Redux Saga - yield 调用不返回数据

Question

嗨，我是 Redux 的新手，我目前正在研究一项功能，我尝试转到其他帖子，但对我没有太大帮助。

问题

我成功地调用了我的 API 但是，我发现由于某种原因它没有返回任何数据。当我在控制台上看到 XHR 选项卡时，我看到一个 HTTP 200 并且有一个负载，但我没有看到任何错误，这让我不确定为什么我没有看到任何返回的数据。我看到我的 saga 文件正在调用我的操作 CREATE_MATRIX_REQUEST，然后它立即调用 CREATE_MATRIX_SUCCESS。我真的不知道为什么会这样，任何帮助将不胜感激

actions.js

import {
  CREATE_MATRIX_REQUEST,
  CREATE_MATRIX_SUCCESS,
  CREATE_MATRIX_ERROR
} from './constants';



/**
 * Tells the app we want to create a matrix request
 */
export function createMatrixRequest(data) {
  return { type: CREATE_MATRIX_REQUEST, data};
}

/**
 * Tells the app the matrix request was succesfully made
 */
export function createMatrixSuccess(data) {
  return { type: CREATE_MATRIX_SUCCESS, data };
}

/**
 * Tells the app the matrix request failed
 */
export function createMatrixError(error) {
  return { type: CREATE_MATRIX_ERROR , error };
}

reducer.js

/*
 * The reducer takes care of state changes in our app through actions
 */
import { fromJS } from 'immutable';
import {
    CREATE_MATRIX_REQUEST,
    CREATE_MATRIX_SUCCESS,
    CREATE_MATRIX_ERROR
} from './constants';

// The initial application state
 const initialState = fromJS({
   success: false,
   error:''
 });

// Takes care of changing the application state
function createMatrixReducer(state = initialState, action) {
  switch (action.type) {
    case CREATE_MATRIX_REQUEST:
     return state;
    case CREATE_MATRIX_SUCCESS:
    console.log(action, 'This is a paylaod')
     return state.set('success', true);
    case CREATE_MATRIX_ERROR:
      return state.set('error', action.payload);
    default:
      return state;
  }
}


export default createMatrixReducer;

sagas.js

import { call, put } from 'redux-saga/effects';
import { takeEvery } from 'redux-saga/effects'
import { createMatrix } from './utils';
import { browserHistory } from 'react-router';

import { CREATE_MATRIX_REQUEST, CREATE_MATRIX_SUCCESS, CREATE_MATRIX_ERROR } from './constants';

export function* createMatrixSaga(action) {
   try {
      //Calls the API and sends payload
      const data = yield call(createMatrix, action.data);
      // We send an action that tells Redux we're sending a payload
      yield put({type: CREATE_MATRIX_SUCCESS, success: data});
      //Forward to /reports once actions is sent
      yield call(forwardTo, '/reports');

   } catch(error) {
     // We send an action that tells Redux we're sending an error
     yield put({type: CREATE_MATRIX_ERROR, error: error });
   }
}


function* watchFetchData() {
  // We send an action that tells Redux we're sending a request
    yield takeEvery(CREATE_MATRIX_REQUEST, createMatrixSaga);
}


export default [
  watchFetchData,
];

// Little helper function to abstract going to different pages
export function* forwardTo(location) {
  yield call(browserHistory.push, location);
}

utils.js

import axios from 'axios';
import cookie from 'react-cookie';


export function createMatrix({domain, kw}) {

  var token = cookie.load('token');
  var url = '';
  var keywords = kw;
  var encoded = encodeURI(keywords);
  var data = {
     key: token,
     keywords: encoded,
     analysisname: domain,
     country:1,
     location:null,
     trafficstats:false,
     use_majestic_api:false
  }
  axios.post(url, data).then((response) => {
      return response
  })
  .catch((error) => {
    throw error
  });
}


export default createMatrix;

Answer 1

如果有有效负载，我认为问题出在 axios post 结果上，例如：

import axios from 'axios';
import cookie from 'react-cookie';


export function createMatrix({domain, kw}) {

  var token = cookie.load('token');
  var url = '';
  var keywords = kw;
  var encoded = encodeURI(keywords);
  var data = {
     key: token,
     keywords: encoded,
     analysisname: domain,
     country:1,
     location:null,
     trafficstats:false,
     use_majestic_api:false
  }
  return axios.post(url, data).then((response) => {
      return response.data
  })
  .catch((error) => {
    throw error
  });
}


export default createMatrix;

Redux Saga - yield 调用不返回数据

Redux Saga - yield call not returning data

redux

redux-saga

react-redux