WeChat applet front end Promise package

config.js

const config = {
 base_url_api: "https://douban.uieee.com/v2/movie/",
}

export {config}

http.js

import {config} from "../config";
class HTTP {
 requset({ url, method = "GET", data = {} }) {
 const promise = new Promise((resolve, reject) => {
 wx.request({
 url : config.base_url_api + url,
 data,
 method,
 header: {
'Content-Type':'json'
 },
 success : res => {
 //Convert status code toString() into string
 const statusCode = res.statusCode.toString();

 if (statusCode.startsWith(" 2")) {
 resolve(res.data)
} else {
 this._show_error();
 }
 },
 fail: res => {
 reject(err);
 this._show_error();
 }
 })
 })
 return promise;< br /> }
 _show_error() {
 wx.showToast({
 title:'Network Error',
 icon:'none'
 })
 }
}
export {HTTP }

model/movie.js

import {HTTP} from "../utils/http";
class MovieModel extends HTTP{
 getInTheaters(){
 return this.requset({
 url:"in_theaters"
 })
 }
 getTop250 (){
 return this.requset({
 url:"top250"
 })
 }
 getComingSoon(){
 return this.requset( {
 url:"coming_soon"
 })
 }
}
export {MovieModel};

pages/index/index.js< /p>

const app = getApp();
import {MovieModel} from "../../model/movie";
const movieMo del = new MovieModel();
Page({
 onLoad(){
 // movieModel.getInTheaters().then(res=>{
 // console.log( res)
 // })
 const inTheaters = movieModel.getInTheaters()
 const top250 = movieModel.getTop250();
 const comingSoon = movieModel.getComingSoon();
 Promise.all([inTheaters,top250,comingSoon]).then(res=>{
 let[inTheaters,top250,comingSoon] = res;
 console.log(inTheaters)
 })
 }
})

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