我正在尝试部署firebase函数,但我收到了错误
src / index.ts(132,31):错误TS2339:“更改”类型中不存在属性“数据”。 src / index.ts(136,65):错误TS2339: '变更'类型中不存在属性'params'。 src / index.ts(142,18):错误TS2339:属性'数据'不存在 输入'更改'。
我的代码
module.exports.onUserStatusChanged = functions.database
.ref('/users/{uid}').onUpdate((event) => {
// Get the data written to Realtime Database
const eventStatus = event.data.val();
// Then use other event data to create a reference to the
// corresponding Firestore document.
const userStatusFirestoreRef = firestore.doc(`users/${event.params.uid}`);
// It is likely that the Realtime Database change that triggered
// this event has already been overwritten by a fast change in
// online / offline status, so we'll re-read the current data
// and compare the timestamps.
return event.data.ref.once("value").then((statusSnapshot) => {
return statusSnapshot.val();
}).then((status) => {
console.log(status, eventStatus);
// If the current timestamp for this data is newer than
// the data that triggered this event, we exit this function.
if (status.last_changed > eventStatus.last_changed) return;
// Otherwise, we convert the last_changed field to a Date
eventStatus.last_changed = new Date(eventStatus.last_changed);
// ... and write it to Firestore.
//return userStatusFirestoreRef.set(eventStatus);
return userStatusFirestoreRef.update(eventStatus);
});
});
显示红色未显示
event.data.val()
event.params.uid
答案 0 :(得分:7)
改变这个:
module.exports.onUserStatusChanged = functions.database
.ref('/users/{uid}').onUpdate((event) => {
// Get the data written to Realtime Database
const eventStatus = event.data.val();
进入这个:
module.exports.onUserStatusChanged = functions.database
.ref('/users/{uid}').onUpdate((change,context) => {
// Get the data written to Realtime Database
const eventStatus = change.after.val();
同样改变这个:
event.params.uid
进入这个:
context.params.uid
更多信息:
https://firebase.google.com/docs/functions/beta-v1-diff
云功能已更新并在触发onWrite
后检索数据,您需要使用前后有两个属性的change
,在这种情况下使用change.after.val()