== Request Handling Overview ==

On each request, trac will invoke multiple extension point interface implementations registered with the system.

Here is an initial diagram of what is going on when trac services a given request. Please note that the below sequence diagram misses error responses and, subsequently misses rendering of error pages.

=== Project Index Request Handling ===

[[Image(wiki:TracDev/RequestHandling:ProjectIndexRequestHandling.2.png,100%)]]

=== Generic Request Handling ===

[[Image(wiki:TracDev/RequestHandling:GenericRequestHandling.png,100%)]]