python – 如何在Flask MIddleware中访问请求

Flask app – test.py

from flask import Flask
from middleware import TestMiddleware
app = Flask(__name__)

app.wsgi_app = TestMiddleware(app.wsgi_app)

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

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

middleware.py：

from flask import request

class TestMiddleware(object):

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

    def __call__(self,environ,start_response):
        # How do I access request object here.
        print "I'm in middleware"
        return self.app(environ,start_response)

我理解可以在Flask应用程序上下文中访问请求.我们通常使用

with app.test_request_context()

但在中间件中,我无法访问Flask app对象.

我该怎么办？

谢谢你的帮助..