Flask系列之自定义中间件

            from flask import Flask

            app = Flask(__name__)

            @app.route('/index')
            def index():
                return 'Hello World'


            class Middleware(object):

                def __init__(self,old_wsgi_app):
                    self.old_wsgi_app = old_wsgi_app

                def __call__(self, *args, **kwargs):
                    response = self.old_wsgi_app(*args, **kwargs)
                    return response

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