Cloud Function for Firebase sendToDevice not showing as notification on ios - ios

Question

Upon sending a successful notification via Cloud Functions for Firebase, the notification is not shown as a push notification on ios device. I have found a couple of similar issues, but none present a clear solution.
cloud function:
exports.sendInitialNotification = functions.database.ref('branches/{branchId}/notifications/{notifId}').onWrite(event => {
const data = event.data.val()
if (data.finished) return
const tokens = []
const notifId = event.params.notifId
const getPayload = admin.database().ref(`notifications/${notifId}`).once('value').then(snapshot => {
const notif = snapshot.val()
const payload = {
notification: {
title: notif.title,
body: notif.message,
},
data: {
'title': notif.title,
'message': notif.message,
'id': String(notif.id),
}
}
if (notif.actions) {
payload.data['actions'] = JSON.stringify(notif.actions)
}
console.log('payload:', payload)
return payload
}, (error) => {
console.log('error at sendInitialNotification getPayload():', error)
})
const getTokens = admin.database().ref(`notifications/${notifId}/users`).once('value').then(snapshot => {
const users = snapshot.forEach((data) => {
let promise = admin.database().ref(`users/${data.key}/profile/deviceToken`).once('value').then(snap => {
if (tokens.indexOf(snap.val()) !== -1 || !snap.val()) return
return snap.val()
}, (error) => {
console.log('error retrieving tokens:', error)
})
tokens.push(promise)
})
return Promise.all(tokens)
}, (error) => {
console.log('error at sendInitialNotification getTokens()', error)
}).then((values) => {
console.log('tokens:', values)
return values
})
return Promise.all([getTokens, getPayload]).then(results => {
const tokens = results[0]
const payload = results[1]
if (payload.actions) {
payload.actions = JSON.stringify(payload.actions)
}
const options = {
priority: "high",
}
admin.messaging().sendToDevice(tokens, payload, options)
.then(response => {
data.finished = true
admin.database().ref(`notifications/${notifId}`).update({success: true, successCount: response.successCount})
console.log('successfully sent message', response)
}).catch(error => {
data.finished = true
admin.database().ref(`notifications/${notifId}`).update({success: false, error: error})
console.log('error sending message:', error)
})
})
})
...and the logs in firebase console:
successfully sent message { results: [ { error: [Object] } ],
canonicalRegistrationTokenCount: 0, failureCount: 1, successCount:
0, multicastId: 7961281827678412000 }
tokens: [
'eS_Gv0FrMC4:APA91bEBk7P1lz...' ]
payload: { notification: { title: 'test07', body: 'test07' }, data:
{ title: 'test07', message: 'test07', id: '1502383526361' } }
...but alas no notification shown on iphone. Im sure I am missing something along the OOO (order of operations) here, but not sure where the snag is. If anyone can point out my flaw please feel free to publicly chastise.
As always thank you in advance and any and all direction is appreciated!

Answer 1

The issue I was seeing was due to the reverse domain id in xcode not matching what was in firebase.
Typo