Firebase https cloud function to send notifications always ends in timeout - firebase

Question

Function execution took 60002 ms, finished with status: 'timeout'
I have cloud function that collects users product & price data, hits an external API to get the latest prices and sends a notification if the price has changed. I've read several similar questions like this but I am in fact sending a response back to the client. I've tried increasing the timeout to 120 seconds, but it still times out. So, I think there might be an issue with how I'm returning promises? Any suggestions?
Here is my code:
exports.pushTestWithRP = functions.https.onRequest((req, res) => {
var uidsAndTokens = [];
ref.child('tokens').once('value').then(snap => {
snap.forEach(childSnap => {
uidsAndTokens.push({
uid: childSnap.key,
deviceToken: childSnap.val()
});
});
return uidsAndTokens;
}).then((uidsAndTokens) => {
var uidsAndCruises = [];
ref.child('watchlist-items/users').once('value').then(snap => {
snap.forEach(childSnap => {
var uid = childSnap.key;
childSnap.forEach(childChildSnap => {
var product = childChildSnap.key;
var productWatchInfo = childChildSnap.val();
uidsAndProducts.push({
uid: uid,
product: product,
watchInfo: productWatchInfo
});
}); // end childChildSnap
}); // end childSnap
return uidsAndProducts;
}).then((uidsAndProducts) => { // end snap watchlist-items/users
var uidsOnly = [];
for (var i=0; i<uidsAndTokens.length; i++) {
uidsOnly.push(uidsAndTokens[i].uid);
}
// user has a FCM token
var uidsAndProductsWithTokens = [];
for (var i=0; i<uidsAndProducts.length; i++) {
//check if exists in tokens array
var currUid = uidsAndProducts[i].uid;
if (uidsOnly.includes(currUid)) {
//console.log('this uid has a token: ', currUid);
uidsAndProductsWithTokens.push(uidsAndProducts[i]);
} else {
//this uid does NOT have a token
}
}
function getTokenForUid(uid) {
for (var i in uidsAndTokens) {
if (uidsAndTokens[i].uid == uid) {
var deviceToken = uidsAndTokens[i].deviceToken;
break;
}
}
return deviceToken;
}
var allPromises = [];
// call API only for uids with tokens
for (var i=0; i<uidsAndProductsWithTokens.length; i++) {
const product = uidsAndProductsWithTokens[i].product;
const uid = uidsAndProductsWithTokens[i].uid;
const deviceToken = getTokenForUid(uid);
const pDates = uidsAndProductsWithTokens[i].watchInfo.pDates;
const pName = uidsAndProductsWithTokens[i].watchInfo.pName;
getCurrentPricesFromAPI(product).then((response) => {
if (typeof response.response != 'undefined') {
const productId = response.response.product.product_id;
const allPrices = response.response.prices;
const promises = [];
// parse thru prices and send notifications
for (var date in pDates) {
// get all current prices and sort by price to get cheapest
var cheapest = [];
for (var i = 0; i < allPrices.length; i++) {
if (allPrices[i].data[productId][date] && allPrices[i].data[productId][date].hasOwnProperty('Inside')) {
const iPrice = allPrices[i].data[productId][date].Inside;
cheapest.push(iPrice);
}
}
if (cheapest[0] > 0) {
cheapest = cheapest.sort(function (a, b) { return a - b; });
if (sDates[date].hasOwnProperty('Inside')) {
const priceDiff = cheapest[0] - sDates[date].Inside.price;
if (priceDiff < -10) {
const payload = {
notification: {
title: pName + ' Price DROP Alert!',
body: 'prices for the ' + date + ' are $' + cheapest[0] + ' (DOWN $' + Math.abs(priceDiff) + ')',
sound: 'default'
}
};
promises.push(admin.messaging().sendToDevice(deviceToken, payload));
}
else if (priceDiff > 10) {
const payload = {
notification: {
title: pName + ' Price Hike Alert',
body: 'prices for the ' + date + ' are $' + cheapest[0] + ' (UP $' + priceDiff + ')',
sound: 'default'
}
};
promises.push(admin.messaging().sendToDevice(deviceToken, payload));
}
}
}
}
allPromises = allPromises.concat(promises);
}
}) // end handle API response
} // end for loop
return allPromises;
}).then((allPromises) => {
return Promise.all(allPromises);
res.send('got tokens and ids');
}).catch(error => {
res.send('there was an error');
});
}); // end uidsAndTokens
}); // end function
I can't figure this out and would appreciate any help!