python - Get current user Async in Tornado -

when use get_current_user() need check few things in redis (use tornado-redis) asynchronously.

i doing following:

def authenticated_async(method):      @gen.coroutine     def wrapper(self, *args, **kwargs):         self._auto_finish = false         self.current_user = yield gen.task(self.get_current_user_async)         if not self.current_user:             self.redirect(self.reverse_url('login'))         else:             result = method(self, *args, **kwargs) # updates             if result not none:                 yield result     return wrapper  class baseclass():      @gen.coroutine     def get_current_user_async(self,):          auth_cookie = self.get_secure_cookie('user') # cfae7a25-2b8b-46a6-b5c4-0083a114c40e         user_id = yield gen.task(c.hget, 'auths', auth_cookie) # 16         print(123, user_id)         return auth_cookie if auth_cookie else none 

for example, want use authenticated_async decorator:

class indexpagehandler(baseclass, requesthandler):      @authenticated_async     def get(self):         self.render("index.html") 

but have in console 123.

whats wrong? how fix that?

thanks!

update

i have updated code yield result.

in auth_cookie have cfae7a25-2b8b-46a6-b5c4-0083a114c40e.

then go terminal:

127.0.0.1:6379> hget auths cfae7a25-2b8b-46a6-b5c4-0083a114c40e "16" 

so,

user_id = yield gen.task(c.hget, 'auths', auth_cookie) print(123, user_id) 

must return

123 16 

but returns 1 123

update 1

with

class indexpagehandler(baseclass, requesthandler):     @gen.coroutine     def get(self):         print('cookie', self.get_secure_cookie('user'))         user_async = yield self.get_current_user_async()         print('user_async', user_async)         print('current user', self.current_user)         self.render("index.html",) 

in console have:

cookie b'cfae7a25-2b8b-46a6-b5c4-0083a114c40e' 123  user_async b'cfae7a25-2b8b-46a6-b5c4-0083a114c40e' current user none 

get_secure_cookie() returns byte string; since cookie printed out b' prefix must on python 3. on python 3, tornado-redis appears expect unicode strings instead of byte strings; input not unicode string converted 1 str() function. adds b' prefix seen above, querying b'cfae7a25-2b8b-46a6-b5c4-0083a114c40e', not cfae7a25-2b8b-46a6-b5c4-0083a114c40e

the solution convert cookie str before sending redis: auth_cookie = tornado.escape.native_str(auth_cookie)