
The Domino Web Server Application Programming Interface (DSAPI) is a C APIthat allows you to write your own extensions to the Domino Web Server. DSAPI extensions, or filters, are notified whenever a particular event occurs during the processing of a request.
There are currently two events for which a filter can be written, for user authentication in particular. The Ticket Verifier for Lotus Domino binds itself to the user authentication requests and serves to authenticate a user.