Firebase 云功能总是超时 [英] Firebase cloud function always timeout

问题描述

我正在探索 firebase 云功能，并尝试使用 http 请求发送通知.

I'm exploring the firebase cloud functions and I'm trying to send a notifications with an http request.

问题是即使我设法发送通知，请求总是超时.

The problem is that even if I manage to send the notification, the request always goes timeout.

这是我的脚本

const functions = require('firebase-functions');
const admin = require('firebase-admin');

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

exports.friendRequestNotification = functions.https.onRequest((req, res) => {

    const senderId = req.query.senderId;
    const recipientId = req.query.recipientId;
    const getRecipientPromise = admin.database().ref(`/players/${recipientId}`).once('value');
    const getSenderPromise = admin.database().ref(`/players/${senderId}`).once('value');

    return Promise.all([getRecipientPromise, getSenderPromise]).then(results => {

        const recipient = results[0];
        const sender = results[1];

        const recipientToken = recipient.child("notificationsInfo/fcmToken").val();
        const notificationAuthorization = recipient.child("notificationsInfo/wantsToReceiveNotifications").val();
        const recipientBadge = recipient.child("notificationsInfo/badgeNumber").val();
        const senderUsername = sender.child("username").val();

        const payload = {
            notification: {
              title: `FriendRequest`,
              body: `You have a new friend request from ${senderUsername}!`,
              badge: (recipientBadge+1).toString()
            }
        };

        if (notificationAuthorization) {

            return admin.messaging().sendToDevice(recipientToken, payload).then(response => {

            });

        }

        return admin.database().ref(`/players/${recipientId}/notificationsInfo/badgeNumber`).setValue(recipientBadge+1);

    });

});

另外，badgeNumber 好像一直没更新，是不是跟超时问题有关?

Plus It seems that the badgeNumber in never updated, is that related to the timeout issue?

推荐答案

HTTP 触发的 Cloud Functions 就像 Express 应用程序一样工作——您需要使用一个响应对象 (res)请求完成后发送一些东西.在这种情况下，您似乎可以执行以下操作:

HTTP-triggered Cloud Functions work just like Express apps -- you have a response object (res) that you need to use to send something when the request is done. In this case, it looks like you could do something like:

return Promise.all([
  /* ... */
]).then(() => {
  res.status(200).send('ok');
}).catch(err => {
  console.log(err.stack);
  res.status(500).send('error');
});

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