node.js - Firestore 触发的云功能参数的类型？

Question

以下是 Firestore 云功能的可用触发器:

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

onCreate

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

onDelete

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。我应该为参数 change context 和 snap 使用什么类型？

Answer 1

以下是类型:

onCreate:

snapshot: FirebaseFirestore.QueryDocumentSnapshot
context: functions.EventContext

onDelete:

snapshot: FirebaseFirestore.QueryDocumentSnapshot
context: functions.EventContext

onUpdate:

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

onWrite:

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

---

更多详情 here和 here在文档中。

---

如果你使用 Typescript，你会像这样导入/使用:

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) => {
...
}