WeChat applet es6-promise.js encapsulates requests and handles asynchronous processes

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WeChat applet es6-promise.js Encapsulating requests and processing asynchronous processes

Download es6-promise.js and place it in the libs folder in the root directory;

Create a new httpsPromisify.js in the utils folder in the root directory. That is, define the method of encapsulating the request

var Promise = require('../libs/es6-promise.min')
function httpsPromisify(fn) { 
 return function (obj = {}) {  
  return new Promise((resolve, reject) => {   
   obj.success = function (res) {    
    resolve(res)   
   }   
   obj.fail = function (res) {    
    reject(res)   
   }   
   fn(obj)  
  }) 
 }
}
module.exports = { 
 httpsPromisify: httpsPromisify
}
　　

Call the method:

var Promisify = require('../../utils/httpsPromisify')  Page({

  onLoad: function(){
   Promisify.httpsPromisify(wx.request)({
    url: "https://XXXXXXX",
    header: {
     "Content-Type": "application/x-www-form-urlencoded"
    },
    method: "POST",
    data: {

    }
   }).then(function(res){
     console.log(res)
   })    

  }, })

Note:

There are currently many third-party libraries that support promise, such as $q.js, bluebird.js, etc., but it should be noted that these are not supported in WeChat development tools It can be used normally, but it has no effect on the real machine;

So use es6-Promise.js. This personal test is perfect, and the file size is much smaller than others, so it is recommended for everyone to use it.

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