React-Native 中的 FireStore

Question

Hi I have been trying to access Firestore from React-native App

My Tried Code

import firebase from '@react-native-firebase/app'
import firestore from '@react-native-firebase/firestore';
import * as Actions from '../../../StateManager/Actions/ActionTypes'

export function getVersion() {
    return async (dispatch) => {
        /// Method 1
        firestore().collection('Versions').get().then(querySnapshot => {
            console.log('Snapshot: ' + querySnapshot)
            return null
          });

          /// Method 2
          firestore().collection('Versions').get()
          .then(querySnapshot => {
              console.log(querySnapshot);
          console.log(querySnapshot._docs);
      })
    }
}

I none worked

Configurations Done

1. Setting Up Both Android and iOS App in Firebase Console with Same BundleID(iOS) and Same Package(Android)
2. Added Google-service.plist in iOS
3. Added Google-Service.json in Android Module as per Documentation
4. Installed npm install --save @react-native-firebase/app
5. Installed npm install —save @react-native-firebase/firestore in React App
6. Ran cd iOS/ && pod install it installed all the dependency related to Firebase and Firestore in iOS App
7. Added [FirebaseApp configure]; in iOS App AppDelegate.h
8. Added All Dependencies manually in Android App
9. Build succeed in both Android And iOS

Debugging Console Info: On Calling My getVersion() below got in debugging mode

I have gone through many Question on Stack couldn't get any positive output

Included Libraries:

React-Navigation, Redux, redux-thunk, Firebase, Firestore

My Store and redux are properly configured and Screen.js (my Root screen where I call this is properly connected to Redux and store)

Below way I am calling it

componentDidMount() {
        this.props.getVersion()
        if (Platform.OS === 'android') {
            BackHandler.addEventListener('hardwareBackPress', this.handleBackPress)   
        }
    }

FireStore Structure:

FireStore Rules:

Answer 1

Here I am updating answer based on my R&D

I am able to get version and status from Firestore Collection

Updating below may help others who struggles for syntax

export function getVersion(versionID) {
    return async (dispatch) => {
        try {
            /// For Real Time
            firestore().collection('Versions').onSnapshot(querySnapshot => {
                querySnapshot.forEach(doc => {
                    if (doc.exists) {
                        const { version, status } = doc.data()
                    }
                });
            });

            /// For One Time
            firestore().collection('Versions').get().then(querySnapshot => {
                querySnapshot.forEach(doc => {
                    if (doc.exists) {
                        const { version, status } = doc.data()
                    }
                });
            });
        } catch (error) {
            console.log("*** Firebase - error setting document", { error });
        }
    }
}