How vue3 solves the axios request encapsulation problem

vue3 actual axios request encapsulation problem

1. Create an http folder in the src directory, and create index.js, request.js, and api.js under the http folder

2. The role of index.js: used to export all interfaces defined by api.js, the code is as follows

export * from './api';

3. The request.js code is as follows:

import axios from 'axios';
import buildURL from 'axios/lib/helpers/buildURL';
import { merge } from 'axios/lib/utils';

//判断指定参数是否是一个纯粹的对象，所谓"纯粹的对象"，就是该对象是通过"{}"或"new Object"创建的
function isPlainObject (val) {
      return val && val.constructor.name === 'Object'
}

//请求之前进行拦截，可做的操作：1、添加loading的加载；2、添加请求头；3、判断表单提交还是json提交
let requestInterceptors = [
    config => {
        //添加loading的加载
        
        //添加请求头
        config.headers.authorization = sessionStorage.getItem('Token');
        //判断表单提交还是json提交
        if (config.emulateJSON && isPlainObject(config.data)) {
            config.data = buildURL('', config.data).substr(1);
        }
        return config;
    }
]

//请求响应之后进行拦截，可做操作：1、取消loading的加载；2、对返回状态进行判断：如请求错误、请求超时、获取数据失败、暂无数据等等
let responseInterceptors = [
    res => {
        //取消loading加载
        
        //对返回状态进行判断：如请求错误、请求超时、获取数据失败等等

        //返回结果
        return Promise.resolve(res);
    },
    err => {
        //取消loading加载
        
        //对返回状态进行判断：如请求错误、请求超时、获取数据失败等等

        //返回结果
        return Promise.reject(err);
    }
]

//组装请求
let serviceCreate = config => {
    let service = axios.create(merge({}, config));
    service.interceptors.request.use(...requestInterceptors);
    service.interceptors.response.use(...responseInterceptors);
    return service
}
serviceCreate();
export { serviceCreate, merge };

4. the api.js code is as follows :

import { serviceCreate, merge } from '@/http/request';

//这种方式可以采用单个项目的接口，也可以使用多个项目的接口，看自己的项目情况而定
let http0 = serviceCreate({
    baseURL: '/project1/api1',
    timeout: 15000,//请求超时
    emulateJSON: true,//默认表单提交
})
let http1 = serviceCreate({
    baseURL: '/project2/api2',
    timeout: 15000,//请求超时
    emulateJSON: true,//默认表单提交
})

//get请求示例
export function getData(params, config) {
    return http0.get('/project/list', merge(config, { params }));
}
//delete请求示例
export function deleteData(params, config) {
    return http0.delete('/project/list', merge(config,{ params }));
}
//post请求示例（表单提交）
export function postDataFrom(params, config) {
    return http0.post('/project/list', params, config);
}
//post请求示例（json提交）
export function postDataJson(params, config) {
    return http0.post('/project/list', params, merge(config, { emulateJSON: false }));
}
//put请求示例（表单提交）
export function putDataFrom(params, config) {
    return http0.put('/project/list', params, config);
}
//put请求示例（json提交）
export function putDataJson(params, config) {
    return http0.put('/project/list', params, merge(config, { emulateJSON: false }));
}

5. Call in the page

import { getData, deleteData, postDataFrom, postDataJson, putDataFrom, putDataJson } from "@/http";

getData({ name: "我是参数" }).then(res => { console.log("返回数据", res) })
deleteData({ name: "我是参数" }).then(res => { console.log("返回数据", res) })
postDataFrom({ name: "我是参数" }).then(res => { console.log("返回数据", res) })
postDataJson({ name: "我是参数" }).then(res => { console.log("返回数据", res) })
putDataFrom({ name: "我是参数" }).then(res => { console.log("返回数据", res) })
putDataJson ({ name: "我是参数" }).then(res => { console.log("返回数据", res) })

vue3 axios simple encapsulation tutorial

First create a new utils folder in the root directory, and create two new files below, requests .js and html.js

requests.js is used to introduce axios and set the root domain name and some default settings, interceptors, etc.

import axios from "axios";

const service = axios.create({
    baseURL: 'http://localhost:3000',
    timeout: 10000,
})

// 请求拦截器
service.interceptors.request.use(config=>{
    return config
},err=>{
    return Promise.reject(err)  //返回错误
})
    
// 响应拦截器
service.interceptors.response.use(res=>{
    return res
},err=>{
    return Promise.reject(err)  //返回错误
})


export default service

After writing, expose the created instance object and introduce it in html.js

The function of the html.js file is to call the instance object of requests and all access Store it in this file (api) and import it as needed when using it.

import request from "./requests";
export const GetPosts = () => request.get('posts/1')
export const GetsearchData = (params) => request.get('/list',{params})
export const PostPosts = (params) => request.post('posts',params)

Introduced files:

<template>
    <el-button type="primary" @click="clickGet">点我发送get请求</el-button>
    <el-button type="primary" @click="clickPost">点我发送post请求</el-button>
    <el-button type="primary" @click="clickPut">点我发送put请求</el-button>
    <el-button type="primary" @click="clickDel">点我发送delete请求</el-button>
</template>

<script>
import { GetPosts, PostPosts } from "../../utils/html"

export default {
    setup(){
        function clickGet(){
            GetPosts().then(res => {
                console.log(res)
            })
            // axios({
            //     method: &#39;GET&#39;,
            //     url: &#39;http://localhost:3000/posts&#39;
            // }).then(res => {
            //     console.log(res)
            // })
        }
        function clickPost(){
            PostPosts({
                title: &#39;我超级喜欢打游戏&#39;,
                author: &#39;账本儿erer&#39;,
                age: &#39;24&#39;
            }).then(res => {
                console.log(res)
            })
        }
        function clickPut(){
            
        }
        function clickDel(){
            
        }
        return {
            clickDel,
            clickGet,
            clickPost,
            clickPut
        }
    }
}
</script>

<style>

</style>

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