Cross-Border Payment Orchestration with Currency APIs: 47% Faster International Settlements

// Redis-based rate caching for payment orchestration
import Redis from 'ioredis';
import { CurrencyExchangeClient } from '@currency-exchange/sdk';

const redis = new Redis(process.env.REDIS_URL);
const client = new CurrencyExchangeClient();

export async function getCachedRate(pair: string) {
  const cacheKey = `rate:${pair}`;

  // Check cache first (TTL: 1 second for real-time accuracy)
  const cached = await redis.get(cacheKey);
  if (cached) {
    return JSON.parse(cached);
  }

  // Fetch fresh rate from API
  const [from, to] = pair.split('/');
  const rate = await client.getRate({ from, to, amount: 1 });

  // Cache with 1-second TTL for optimal freshness
  await redis.setex(cacheKey, 1, JSON.stringify({
    rate: rate.rate,
    timestamp: Date.now(),
    expiresAt: Date.now() + 1000
  }));

  return rate;
}

// Payment Orchestration with Currency Exchange API
import { CurrencyExchangeClient } from '@currency-exchange/sdk';

const client = new CurrencyExchangeClient({
  apiKey: process.env.CURRENCY_API_KEY,
  timeout: 50 // Sub-50ms response time
});

// Intelligent payment routing
async function routePayment(payment: PaymentRequest) {
  // Get real-time exchange rate
  const rate = await client.getRate({
    from: payment.sourceCurrency,
    to: payment.targetCurrency,
    amount: payment.amount
  });

  // Calculate optimal settlement path
  const route = await determineOptimalRoute({
    currencies: [payment.sourceCurrency, payment.targetCurrency],
    amount: payment.amount,
    priority: 'speed' // or 'cost' for cost optimization
  });

  return {
    quotedRate: rate.rate,
    estimatedSettlement: route.settlementTime,
    fees: route.totalFees,
    execute: () => executePayment(route, rate)
  };
}