uniapp如何封装request请求

const baseUrl = 'https://unidemo.dcloud.net.cn'   const request = (url = '', date = {}, type = 'GET', header = {}) => {    return new Promise((resolve, reject) => {        uni.request({            method: type,            url: baseUrl + url,            data: date,            header: header,            dataType: 'json',                 }).then((response) => {            setTimeout(function() {                uni.hideLoading();            }, 200);            let [error, res] = response;                    resolve(res.data);        }).catch(error => {            let [err, res] = error;            reject(err)        })    });}export default request

import request from 'common/request.js'Vue.prototype.$request = request

this.$request('/api/news', {// 传参参数名：参数值,如果没有，就不需要传}).then(res => {// 打印调用成功回调console.log(res)})

<template>    <view>        <uni-list>            <uni-list-item></uni-list-item>        </uni-list>    </view></template><script>    import uniList from "@/components/uni-list/uni-list.vue"    import uniListItem from "@/components/uni-list-item/uni-list-item.vue"    export default {        components: {            uniList,            uniListItem        },        data() {            return {                productList: [],            };        },        onLoad() {            this.getList();        },        methods: {            getList() {                this.$request(&#39;/api/news&#39;, {                    // 传参参数名：参数值,如果没有，就不需要传                    // "username": "john",                    // "key": this.searchValue                }).then(res => {                    // 打印调用成功回调                    console.log(res)                    this.productList = res;                })            },        }    }</script><style></style>