npx expo install expo-notifications

import * as Notifications from "expo-notifications";

const requestNotificationPermission = async () => {
  const { status: existingStatus } = await Notifications.getPermissionsAsync();
  let finalStatus = existingStatus;

  if (existingStatus !== "granted") {
    const { status } = await Notifications.requestPermissionsAsync();
    finalStatus = status;
  }

  return finalStatus === "granted";
};

npx expo install expo-location

import * as Location from "expo-location";

const requestLocationPermission = async () => {
  const { status } = await Location.requestForegroundPermissionsAsync();
  return status === "granted";
};