The wxpy login page to log onto the two-dimensional code

from flask import Flask, Response
from flask.views import MethodView

from threading import Thread
from time import sleep

from wxpy import Bot

app = Flask(__name__)


class WxLoginView(MethodView):
    _qrcode = None

    def get(self):
        # 开启线程,不然不登录会阻塞住
        Thread(target=self.login).start()
        # 获取二维码,这是这个递归函数,最后返回的一定是二维码
        qrcode = self.get_qrcode()
        return Response(qrcode, mimetype='image/jpeg')

    def login(self):
        # 执行登录动作
        bot = Bot(qr_callback=self.qr_callback)

    def qr_callback(self, uuid, status, qrcode):
        # 将拿到的二维码赋值给self._qrcode
        self._qrcode = qrcode

    def get_qrcode(self):
        # 休眠0.1秒,等拿到了二维码之后再去返回,为了避免为空, 写成递归函数
        sleep(0.1)
        return self._qrcode if self._qrcode is not None else self.get_qrcode()


app.add_url_rule('/login', view_func=WxLoginView.as_view('login'))

if __name__ == '__main__':
    app.run()