payment Analytics

const analytics = sdk.getPaymentAnalytics();

// Analyze payment patterns
const patterns = await analytics.analyzePaymentPatterns(storeOwner);

// Get fraud score
const fraudScore = await analytics.getFraudScore(transaction);

// Predict token prices
const pricePrediction = await analytics.predictTokenPrice(token);

// Predict transaction volumes
const volumePrediction = await analytics.predictTransactionVolume(storeOwner);

Token Optimization

const optimizer = sdk.getTokenOptimizer();

// Get token recommendations
const recommendations = await optimizer.getTokenRecommendations(storeOwner, amount);

// Get gas optimization
const gasOptimization = await optimizer.getGasOptimization(urgency);

// Get swap recommendations
const swapRecommendation = await optimizer.getSwapRecommendations(fromToken, toToken, amount);

// Evaluate new token support
const evaluation = await optimizer.evaluateTokenSupport(token);

// Get optimal fee structure
const feeStructure = await optimizer.getOptimalFeeStructure();

Error Handling

const errorHandler = sdk.getErrorHandler();

// Analyze errors
const analysis = await errorHandler.analyzeError(error, {
  operation: 'payment',
  params: { amount, token }
});

// Get transaction recovery steps
const recovery = await errorHandler.getTransactionRecovery(transactionHash);

// Get preventive measures
const measures = await errorHandler.getPreventiveMeasures('payment');

// Get natural language error explanation
const explanation = await errorHandler.getErrorExplanation(error);

Supported Chains

Mainnet

• Ethereum
• Polygon
• BSC
• Celo

Testnet

• Ethereum (Goerli, Sepolia)
• Polygon (Mumbai)
• BSC (Testnet)
• Celo (Alfajores)

Smart Contract Features

• 5% fee on all transactions
• Support for native currency (ETH) and ERC20 tokens
• Fee withdrawal by contract owner
• Token management (add/remove supported tokens)

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

MIT