react-native 请求封装

npm install axios

import React, { Component } from ‘react‘;
import axios from ‘axios‘

let token = ‘‘;

var instance = axios.create({
    baseURL: ‘https://baidu.com‘,
    timeout: 5000,
    headers: {‘X-Custom-Header‘: ‘foobar‘},
     // `transformResponse` allows changes to the response data to be made before
    // it is passed to then/catch
    transformResponse: [function (data) {
        /**
         * 通过返回的data，来统一处理异常
         */
        return data;
        // Alter defaults after instance has been created 处理token
        instance.defaults.headers.common[‘Authorization‘] = token;    
    }],
});

export default instance;

import axios from ‘../http‘   //引入上边的index文件

  // this.props.navigation.navigate(‘Page4‘,params);  具体请求方法
        axios.get(‘/api/cms/eleser/homePage‘)
            .then(res => {
                console.log(res);
            }), err => {
                console.log(`${err}`)
            }