我有以下中间件:
from werkzeug.wrappers import Request
from datetime import datetime
class TimingMiddleware(object):
def __init__(self, app):
self.app = app
def __call__(self, environ, start_response):
request = Request(environ)
startTime = datetime.now()
response = self.app(environ, start_response)
endTime = datetime.now()
timeTaken = (endTime-startTime).total_seconds()
return response
我想将此 timeTaken
值添加到响应的 header 中。
我尝试过从 Flask 导入并使用 make_response 和 Response 但没有成功。
最佳答案
这很有趣。这是我快速拼凑而成的。似乎有效:
class TimingMiddleware:
def __init__(self, app):
self.app = app
def __call__(self, env, start_response):
start_time = datetime.now()
def injecting_start_response(status, headers, exc_info=None):
end_time = datetime.now()
time_taken = (end_time - start_time).total_seconds()
headers.append(('X-Time-Taken', str(time_taken)))
return start_response(status, headers, exc_info)
return self.app(env, injecting_start_response)
关于Python flask : I have a flask middleware in which I want to calculate the time taken by the requests and add it to the header of the response,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/59254866/