now it is the case that when app.js performs login, request the custom token returned by the code request backend to be added to the encapsulated request request

but now the encapsulated request is executed because async doesn"t know how to get the returned custom tocken.

app.js

wx.login({
                  success: function(res) {
                        if (res.code) {
                              const params = {
                                    appid: "wx66e4ec7b580c2658",
                                    grant_type: "authorization_code",
                                    js_code: res.code,
                                    secret: "8028563818513852479da62c3004afc2"
                              }
                              handleLogin.loginServer(params).then((res) => {
                                    console.log(res)
                                    wx.setStorageSync("access_token", res.data)
                                    wx.setStorageSync("login", 0)
                                    // wx.setStorageSync("access_token", "aaa")
                              })
                        }
                        else{
                              showToast()
                        }
                  },
                  fail:function(err){
                        showToast()
                  }
            })

handleLogin.js

// 
const app = getApp()

function loginServer(params) {
      let promise = new Promise(function(resolve, reject) {
            wx.request({
                  url: `http://3b58503d.ngrok.io/20180507/net-cosrun-project/web/v1/activity/login`,
                  data: params,
                  method: "POST",
                  success: function(res) {
                        resolve(res);
                  },
                  fail:function(err){
                        reject(err);
                        wx.setStorageSync("login", 1)
                  }
            })
      })
      return promise
}

function showToast(content = "") {
      wx.showToast({
            title: content,
            icon: "none"
      })
}

module.exports = {
      loginServer: loginServer,
      showToast: showToast
}

encapsulated request promise.js

const app = getApp()
const handleLogin = require("./handleLogin.js");

let token = ""

function request(url, params, method) {
      const appid = "miinno.com"
      const secret = "123456"
      const version = "api/v1"
      const timestamp = new Date().getTime()
      const a = appid + "APPID" + secret + "SECRET" + timestamp
      const sign = sha1(appid + "APPID" + secret + "SECRET" + timestamp)
      token = sign + "." + timestamp + "." + version
      // console.log(wx.getStorageSync("access_token"))
      let promise = new Promise(function(resolve, reject) {
            if(wx.getStorageSync("login")=="0"){
                  wx.request({
                        url: url,
                        data: params,
                        header: {
                              "X-Token-With": token,
                              "Authorization": `Miinno ${wx.getStorageSync("access_token")}`
                        },
                        method: method || "GET",
                        success: function (res) {
                              //     app.globalData.netWorkData = res.data
                              resolve(res);
                              if (res.data.hasOwnProperty("error")) {
                                    console.log(url)
                                    if (url != "http://f63aca00.ngrok.io/20180507/net-cosrun-project/web/v1/vote/vote") {
                                          wx.showModal({
                                                title: "",
                                                content: res.data.error.message,
                                                success: function (res) {
                                                      if (res.confirm) {

                                                      } else if (res.cancel) { }
                                                }
                                          })
                                    }
                              }
                        }
                  })
            }
            else{
                  console.log("aa")
                  // handleLogin.login(() => {
                  // })
            }
      });
      return promise
}

seek advice from the great gods