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2.7 Procedure Invocation upon Request

The web-server/dispatchers/dispatch-pathprocedure module defines a dispatcher constructor for invoking a particular procedure when a request is given to a particular URL path.
(make path proc)  dispatcher/c
  path : string?
  proc : (request? . -> . response/c)
Checks if the request URL path as a string is equal to path and if so, calls proc for a response.

This is used in the standard Web Server pipeline to provide a URL that refreshes the password file, servlet cache, etc.