Firestore触发的云函数params的类型

Question

因此，以下是Firestore云函数的可用触发器：

https://firebase.google.com/docs/firestore/extend-with-functions

onCreate

functions.firestore
.document('my-collection/{doc-id}')
.onCreate((snap, context) => { /* ... */ });

on删除

functions.firestore
.document('my-collection/{doc-id}')
.onDelete((snap, context) => { /* ... */ });

onUpdate

functions.firestore
.document('my-collection/{doc-id}')
.onUpdate((change, context) => { /* ... */ });

onWrite

functions.firestore
.document('my-collection/{doc-id}')
.onWrite((change, context) => { /* ... */ });

我正在将我的项目转换为Typescript。参数change、context和snap应该使用什么类型？

Answer 1

以下是类型：

onCreate：

snapshot: FirebaseFirestore.QueryDocumentSnapshot
context: functions.EventContext

on删除：

snapshot: FirebaseFirestore.QueryDocumentSnapshot
context: functions.EventContext

onUpdate:

change: functions.Change<FirebaseFirestore.QueryDocumentSnapshot>
context: functions.EventContext

onWrite:

change: functions.Change<FirebaseFirestore.DocumentSnapshot>
context: functions.EventContext

---

此处和文档中的更多详细信息。

---

如果你使用Typescript，你会导入/使用如下：

import * as functions from 'firebase-functions'
import * as admin from 'firebase-admin'
...
export const fnSomeCollectionTriggerOnUpdate = 
functions.firestore.document('somecollection/{docId}')
.onUpdate(async (change: functions.Change<admin.firestore.QueryDocumentSnapshot>,
context: functions.EventContext) => {
...
}