在云函数中未定义Firestore快照属性

Question

我正在编写一个小函数，用于在使用多个通配符创建文档的基础上发送电子邮件。

奇怪的是，snapshopt.data((对象在日志中打印属性时拥有所有属性。然而，当我试图访问此对象的属性时，它是未定义的(例如，无法读取未定义的属性"电子邮件"(

为了示例起见，我将使用console.log(它已经过测试(。

import * as functions from 'firebase-functions';
import * as admin from 'firebase-admin';
admin.initializeApp();
type FullEvent = {
email: string;
date: string;
localSlotFrom: string;
localSlotFull: string;
localDate: string;
login: string;
slotFrom: string;
slotFull: string;
ownerEmail: string;
ownerName: string;
name: string;
}
exports.createEmailTask = functions.firestore.document('/{rootCollection}/eventTypes/{eventTypeColId}/{eventTypeDocId}/fullEvents/{eventDocumentId}')
.onCreate((snap, context) => {
const fullEvent = snap.data() as FullEvent;
// const { email } = snap.data() as FullEvent; // -> email is undefined as well this way
console.log(fullEvent); // will have in logs the full object with defined properties (e.g. { name: "My event name", email: "[e-mail]" }
console.log('full event email ' + fullEvent.email); // Cannot read property 'email' of undefined 
return;

以下的全部功能

import * as functions from 'firebase-functions';
import * as admin from 'firebase-admin';
admin.initializeApp();
type FullEvent = {
email: string;
date: string;
localSlotFrom: string;
localSlotFull: string;
localDate: string;
login: string;
slotFrom: string;
slotFull: string;
ownerEmail: string;
ownerName: string;
name: string;
}
exports.createEmailTask = functions.firestore.document('/{rootCollection}/eventTypes/{eventTypeColId}/{eventTypeDocId}/fullEvents/{eventDocumentId}')
.onCreate((snap, context) => {
const { email, ownerEmail, name, ownerName, slotFull, localSlotFull, date, localDate } = snap.data() as FullEvent;
console.log('ownerEmail ' + ownerEmail);
const dateFormatted = new Date(date).toLocaleDateString('en-US', { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' });
const localDateFormatted = new Date(localDate).toLocaleDateString('en-US', { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' });
const p1 = admin.firestore().collection('mail').add({
to: ownerEmail,
message: {
subject: `A new event has been scheduled with ${name}`,
html: `A new event has been scheduled with ${name} on ${dateFormatted} between ${slotFull}`
}
});
const p2 = admin.firestore().collection('mail').add({
to: email,
message: {
subject: `Event scheduled with ${ownerName} confirmed!`,
html: `The event with ${ownerName} has been confirmed and scheduled for the ${localDateFormatted} between ${localSlotFull}`
}
});
return Promise.all([p1, p2]);
});

供参考：

防火基地功能3.11.0firebase管理员9.3.0

我一直在尝试不同的打印数据的方法。我的假设是，这与承诺有关。

我是不是错过了什么？

更新：

日志：

createEmailTask
{"fullEvent":{"ownerEmail":"[e-mail]","date":"2020-11-03","localSlotFrom":"10:00","login":"johndoe","slotFrom":"16:00","slotFull":"16:00 - 17:00","name":"John Doe","localDate":"2020-11-03","localSlotFull":"10:00 - 11:00","email":"[e-mail]","ownerName":"Kurniawan"}} 
createEmailTask
full event email undefined

Answer 1

我们可以从提供的日志中看到：

createEmailTask
{"fullEvent":{"ownerEmail":"[e-mail]","date":"2020-11-03","localSlotFrom":"10:00","login":"johndoe","slotFrom":"16:00","slotFull":"16:00 - 17:00","name":"John Doe","localDate":"2020-11-03","localSlotFull":"10:00 - 11:00","email":"[e-mail]","ownerName":"Kurniawan"}}

看起来您有一个嵌套的fullEvent对象，它包含了所有其余的数据。因此，要访问您的数据，您只需要：

console.log('full event email ' + fullEvent.fullEvent.email);

根据您提供的代码。