redux saga

sagas.js 中的代码

// redux-saga
import { call, put,takeEvery } from 'redux-saga/effects'

const Api ={
    login(){}
}

// generator 生成器函数 
function* login(){
    try {
        const result = yield call(Api.login);
        yield put({type: 'login', result})        
    } catch(err) {
        yield put({type: 'login_failure', message: err.message)
    }
}

function* mySaga(){
    yield takeEvery('login_request', login);
}

export default mySaga;

　

应用

import createSagaMiddleware from 'redux-saga'
import saga from './sagas'

// 1.创建中间件
const mid = createSagaMiddleware();
// 2.应用中间件
const store = createStore(
    // reducer模块化，合并
    combineReducers({ counter, user }),
    applyMiddlerware(logger, mid)
)

mid.run(saga);
export default store;

user.redux.js 

export function login (){

　　return {type: 'login_request'}

}

login.js

import { login } from './redux/user.redux.js
import { connect } from 'react-redux'

@connect(
    state => state,
    { login }   
)

export default Login extends Component{
   render(){
       return(
            <div>
                 <button onClick={ () => this.props.login }>登录</button>
            </div>
       )
   }        
}