React Native: How do you handle React Native app permissions?

1import { check, request, PERMISSIONS, RESULTS } from "react-native-permissions";
2
3async function requestCamera() {
4  const result = await request(
5    Platform.OS === "ios"
6      ? PERMISSIONS.IOS.CAMERA
7      : PERMISSIONS.ANDROID.CAMERA
8  );
9
10  switch (result) {
11    case RESULTS.GRANTED:
12      openCamera();
13      break;
14    case RESULTS.DENIED:
15      showRationale();
16      break;
17    case RESULTS.BLOCKED:
18      openSettings();
19      break;
20  }
21}