Quick clarification -- by "every instance of my app", do you simply mean each separate request that comes into the app, or do you have different instances of the app running on different servers?
On Saturday, April 19, 2014 10:48:11 AM UTC-4, scruffy...@gmail.com wrote: > > My app uses a data service that requires periodically requesting an > access_token using my apps credentials given by the data service provider. > I send this token in the header of every request my app sends to the data > service, and I only know the token has expired when a request comes back > with a certain 403 response. At this point my app needs to request a new > access_token and the cycle continues. > > So every instance of my app needs to use the current access_token, and the > first instance which receives a 403 response needs to update the access > token for all instances. So I have a couple of questions: > > 1. At first I tried putting the shared access_token variable in a model > file, but I found that the view would always see access_token as defined in > the model file even if I tried declaring it global and changing it in a > controller (I guess model files are reloaded every action?), so instead I > defined db.access_token in the model and that worked. I can now change > db.access_token in a controller and see the change in the view. But is > this the proper way to share a variable across application instances? > > 2. Is there a way to make a thread-safe function in my application so that > every request to the data service requires access to some kind of Lock > object in order to be sure that if a 403 comes back a new access_token can > be obtained and assigned to db.access_token before another instance gets a > 403 response? > > Thank you very much in advance. Please note: I am fairly new to databases > and web frameworks in general (my Python is 'ok') so if you find yourself > confused by my question - think newbie. > > Scruffy > -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
