config.js

const  config = {
  wssURL: 'wss://www.example.com:8888',
  baseURL: 'https://www.example.com'
  // baseURL: 'http://example.test'
}

module.exports = config;

request.js

const app = getApp();
const config = require('./config');

class Request {
  constructor(parms) {
    this.withBaseURL = parms.withBaseURL;
    this.baseURL = parms.baseURL;
  }

  get(url, data) {
    return this.request('GET', url, data)
  }

  post(url, data) {
    return this.request('POST', url, data)
  }

  put(url, data) {
    return this.request('PUT', url, data)
  }

  delete(url, data) {
    return this.request('DELETE', url, data)
  }

  request(method, url, data) {
    const vm = this;
    data.from = 'mp';
    return new Promise((resolve, reject) => {
      wx.request({
        url: vm.withBaseURL ? vm.baseURL + url : url,
        data,
        method,
        header: {
          'token': app.globalData.token,
        },
        success(res) {
          if (res.data.code === -1) {
            const pages = getCurrentPages();
            const currentPage = pages[pages.length - 1];
            const current_url = currentPage.route;
            wx.redirectTo({
              url: '/pages/bind/index?from=' + current_url//实际路径要写全
            })
          } else if (res.data.code === 0) {
            wx.showToast({
              title: res.data.msg,
              icon: 'error',
              duration: 3000
            });
          } else {
            resolve(res)
          }
        },
        fail() {
          reject({
            msg: '请求失败',
            url: vm.withBaseURL ? vm.baseURL + url : url,
            method,
            data
          })
        }
      })
    })
  }
}

const request = new Request({
  wssURL: config.wssURL,
  baseURL: config.baseURL,
  withBaseURL: true
});

module.exports = request;