I tried to implement GAE's webapp2 session, but there seems very little documentation about it. According to http://webapp-improved.appspot.com/api/webapp2_extras/sessions.html, my steps are as follows:
1.Configure and add config to the main application:
config = {}
config['webapp2_extras.sessions'] = {
'secret_key': 'my_secret_key',
}
app = webapp2.WSGIApplication([...], config=config)
2.Create session in the login handler
# Delete existent session
--> not mention in the tutorial
# member is found
self.session_store = sessions.get_store(request=handler.request)
self.session['account'] = member.account
3.Check if a session exists at various locations in my program
if self.session['account']:
# Session exists
4.Delete session when user logs out
--> not mentioned in the tutorial
My questions:
I got error message " ... object has no attribute 'session'" during the session creation process (Step 2)
How do I delete a session in steps 2 and 4?
Is the overall session management process correct?
Thanks.
Here is an example of the handler and how to use webapp2 extra sessions
main.py with the BaseHandler and a MainHandler
import webapp2
from webapp2_extras import sessions
class BaseHandler(webapp2.RequestHandler): # taken from the webapp2 extrta session example
def dispatch(self): # override dispatch
# Get a session store for this request.
self.session_store = sessions.get_store(request=self.request)
try:
# Dispatch the request.
webapp2.RequestHandler.dispatch(self) # dispatch the main handler
finally:
# Save all sessions.
self.session_store.save_sessions(self.response)
@webapp2.cached_property
def session(self):
# Returns a session using the default cookie key.
return self.session_store.get_session()
class YourMainHandler(BaseHandler):
def get(self):
....
self.session['foo'] = 'bar'
def post(self):
foo = self.session.get('foo')
And if you have a seperate login.py :
.... other imports
import main
class Login(main.BaseHandler):
def get(self):
....
self.session['foo'] = 'bar'
def post(self):
foo = self.session.get('foo')