React native redux api login token fetch

React native redux api login token fetch

for

want to make app created by react native with redux can login and fetch data  from the third party.

code

/actions/user.js

import base64 from 'base-64'
import {API_HOST,LOGIN_URL} from '../configure/Api'
export const LOGIN_REQUEST = 'login.request'
export const LOGIN_SUCCESS = 'login.success'
export const LOGIN_FAILURE = 'login.failure'

export function loginSuccess(data) {
  return {
    type: LOGIN_SUCCESS,
    data
  }
}
function loginRequest() {
   return {
      type: LOGIN_REQUEST
   }
}
export function loginFailure(error) {
  return {
    type: LOGIN_FAILURE,
    error
  }
}

export function login(username, password) {
  return (dispatch) => {

    // We use this to update `isLoggingIn` to `true` in our store, which can
    // be used to display an activity indicator on the login view.
    dispatch(loginRequest())

    // Note: This only works in node.js, use an implementation that works
    // for the platform you're using, e.g.: base64-js for React Native, or
    // btoa() for browsers.
    const headers=new Headers({"Content-Type":"application/json","Accept":"application/json"});
    return fetch(API_HOST+LOGIN_URL,{
      method:'post',
      headers:headers,
      body:JSON.stringify({
          name:'admin1',
          password:'admin1'
      })
    })
    .then(response=>response.json())
    .then(data => {
          console.log(data);
          //成功
          if(data.status===true){
              dispatch(loginSuccess({name:data.ijoy.name,token:data.token}))
          }else {
            dispatch(loginFailure('返回数据 出错'))
          }
    })
    .catch(e=>{
      dispatch(loginFailure('fetch 出错'))
    }).done()
  }
}

Note
user的action，action 返回json,或者调整的方法；fetch body中传递需要用JSON.stringify来转为json字符串，
（后端处理JSONObject.fromObject(request.getReader().readLine()大致的代码来处理，验证登录后，生产user_id+":"+时间进行编码后，返回为token)）

/actions/employee.js

import base64 from 'base-64'
import {API_HOST,EMPLOYEELIST_URL} from '../configure/Api'
export const EMPLOYEE_LIST_SUCCESS = 'EMPLOYEE_LIST_SUCCESS'
export const EMPLOYEE_LIST_FAILURE= 'EMPLOYEE_LIST_FAILURE'
import {connect} from 'react-redux'
export function employeeListSuccess(list){
  return{
    type:EMPLOYEE_LIST_SUCCESS,
    list
  }
}
export function employeeListFailure(msg){
  return{
    type:EMPLOYEE_LIST_FAILURE,
    msg
  }
}
export function employeeList(user) {

  return (dispatch,getState) => {
    const taken=getState().user.token;
    console.log("getState().user="+getState().user);
    const headers=new Headers({"Content-Type":"application/json","Accept":"application/json"});
    headers.append("Authorization",taken);
    console.log("taken="+taken);
    fetch(API_HOST+EMPLOYEELIST_URL,{
      method:'get',
      headers:headers
    })
    .then(response=>response.json())
    .then(data => {
          console.log(data);
          //成功
          if(data.status===true){
              dispatch(employeeListSuccess(data.ijoy))
          }else {
            dispatch(employeeListFailure('返回数据 出错'))
          }
    })
    .catch(e=>{
      dispatch(loginFailure('fetch 出错'))
    }).done()
  }

}

Note
getState,在action可以获得，取出里面的token,进行base64编码后放入header中请求（java后端用request.getHeader("Authorization"),进行Base64.decode进行解码，获得用户的id,是否存在，来判断是否登录。）

/configure/Api.js

export const API_HOST="http://192.168.100.116:8889/plat";

export const LOGIN_URL="/loginInfo/check/api";

export const EMPLOYEELIST_URL="/employee/api"

/containers/app.js

import React,{Component} from 'react';
import {
  View,
  Text
} from 'react-native';

import { createStore, applyMiddleware, combineReducers,compose } from 'redux'
import {Provider} from 'react-redux'
import thunk from 'redux-thunk'
import devTools from 'remote-redux-devtools';
import * as reducers from '../reducers'

import Login from '../pages/Login'
const reducer=combineReducers(reducers);
function configureStore(initialState){
  const enhancer=compose(
    applyMiddleware(thunk),
    devTools()
  );
  const store =createStore(reducer,initialState,enhancer);
  devTools.updateStore(store);
  return store;
}

const store=configureStore({});


export default class App extends Component{
  render(){
    return(
       <Provider store={store}>
         <Login />
       </Provider>
    );
  }
}
    Note
    加入了redux devtool  方便调试

/pages/Login.js

import React ,{Component} from 'react';
import{
    View,
    Text,
    TouchableWithoutFeedback
} from 'react-native'
import {login} from '../actions/user'
import {employeeList} from '../actions/employee'
import {connect} from 'react-redux'
import {bindActionCreators} from 'redux';
export default class Login extends Component{
   render(){
     const{state,actions}=this.props;
     console.log(state);
     console.log(actions);
     console.log(state.list);
     console.log(state.employeeList  && state.employeeList.length);
     console.log("employeeList="+state.employeeList);
     return(
       <View>
            {state.isLoggingIn===true? <View><Text>正在登录</Text></View>:null}
            {state.isAuthenticated===true?<Text>{state.name}+已经登录</Text>:null}
            {state.error===true?<Text>{state.error}</Text>:null}
            <TouchableWithoutFeedback onPress={()=>actions.login('li','12')}>
               <View>
                 <Text>登录</Text>
               </View>
            </TouchableWithoutFeedback>
            <TouchableWithoutFeedback onPress={actions.employeeList}>
               <View>
                 <Text>获得employeeList</Text>
               </View>
            </TouchableWithoutFeedback>
            {state.employeeList !==null ?
              state.employeeList.map((item,i)=>{
                return(
                  <View key={item.id}><Text>{item.name}</Text></View>
                );
              })
              :<View><Text>没有结果</Text></View>
            }
       </View>
     );
   }
}

export default connect(
  state=>({state:Object.assign({},state.user,state.error,state.employee)}),
  (dispatch)=>({
    actions:bindActionCreators({employeeList,login},dispatch)
  })
)(Login)

Note
Object.assign讲各个的json拼成一个json,注意第一个参数为什么是{},而不是state.user,connect 第一个方法参数是将state里面的数学mapto 组件的this.props,第二个方法参数是将action mapto this.props,注意多个action加入的方法，
map function 里的变量需要家{}。

/reducers/index.js

import user from './user';

import user from './user';
import employee from './employee'
export {
  user,
  employee
};

Note
便于将reducer结合成reducers.

/reducers/user.js

import {
  LOGIN_REQUEST,
  LOGIN_FAILURE,
  LOGIN_SUCCESS
} from '../actions/user'

export default function user(state = {
  isLoggingIn: false,
  isAuthenticated: false
}, action) {
  switch(action.type) {
    case LOGIN_REQUEST:
      return {
        isLoggingIn: true, // Show a loading indicator.
        isAuthenticated: false
      }
    case LOGIN_FAILURE:
      return {
        isLoggingIn: false,
        isAuthenticated: false,
        error: action.error
      }
    case LOGIN_SUCCESS:
      return {
        ...action.data,
        isLoggingIn: false,
        isAuthenticated: true, // Hide the login view.
      }
    default:
      return state
  }
}

Note
...action.data,将data里面的属性转成user的属性，不定参数需要放在最前面。

/reducers/employee.js

import {
  EMPLOYEE_LIST_SUCCESS,
  EMPLOYEE_LIST_FAILURE
} from '../actions/employee'

export default function employee(state={
  employeeList:null,
  status:false,
  msg:null
}, action) {
  switch(action.type) {
    case EMPLOYEE_LIST_SUCCESS:
      return {
        ...state,
        employeeList:action.list,
        status:true
      }
    case EMPLOYEE_LIST_FAILURE:
      return {
        ...state,
        msg:action.msg
      }
    default:
      return state
  }
}

index.android.js

import React from 'react'
import{
  AppRegistry
} from 'react-native'
import App from './app/containers/app'
AppRegistry.registerComponent('demo',()=>App);

package.json

{
  "name": "demo",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "start": "node node_modules/react-native/local-cli/cli.js start",
    "postinstall": "remotedev-debugger"
  },
  "dependencies": {
    "react": "15.2.1",
    "react-native": "^0.30.0",
    "react-native-material-design": "^0.3.7",
    "react-native-material-kit": "^0.3.2",
    "react-redux": "^4.4.5",
    "redux": "^3.5.2",
    "redux-persist": "^3.4.0",
    "redux-thunk": "^2.1.0"
  },
  "devDependencies": {
    "remote-redux-devtools": "^0.4.2",
    "remote-redux-devtools-on-debugger": "^0.6.2",
    "remotedev-server": "^0.1.8"
  }
}

refs

​​http://stackoverflow.com/questions/34815853/react-native-fetch-and-basic-authentication​​

​​https://stackoverflow.com/questions/35677062/react-native-redux-basic-authentication​​

​​https://jwt.io/​​

​​https://medium.com/@jtremback/oauth-2-with-react-native-c3c7c64cbb6d#.5ynnfoblm​​

​​http://www.jianshu.com/p/2c43860b0532​​​
​​​https://github.com/ninty90/react-native-redux-demo​​

update 2016-08-23
last update 2016-08-24