I have updated the question as found the root cause of the issue.
As I have hosted my React SSR app which uses firebase database in the client serving by one of the cloud function named app throwing an error of Error: FIREBASE FATAL ERROR: Database initialized multiple times. Please make sure the format of the database URL matches with each database() call.. When I comment out one by one and deploy, works perfectly. But when I deploy together doesn't work. How do I separate these two keeping both at the same repo?
ORIGINAL Question: Why firebase cloud function throwing an error of 'The default Firebase app does not exist.'?
So I am trying out firebase function for the first time. admin.messaging() throwing me the following error. Help me figure out why?
If I look at the console I get results till console.log('deviceToken', deviceToken);
so whats wrong in const messageDone = await admin.messaging().sendToDevice(deviceToken, payload);?
const functions = require('firebase-functions');
const admin = require('firebase-admin');
exports.updateUnreadCount = functions.database.ref('/chats/{chatId}/{messageId}')
.onCreate(async(snap, context) => {
const appOptions = JSON.parse(process.env.FIREBASE_CONFIG);
appOptions.databaseAuthVariableOverride = context.auth;
const adminApp = admin.initializeApp(appOptions, 'app');
const { message, senderId, receiverUid } = snap.val();
console.log(message, senderId, receiverUid);
console.log('------------------------');
const deleteApp = () => adminApp.delete().catch(() => null);
try {
const db = adminApp.database();
const reciverUserRef = await db.ref(`users/${receiverUid}/contacts/${senderId}/`);
console.log('reciverUserRef', reciverUserRef);
const deviceTokenSnapshot = await reciverUserRef.child('deviceToken').once('value');
const deviceToken = await deviceTokenSnapshot.val();
console.log('deviceToken', deviceToken);
const payload = {
notification: {
title: 'Test Notification Title',
body: message,
sound: 'default',
badge: '1'
}
};
const messageDone = await admin.messaging().sendToDevice(deviceToken, payload);
console.log('Successfully sent message: ', JSON.stringify(messageDone));
return deleteApp().then(() => res);
} catch (err) {
console.log('error', err);
return deleteApp().then(() => Promise.reject(err));
}
});
Update1: According to this https://firebase.google.com/docs/cloud-messaging/send-message#send_to_a_topic, admin.messaging().sendToDevice(deviceToken, payload) APIs are only available in the Admin Node.js SDK?
So switched to
const payload = {
data: {
title: 'Test Notification Title',
body: message,
sound: 'default',
badge: '1'
},
token: deviceToken
};
const messageDone = await admin.messaging().send(payload);
Which is not working either. Getting an error Error: The default Firebase app does not exist. Make sure you call initializeApp() before using any of the Firebase services. Any lead will be helpful.
EDIT: Finally got the function working.
My index.js is exporting to functions, follwoing
exports.app = functions.https.onRequest(app); //React SSR
exports.updateChat = functions.database.ref('/chats/{chatId}/{messageId}').onCreate(updateChat);
exports.app is a react ssr function, which I am using to host my site. This uses database too. and throwing error of multiple database instance.
When I comment out one by one and deploy, works perfectly. But when I deploy together doesn't work. How do I separate these two keeping both at the same repo? Any suggestions, please?
You can initialise db outside export function.
const admin = require('firebase-admin');
const adminApp = admin.initializeApp(appOptions, 'app')
//continue code
Update:
const admin = require('firebase-admin');
const adminApp = admin.initializeApp(options);
async function initialize(options, apps = 'app') {
try {
const defaultApp = adminApp.name
if(defaultApp) {
const adminApp1 = admin.initializeApp(apps);
}else {
const adminApp1 = admin.initializeApp(options, apps);
}
}catch(err) {
console.error(err);
}
}
Modify this snippet as per your need and try it out
It abstracts initialize of app in another function. Just call this function at appropriate place in your code.
Related
I am trying to deploy a callable firebase cloud function to generate an email verification link and then send an email with sendgrid containing the link.
When I deploy I keep getting the error
"code":3,"message":"Function failed on loading user code. This is likely due to a bug in the user code. Error message: Error: please examine your function logs to see the error cause".
I have succesfully deployed 4 other functions so my firebase & other env variables do not seem to be the problem.
Here is my code:
const functions = require("firebase-functions");
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
const sgMail = require('#sendgrid/mail');
const API_KEY = functions.config().sendgrid.key;
const TEMPLATE_ID = functions.config().sendgrid.template;
sgMail.setApiKey(API_KEY);
exports.sendEmailVerifications = functions.https.onCall((email,context) => {
admin.auth().generateEmailVerificationLink(context.auth.token.email).then((link) => {
const msg = {
to: context.auth.token.email,
from: 'example#example.com',
template: TEMPLATE_ID,
dynamic_template_data: {
emailLink: link
}
};
sgMail.send(msg);
return {"success": true};
}).catch((error) => {
});
});
I'm trying to get an emphemoral key from stripe using firebase functions. Here is the error I see in my firebase logs:
getStripeEphemeralKeysUnhandled error TypeError: Cannot read property 'create' of undefined at exports.getStripeEphemeralKeys.functions.https.onCall (/workspace/index.js:40:42) at func (/workspace/node_modules/firebase-functions/lib/providers/https.js:273:32) at process._tickCallback (internal/process/next_tick.js:68:7)
Here is the error that shows in the xcode console:
Error creating ephenmeral key: Error Domain=com.firebase.functions Code=13 "INTERNAL" UserInfo={NSLocalizedDescription=INTERNAL} INTERNAL
firebase function written in Javascript:
const functions = require('firebase-functions');
const stripe_key = "sk_test_LT2Wc4v9kUD6XxG8Nq2LNh4P00thTqtiSa"
const admin = require('firebase-admin');
var stripe = require('stripe')(stripe_key);
admin.initializeApp(functions.config().firebase);
exports.createStripeCustomer = functions.https.onCall(async (data, context) => {
const full_name = data.full_name;
const email = data.email;
const customer = await stripe.customers.create({
email: email,
name: full_name,
description: full_name
});
console.log('new customer created: ', customer.id)
return {
customer_id: customer.id
}
});
exports.getStripeEphemeralKeys = functions.https.onCall(async (data, context) => {
const api_version = data.api_version;
const customer_id = data.customer_id;
const key = await stripe.ephemeralKeys.create (
{customer: customer_id},
{apiVersion: api_version}
);
return key;
});
iOS call using swift
func createCustomerKey(withAPIVersion apiVersion: String, completion: #escaping STPJSONResponseCompletionBlock) {
let stripe_customer_id = MyDefaults.getDefaultsForCustID()
functions.httpsCallable("getStripeEphemeralKeys").call(["api_version" : apiVersion, "customer_id" : stripe_customer_id]) { (response, error) in
if let error = error {
completion(nil, error)
}
if let response = (response?.data as? [String: Any]) {
completion(response, nil)
}
}
}
I'm not versed enough in Javascript to know what the error means except there seems to be a problem with the word create. Any thoughts are much appreciated!
OK Thanks #floatingLomas #Rafael Lemos. You guys were on the right track. It was the stripe version. I was having some pod errors that I was pushing to fix later so cleaned up and updated cocoa pods ruby and npm... now when I firebase deploy - I finally got the right version of stripe up to firebase...
I"M GOOD NOW -- THANKS!!!
I was wondering if anyone could tell me what I am doing wrong. I am trying to write a firebase function to send a notification. That part works, but I am trying to get the value of a particular child. Yet I keep getting the following error message: "TypeError: Cannot read property 'child' of undefined"
This is my server-side code:
'use strict'
const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
exports.sendNotification = functions.database.ref('/notifications/{receiver_user_id}/{notification_key}').onWrite((data, context)=>{
const receiver_user_id = context.params.receiver_user_id;
const notification_key = context.params.notification_key;
console.log('We have a notification to send to : ', receiver_user_id);
// Grab the current value of what was written to the Realtime Database.
const original = data.after.val();
console.log('Uppercasing', context.params.notification_key, original);
const sender_fullname = snapshot.child('notifying_user_fullname').val();
console.log('fullname value: ', sender_fullname);
if(!data.after.val()){
console.log('A notification has been deleted: ', notification_key);
return null;
}
const DeviceToken = admin.database().ref(`/tokens/${receiver_user_id}/device_token`).once('value');
return DeviceToken.then(result=>{
const token_id = result.val();
const payload = {
notification: {
title: sender_fullname,
body: "You have a new message!",
icon: "default"
}
};
return admin.messaging().sendToDevice(token_id, payload).then(response=>{
console.log('Message has been sent');
});
});
});
The snapshot prints out just fine. And when I remove the snapshot and sender_fullname constants the notification is delivered just fine. But, like I said, I keep getting a TypeError message when the code is executed this way. Does anyone know how to get the value of a child at a certain location in realtime database. If it helps, this is what the data snapshot looks like:
If anyone can help that would be great. Thank you in advance
You have a variable snapshot that was never defined, at least not that you're showing here. Here's where you're using it:
const sender_fullname = snapshot.child('notifying_user_fullname').val();
Trying to call method on something that's not defined would give you that error message.
I'm in the process of setting a graphql endpoint with servlerless/ lambda and am receiving an error when trying to connect to the graphql playground that comes with graphql-yoga. When I go to my route that has the playground (/playground) it launches the playground interface however it just says:
Server cannot be reached
In the top right of the playground. It's worth noting i'm using the makeRemoteExecutableSchema utility to proxy to another graphql endpoint (which is my CMS called Prismic). I don't believe this is the issue as I have successfully connected to it with the playground when testing on a normal express server.
Here is the code in my handler.js
'use strict';
const { makeRemoteExecutableSchema } = require('graphql-tools');
const { PrismicLink } = require("apollo-link-prismic");
const { introspectSchema } = require('graphql-tools');
const { ACCESS_TOKEN, CMS_URL } = process.env;
const { GraphQLServerLambda } = require('graphql-yoga')
const lambda = async () => {
const link = PrismicLink({
uri: CMS_URL,
accessToken: ACCESS_TOKEN
});
const schema = await introspectSchema(link);
const executableSchema = makeRemoteExecutableSchema({
schema,
link,
});
return new GraphQLServerLambda({
schema: executableSchema,
context: req => ({ ...req })
});
}
exports.playground = async (event, context, callback) => {
context.callbackWaitsForEmptyEventLoop = false;
const graphQl = await lambda();
return graphQl.playgroundHandler(event, context, callback);
};
I have followed this guide for getting it running up till here and am fairly sure i've followed similar steps for what applies to what i'm trying to do but can't seem to figure out where i've gone wrong.
Thanks,
Could you take a look at what version of the graphql-yoga package you are using?
I had a similar problem using the Apollo server in combination with Kentico Cloud Headless CMS and I found this issue:
https://github.com/prisma/graphql-yoga/issues/267
Now im working for my final project. I try to send notification using firebase cloud function when its trigger the onUpdate but i got an error. I have follow tutorial on youtube and website but i dont get it. By the way, im new to firebase. below Here is my index.js code :-
const functions = require('firebase-functions');
//Firebase function and handling notification logic
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
exports.pushNotification = functions.database.ref('/Sensor').onWrite(( change,context) => {
const sensor = change.after.val();
const payload = {
notification: {
Title: "Alert",
Body: "Open pipe detect !",
icon: "default"
}
};
return admin.messaging().sendToDevice(sensor.token, payload)
.then((response)=> {
return console.log("Successfully sent message:", response);
});
});
the project structure is like this:
**water-system**
+--Sensor
+---Pipe
+---pipeName
+---solenoid
+---status // trigger on this update
+---User
+---Id1
+---email
+---name
+---token // token store by this user
+---Id2
+---Id3
+---token // also store token
So when the child node of Sensor have been update it will send notification to User who have store the token(user id1 and id3). Glad if anyone could help me to solve this problem
Try storing the tokens in this format:
"tokens" : {
"cXyVF6oUGuo:APA91bHTSUPy31JjMVTYK" : true,
"deL50wnXUZ0:APA91bGAF-kWMNxyP6LGH" : true,
"dknxCjdSQ1M:APA91bGFkKeQxB8KPHz4o" : true,
"eZunoQspodk:APA91bGzG4J302zS7sfUW" : true
}
Whenever you want to write a new token just do a set:
firebase.app().database().ref(`/user/${uid}/tokens/${token}`).set(true);
And to create an array for sendToDevice:
const tokensList = Object.keys(tokens.val());
return admin.messaging().sendToDevice(tokensList, payload);