Question

我正在使用react native app从firebase数据库中获取数据。我们的想法是，一旦从FirebaseDB收到数据，就会发出一个操作来初始化def function_y(): import main dostuff... main.object.bye() #object from Main.py dostuff... main.function_x() #function from Main.py。问题是收到数据时不会触发调度。我错过了什么？

我正在使用redux-thunk中间件。

// database.js

store.appState

// actions.js

import * as firebase from 'firebase'

const config = {
  apiKey: "...",
  authDomain: "...",
  databaseURL: "...",
  projectId: "...",
  storageBucket: "...",
  messagingSenderId: "..."
}

const Database = firebase
  .initializeApp(config)
  .database()
  .ref()

export default Database

// container.js

import database from 'database'

const setInitDataFromFirebase = data => {
  return ({
    type: SET_DATA_INIT,
    payload: {
      data
    }
  })
}

export const loadAction = () => {
  return dispatch => {
    Database.once('value', snapshot=>{
      console.log(snapshot.val()) // i get the log with correct data
      dispatch(setInitDataFromFirebase(snapshot.val())) // this is not dispatched
    })
  }
}

Answer 1

我弄明白了。事实证明，当我导入redux-thunk时，我做了一个非常基本的拼写错误。我应该做的

import ReduxThunk from 'redux-thunk'
const store = createStore(
  RootReducer,
  applyMiddleware(ReduxThunk, logger)
)

我错误地做了什么

import thunk from 'redux-thunk'
const store = createStore(
  RootReducer,
  applyMiddleware(thunk, logger)
)

收到firebase数据库数据后无法分派redux操作

1 个答案: