pay.js

// Option 1: Duplicating the function
async function payWithPayPal(payload) {
  setLoading(true);
  await apis.paypal(payload);
  trackWithAnalytics({ method: 'paypal', amount: payload.amount });
  setLoading(false);
}
async function payWithCreditCard(payload) {
  setLoading(true);
  await apis.creditcard(payload);
  trackWithAnalytics({ method: 'paypal', amount: payload.amount });
  setLoading(false);
}

// Option 2: "Creating an abstraction" to "pay" with any payment method
const paymentMethods = ['paypal', 'creditcard'];
async function pay(paymentMethod, payload) {
  setLoading(true);
  await apis[paymentMethod](payload);
  trackWithAnalytics({ method: paymentMethod, amount: payload.amount });
  setLoading(false);
}