在python Tornado服务器上处理许多路径的最佳方法是什么？

Question

class Application(tornado.web.Application):
    def __init__(self):
        handlers = [
        (r"/", MainHandler),
        (r"/auth/login", AuthLoginHandler),
        (r"/auth/logout", AuthLogoutHandler),
        (r"/auth/register",RegisterHandler),
        (r'/user/([a-z\d.]{5,})/?',UserHandler),
        (r'/user/([a-z\d.]{5,})/friends',UserFriendHandler),
        (r'/user/([a-z\d.]{5,})/status',StatusHandler),
        (r'/user/([a-z\d.]{5,})/wall',WallHandler),
        (r'/actions/respond_friend',FriendActionHandler),
        ]

This is my handlers array. This is likely to grow even more. My question involves the line:

    (r'/actions/respond_friend',FriendActionHandler),

I plan on using this line to respond to friend requests via post, with the friends username as a post parameter. How would I retrieve this parameter when I send the post (where is it "stored")? Does it make more sense to do this:

(r'/user/([a-z\d.]{5,})/actions/respond_friend',FriendActionHandler),

Answer 1

You can use get_argument to get a request param inside of your post method

username = self.get_argument('username', None)

I don't know if it makes sense to pass the username through the url. If you are it would be duplicating it to post the username as well.

If a url param doesn't match the regex I believe tornado just raises a 404. So if you need more fine grained control over what errors are raised, it could make more sense to just post the username in the post body