调用firestore collection()在博览会上不起作用 [英] Call to firestore collection() not working on expo

问题描述

使用:用EXPO响应Native

Using: React Native with expo

react-redux:5.0.6

react-redux: 5.0.6

redux:3.7.2

redux: 3.7.2

firebase:4.9.0

firebase: 4.9.0

(请参阅以下修复程序:降级为Firebase 4.6.2)

(See fix below: Downgraded to firebase 4.6.2)

更新:由于怀疑redux在firebase上不能很好地工作，因此这是一个更长的问题.但这似乎并非如此.只保留相关部分

UPDATE: This was a longer question based on the suspicion that redux wasn't working nicely with firebase. But that doesn't seem to be the case. Only keeping the relevant parts

这是与Redux挂钩的动作创建者.在此处使用 firebase.auth().signInWithEmailAndPassword()时，一切正常.

This is an action creator hooked up with redux. When using firebase.auth().signInWithEmailAndPassword() here, everything works fine.

action.js

import firebase from 'firebase'
import 'firebase/firestore'

export const dataFetch = () => {
    return (dispatch) => {
        firebase.auth().signInWithEmailAndPassword('[e-mail]', 'passw')      
        .then(
            (result => dispatch({ type: 'DATA_FETCH_SUCCESS', payload: result })),
            (() => alert("got here"))
        )
        .catch((err) => alert(err))
    }
};

但是当使用 firebase.firestore().collection(...).get()时，执行不会进入 then()部分中-可以里面没有东西.

But when using firebase.firestore().collection(...).get(), execution doesn't go inside the then() part - can't log anything inside it.

import firebase from 'firebase'
import 'firebase/firestore'

export const dataFetch = () => {
    return (dispatch) => {
        firebase.firestore().collection('MyCollection').get()
        .then(
            (result => dispatch({ type: 'DATA_FETCH_SUCCESS', payload: result })),
            (() => alert("got here"))
        )
        .catch((err) => alert(err))
    }
};

可能是什么问题?是否有通过收集路径的特定方法?Firebase配置不正确吗?我仔细检查了所有看起来正确的内容.我正在使用Web应用程序的配置.有专门针对Firestore的东西可能会丢失吗?

What could be the issue? Is there a specific way to pass the collection path? Could the firebase config be incorrect? I double-checked everything at it looks right. I'm using the config for a web app. Is there something specific to firestore that could be missing?

我的firebase配置中有以下键:

I have the following keys in my firebase config:

apiKey: '',           // Auth / General use
authDomain: '',       // Auth with popup/redirect
databaseURL: '',      // Realtime Database
storageBucket: '',    // Storage
messagingSenderId: '',// Cloud Messaging
projectId: '',        // Firestore

推荐答案

好吧，所以经过大量搜索后发现，这是与Firestore无法与EXPO配合使用的问题！(问题标题的更新反映了这一点.)

Ok, so searched around a lot and found that it is a problem related to firestore not working with expo! (Updated title of the question to reflect this).

对此没有稳定的解决方法，但是其他人已经遇到了此问题，并且这里有一种解决方法，请检查Igor的回答:在响应本机应用程序中(通过Expo)使用Firestore权限-request.auth始终为空

There is no stable fix for this but others have faced this issue and there is a workaround here, check answer by Igor: In react native app (through Expo) using firestore permissions - request.auth is always null

问题在React Native中，并在这里进行了讨论: https://github.com/firebase/firebase-js-sdk/issues/283#issuecomment-345815579

The issue is in React Native and has been discussed here: https://github.com/firebase/firebase-js-sdk/issues/283#issuecomment-345815579

希望它将很快成为正式版本.

Hopefully it will make it to the official builds soon.

仅供参考，我降级为Firebase 4.6.2，并替换了上面链接中提到的index.js文件，现在一切正常.

FYI, I downgraded to firebase 4.6.2 and replaced the index.js file mentioned in the link above and things work perfectly now.

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