BadPirate

Summary

iOS doesn't report when an app will be suspended (placed from background into a non-processing state) nor does it seem to fire a notification once the app has resumed. There is some confusion about this as there is a notification when the app becomes "active" or will resign the "active" state, however this is not always the right value needed. iOS Apps have a number of states:

Active: App is in the foreground (frontmost) and there are no notifications or menu's pulled over it. Pulling a menu down or getting an external notification or text message will cause the app to "resign" active, and resume active once the alert has been dealt with.
Background: App is not in the foreground but still processing. This happens briefly before suspend if there are no background tasks running, or can be a permanent state if there is a long running background mode (audio, location, etc) running.

	const functions = require('firebase-functions')
	const admin = require('firebase-admin')
	const cors = require('cors')({
	origin: (origin, callback) => {
	const allowed = ['http://localhost:3000', 'https://yourfinalwebsite.com']
	if (allowed.indexOf(origin) !== -1) {
	return callback(null, true)
	}
	return callback(new Error(`CORS Policy denies ${origin}`), false)
	},

	firebase.auth().onAuthStateChanged((firebaseUser) => {
	if (firebaseUser) {
	return firebaseUser.getIdToken().then((token) => firebase.auth().currentUser.getIdTokenResult()
	.then((result) => {
	if (result.claims['https://hasura.io/jwt/claims']) {
	return token
	}
	const endpoint = 'https://xxx.cloudfunctions.net/refreshToken'
	return fetch(`${endpoint}?uid=${firebaseUser.uid}`).then((res) => {
	if (res.status === 200) {

	const functions = require('firebase-functions')
	const admin = require('firebase-admin')
	const cors = require('cors')({ origin: true })

	admin.initializeApp(functions.config().firebase)

	const updateClaims = (uid) => admin.auth().setCustomUserClaims(uid, {
	'https://hasura.io/jwt/claims': {
	'x-hasura-default-role': 'user',
	'x-hasura-allowed-roles': ['user'],