You seem to be mixing up different aspects here. 1. Trying to control access to a web app through device-level details is *not* a viable option. The whole point of web apps (as opposed to ones installed on a user's machine under a specific OS) is that the machine they are running on is mostly irrelevant.
2. For a demo, you are better off handing out a default user-name and password - and when the demo period has expired, then simply deactivating that user. 3. Assuming that the software is now running & the client has purchased usage for N users; then an app such as this one (https://pypi.org/project/django-limits/) can ensure they do not exceed their allowed number. 4. For generation of an ID to help track products (I assume you mean like goods that are being sold), have a look at the UUIDField - https://www.geeksforgeeks.org/uuidfield-django-models/ HTH Derek On Tuesday, 6 April 2021 at 08:50:51 UTC+2 [email protected] wrote: > Can any one provide me reference regarding license (Serial Key) server > system in django, > where , > we can generate unique serial key for products, > we can validate user subscription, > Clients can run demo (limited features), > and with that serial key users can run with limited device,(Device lock) > > Hopefully can I get some reference , Pease provide me some materials in > django. > -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/5f2858da-48d9-4a11-ba3b-3d8c5e3c7e84n%40googlegroups.com.

