小程序支持async await

1、下载facebook的regeneratorRuntime

npm i regeneratorRuntime

把node_modules\regenerator-runtime路径下的runtime-module.js和runtime.js文件放到小程序开发文件内

2、在wxRequest和使用async await的js文件引入

import regeneratorRuntime from '../regenerator-runtime/runtime-module'

3、封装wxRequest，让它支持async-await

import regeneratorRuntime from '../regenerator/runtime-module';
const wxRequest = async (url, data = {}, method, hideLoading) => {
  //默认带上openid
  Object.assign(data, {
    openid: app.globalData.openid
  });
  let header = {
    'Content-Type': 'application/x-www-form-urlencoded',
  };
  //默认使用POST方式
  method = method || 'POST';
  // hideLoading可以控制是否显示加载状态
  if (!hideLoading) {
    wx.showLoading({
      title: '加载中...',
    })
  };
  let res = await new Promise((resolve, reject) => {
    wx.request({
      url: url,
      method: method,
      data: data,
      header: header,
      success: (res) => {
        if (res && res.data && res.data.status == 200) {
          resolve(res.data);
        } else {
          reject(res);
        }
      },
      fail: (err) => {
        reject(err);
      },
      complete: () => {
        wx.hideLoading();
      }
    });
  }).catch((e)=>{return e.data});
  return res;
}
export {
  wxRequest
}

4、使用async await的页面引入

import {
  wxRequest
} from "../../../../utils/wxRequest";
import regeneratorRuntime from '../../../../utils/regenerator/runtime-module';