Detect fraud globally with confidence

import { FraudDetector } from 'fraud-catcher';

const detector = new FraudDetector({
  rules: ['velocity', 'amount', 'location'],
  thresholds: {
    velocity: 0.8,
    amount: 0.9,
    location: 0.7
  },
  globalThreshold: 0.7
});

const transaction = {
  id: 'tx_123',
  userId: 'user_123',
  amount: 1000,
  currency: 'USD',
  timestamp: new Date(),
  location: { lat: 40.7128, lng: -74.0060, country: 'US' },
  ipAddress: '192.168.1.1'
};

const result = await detector.analyze(transaction);
console.log(result.riskScore); // 0.0-1.0
console.log(result.isFraudulent); // boolean