Question

获取错误：

onSnapshot中未捕获的错误：FirebaseError：权限丢失或不足。

这是被调用的函数：

let unsubscribeUserThings
export function getUserThings(user, state) {
    unsubscribeUserThings = firebaseDB.collection("things").where("user", "==", user)
        .onSnapshot(function(querySnapshot) {
            var things = {}
            querySnapshot.forEach(function(doc) {
                things[doc.id] = doc.data()
            })

            state.setState({
                things: things
            })
        })

}
export function stopListeningToUserThings() {
    // Stop listening to changes
    unsubscribeUserThings()
}

Firebase安全规则为：

service cloud.firestore {
  match /databases/{database}/documents {

    // FUNCTIONS

      // True if the signed in user is the thing's user
      function isThingUser() {
        return request.auth != null && request.auth.uid != null && resource.data.user == request.auth.uid
      }

      // True if the signed in user is the thing's owner
      function isThingOwner() {
        return request.auth != null && request.auth.uid != null && resource.data.owner == request.auth.uid
      }

    // RULES

      // Things
      match /things/{thingID} {
        allow create: if true
        allow read, update: if isThingUser() || isThingOwner()
      }
  }
}

奇怪的是，它仍然可以正确显示所有内容，只是引发了此错误。为什么会这样呢？我会忽略吗？

Answer 1

使用Firebase规则，一切都很好，而且很好–最终，它被另一个onSnapshot调用拉动，以监听“事物”文档的子集合，即子集合“部件”。添加了一个嵌套的match语句，以授予其读取/ things / {thingID} / parts / {partID}的权限，并且一切现在都在工作！

service cloud.firestore {
  match /databases/{database}/documents {

    // FUNCTIONS

      // True if the signed in user is the thing's user
      function isThingUser() {
        return request.auth != null && request.auth.uid != null && resource.data.user == request.auth.uid
      }

      // True if the signed in user is the thing's owner
      function isThingOwner() {
        return request.auth != null && request.auth.uid != null && resource.data.owner == request.auth.uid
      }

  // RULES

    // Things
    match /things/{thingID} {
      allow create: if true
      allow read, update: if isThingUser() || isThingOwner()

      match /parts/{partID} {
        allow read, write: if true
      }
    }
  }
}

Firebase安全规则为Firestore .where（）快照引发错误

1 个答案: