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chikuykuu

v1.1.4

Published

* ### 安装:

Downloads

4

Readme

微信开发中常用的工具,目前主要是网络请求方法的增强,以及对几乎所有的异步操作的Promisify.

  • 安装:

yarn add @evolify/wxtools

或者

npm i @evolify/wxtools
  • 小程序网络请求

 把wx.request封装成了Promise风格的。使用的时候使用get、post等方法即可。支持添加拦截器,可以单独设置header、token、baseUrl等。下面以post方法为例。

  • 引入js文件:

    import {request as req} from '@evolify/wxtools'
  • 配置Request,一般在小程序App.js>onLaunch方法中配置

      configReq(){
        //配置baseUrl和拦截器,baseUrl例如 /api
        req.baseUrl(config.serverUrl)
          .interceptor(res=>{
            switch(res.data.code){
              case 401: 
                wx.showToast({
                  icon: 'loading',
                  title: '重新登录',
                })
                this.login()
                return false;
              case 0:
                return true;
              default:
                wx.showToast({
                  title: '操作失败',
                })
                return false;
            }
          })
      },
  • 登录成功后设置token

    req.token(token)
  • 发起网络请求

    req.post('/goods',data,header)
    	.then(res=>res.data.data)
    	.then(data=>{
        	wx.showToast({
                title:'创建成功'
            })
    	})
  • 异步操作Promise的使用

  wx api里面很多操作都是异步的,基本上参数形式都差不多.这里做了Promise封装,方法名称、参数和官方api一致,只是参数里面不用传success、fail回调。以showToast为例,简单对比一下:
  常规用法:

wx.showToast({
  title: '成功',
  icon: 'success',
  duration: 2000,
  success: ()=>{
    console.log('调用成功')
  },
  fail: err=>{
    console.error('调用失败',err)
  }
})

  Promise用法:

import {Wx} from '@evolify/wxtools'

Wx.showToast({
  title: '成功',
  icon: 'success',
  duration: 2000,
}).then(()=>{
  console.log('调用成功')
}).catch(err=>{
  console.error('调用失败',err)
})

  其他的api用法都一样,方法、参数、返回值可以参考官方文档。如果有错误或者有缺失的,欢迎提issue.

  • Promisify

    import {promisify} from '@evolify/wxtools'
      
    function func({
      param1,
      param2,
      success: ()=>{},
      fail: ()=>{}
    }){
      // do something
      success()
    }
      
    const promisifyFunc = params => promisify(func, params)
      
    // then you can use
    promisifyFunc(data)
    	.then(res=>{
      		// on success
    	})
    	.catch(err=>{
      	// on failed
    })
    // instand of 
    func({
      ...data,
      success: res=>{
          
      },
      fail: res => {
          
      }
    })
  • 定时任务队列

     有些场景,我们需要定义一序列的延时任务,比如就界面动画而言,一些元素依次进场,并且有一定间隔,这时候如果我们直接用setTimeout, 就会遇到毁掉地狱的问题,代码很难看,且难以维护。这里封装了一个工具,可解决此类问题,具体介绍请参考文章:js定时任务队列,用法如下:

    import {Schedule} from '@evolify/wxtools'
      
    new Schedule().task(task1)
      .delay(1000).task(()=>this.setData({title:'Shedule'}))
      .delay(500).task(task3)