小程序获取用户openid

export const SECRET = "SECRET "
export const APPID = "APPID "

export const GET_OPENID_URL = (code: string) => {
      return `https://api.weixin.qq.com/sns/jscode2session?appid=${APPID}&secret=${SECRET}&js_code=${code}&grant_type=authorization_code`
}




import { GET_OPENID_URL } from "../contanst/index";

export const login = () => {
      return new Promise(async (resolve, reject) => {
            const code = await wx.login();
            if (code && code.code) {
                  const url = GET_OPENID_URL(code.code)
                  await wx.request({
                        url,
                        method: "GET",
                        success: res => {


                              resolve(res.data);
                        },
                        fail: error => {
                              console.log(error, 'error');

                              wx.showToast({
                                    title: "获取openid失败",
                                    icon: "error"
                              })
                              reject("获取openid失败")
                        }
                  })




            } else {
                  wx.showToast({
                        title: "获取openid失败",
                        icon: "error"
                  })
                  reject("获取openid失败")
            }
      })


}

使用

 const user_key = wx.getStorageSync(USER_KEY);

            if (user_key) {
                  const obj = JSON.parse(user_key);
                  if (obj.session_key && obj.openid) {
                        this.globalData.user_open_info = {
                              session_key: obj.session_key,
                              openid: obj.openid
                        }
                        console.log(this.globalData.user_open_info, 'this.globalData.user_open_info');

                  }


            } else {
                  const loginRes = await login();
                  if (loginRes) {

                        wx.setStorage({

                              key: USER_KEY,
                              data: JSON.stringify(loginRes),
                        })

                  }
            }