依賴安裝 redux redux-saga wepy-redux

store/index.js

        import { createStore, applyMiddleware } from 'redux'

import createSagaMiddleware from 'redux-saga/dist/redux-saga'

import rootReducer from './reducers'

import rootSaga from './saga'

const sagaMiddleware = createSagaMiddleware()

const initState = {

  global: {

    list: [],

    loading: true,

  },

}

const store = createStore(rootReducer, initState, applyMiddleware(sagaMiddleware))

sagaMiddleware.run(rootSaga)

export default store

store/saga.js

        import { effects } from 'redux-saga/dist/redux-saga'
        import { getData } from './api'
        const { call, put, takeLatest } = effects

function* fetchData({ payload }) {

  yield put({

    type: 'TOGGLELOADING',

    payload: true,

  })

  try {

    const data = yield call(getData, {})

    yield put({

      type: 'SETDATA',

      payload: data,

    })

    yield put({

      type: 'TOGGLELOADING',

      payload: false,

    })

  } catch (e) {

    console.log(e)

  }

}

export default function* rootSaga() {

  yield takeLatest('GETDATA', fetchData)

}

store/reducer/index.js

    import { combineReducers } from 'redux'


function global(state = {}, action) {
  switch (action.type) {
    case 'SETDATA':
      return { ...state, list: action.payload }
    case 'TOGGLELOADING':
      return { ...state, loading: action.payload }
    default:
      return state
  }
}


const rootReducer = combineReducers({
  global
})

export default rootReducer

頁面呼叫action： store.dispath({})