Эта ошибка отображается при развертывании облачных функций и использовании async / await в моем коде.в чем здесь проблема?
// Import the Firebase SDK for Google Cloud Functions.
const functions = require('firebase-functions');
// Import and initialize the Firebase Admin SDK.
const admin = require('firebase-admin');
// admin.initializeApp();
admin.initializeApp(functions.config().firebase);
exports.addWelcomeMessages = functions.auth.user().onCreate(async(user)=> {
console.log('A new user signed in for the first time.'+user.displayName);
const fullName = user.displayName || 'Anonymous';
// Saves the new welcome message into the database
// which then displays it in the FriendlyChat clients.
return admin.database().ref('messages').push({
name: 'Firebase Bot',
profilePicUrl: '/images/firebase-logo.png', // Firebase logo
text: `${fullName} signed in for the first time! Welcome!`,
});
// console.log('Welcome message written to database.');
});
exports.sendNotifications = functions.database.ref('/messages/{messageId}').onCreate(async(snapshot) => {
// Notification details.
const text = snapshot.val().text;
const payload = {
notification: {
title: `${snapshot.val().name} posted ${text ? 'a message' : 'an image'}`,
body: text ? (text.length <= 100 ? text : text.substring(0, 97) + '...') : '',
icon: snapshot.val().photoUrl || '/images/profile_placeholder.png',
click_action: `https://${process.env.GCLOUD_PROJECT}.firebaseapp.com`,
}
};
// // Get the list of device tokens.
const allTokens = await admin.database().ref('fcmTokens').once('value');
if (allTokens.exists()) {
// Listing all device tokens to send a notification to.
const tokens = Object.keys(allTokens.val());
// Send notifications to all tokens.
const response = await admin.messaging().sendToDevice(tokens, payload);
await cleanupTokens(response, tokens);
console.log('Notifications have been sent and tokens cleaned up.');
}
});
// Cleans up the tokens that are no longer valid.
function cleanupTokens(response, tokens) {
// For each notification we check if there was an error.
const tokensToRemove = {};
response.results.forEach((result, index) => {
const error = result.error;
if (error) {
console.error('Failure sending notification to', tokens[index], error);
// Cleanup the tokens who are not registered anymore.
if (error.code === 'messaging/invalid-registration-token' ||
error.code === 'messaging/registration-token-not-registered') {
tokensToRemove[`/fcmTokens/${tokens[index]}`] = null;
}
}
});
return admin.database().ref().update(tokensToRemove);
}