Vouch SDK Fraud Assessment: Score and Flag Transactions

import Vouch from 'vouch-sdk';

const vouch = new Vouch('your-api-key');

async function checkTransaction(userId: string, amount: number) {
  const assessment = await vouch.fraud.assess({
    platformUserId: userId,
    transactionAmount: amount,
  });

  switch (assessment.flag) {
    case 'GREEN':
      // Low risk — proceed automatically
      await processPayment(userId, amount);
      break;

    case 'AMBER':
      // Elevated risk — require step-up verification
      await promptStepUpVerification(userId);
      break;

    case 'RED':
      // High risk — block and alert
      await blockAndNotify(userId, assessment.triggeredSignals);
      break;
  }

  console.log(`Score: ${assessment.score} | Category: ${assessment.category}`);
  console.log('Recommendation:', assessment.recommendation);
  console.log('Triggered signals:', assessment.triggeredSignals);
}