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Most people do not understand the knowledge points of this article "how to use es6-promise.js to encapsulate requests and handle asynchronous processes", so the editor summarizes the following contents for you. The content is detailed, the steps are clear, and it has certain reference value. I hope you can get something after reading this article. Let's take a look at this article entitled "how WeChat Mini Programs uses es6-promise.js to encapsulate requests and handle asynchronous processes".

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

Download es6-promise.js under the libs folder in the root directory

Create a new httpsPromisify.js under the root directory utils folder, that is, define the method to encapsulate 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 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:

At present, there are many third-party libraries that support promise, such as $q.jsdybluebird.js, etc., but it should be noted that these can be used normally on Wechat development tools, but there is no effect on the real machine; so with es6-Promise.js, this personal test is perfect, and the file size is much smaller than the others, so it is recommended that you use it.

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