We have many booking calendars made with ProcessWire (own databases) and I want to do a web app (SQL) which allows user to log in. First, the user chooses the right calendar and then (s)he have to log in. The user can be from any of those calendars and the app is not running on ProcessWire (it can if necessary). So if there any way to make sure that the user has rights to the calendar (s)he tries to log in and if the password is correct.
Is there any better way to do this? I could also use PIN codes or something, but those need to be encrypted too.
Multiple ProcessWires
A lot of users per ProcessWire
Everyone can log in to the web app (when using right calendar)