Question

我正在尝试在Cloud Firestore中设置一个功能，该功能将在将新文档添加到特定集合时触发。我希望使用TypeScript做到这一点，因为在编写异步代码时，我被告知它更易于使用。以下JavaScript代码会按预期运行，并在我在指定位置添加新文档时触发：

//This JavaScript code works
import * as functions from 'firebase-functions';

exports.waitReportCreatedJS = functions.firestore
    .document('merchant_locations/{merchantId}/wait_period/{waitId}')
    .onCreate((snapshot, context) => {
        console.log('WaitReportCreated has been triggered');
        const merchantId = context.params.merchantId
        const waitId = context.params.waitId
        console.log(`New wait recorded: ${waitId} at ${merchantId}`);
        return snapshot.ref.update({ waitId: waitId })        

      });

但是，当我尝试使用TypeScript执行相同操作时，它无法触发-添加文档时什么也没发生：

//But this TypeScript code doesn't seem to even trigger
import * as functions from 'firebase-functions';

export const waitReportCreatedTS = functions.database
.ref('merchant_locations/{merchantId}/wait_period/{waitId}')
.onCreate((snapshot, context) => {
    console.log('WaitReportCreated has been triggered');
    const merchantId = context.params.merchantId
    const waitId = context.params.waitId
    console.log(`New wait recorded: ${waitId} at ${merchantId}`);
    return snapshot.ref.update({ waitId: waitId })
})

我对Firestore功能非常陌生，完全不知道我做错了什么。谢谢您能给我的帮助。

Answer 1

在您的JavaScript示例中，您使用了Firestore数据库functions.firestore .document。但是，您的TypeScript示例使用的是实时数据库functions.database.ref。

import * as functions from 'firebase-functions';

export const waitReportCreatedTS = functions.firestore
    .document('merchant_locations/{merchantId}/wait_period/{waitId}')
    .onCreate((snapshot, context) => {
    console.log('WaitReportCreated has been triggered');
    const merchantId = context.params.merchantId
    const waitId = context.params.waitId
    console.log(`New wait recorded: ${waitId} at ${merchantId}`);
    return snapshot.ref.update({ waitId: waitId })

无法获得onCreate函数以在Cloud Firestore上使用TypeScript触发

1 个答案: