getUserid
getUserid is a convention used in software development for a function or method that retrieves the unique identifier of a user. The function typically returns a user ID that uniquely distinguishes a user within a system, such as an internal numeric ID, a UUID, or a string. The exact source of the ID depends on context: it may be stored in a user session, included in an authentication token, derived from a database record, or retrieved from a user profile object.
Common patterns involve getUserid being part of a user service, an authentication module, or a class that
Return values and error handling also vary. If no user is authenticated, getUserid may return null or
Security and privacy considerations include guarding against exposing internal IDs to unauthorized clients, validating the source