React Native: How do you implement in-app purchases in React Native?

1import { initConnection, getProducts, requestPurchase } from "react-native-iap";
2
3await initConnection();
4
5const products = await getProducts({ skus: ["premium_monthly"] });
6
7async function buyPremium() {
8  const result = await requestPurchase({ sku: "premium_monthly" });
9  if (result.transactionId) {
10    await verifyOnServer(result);
11  }
12}