Editing WebApplicationInterface (section)

=== Middleware: Components that Play Both Sides ===

Note that a function ''may'' play both the role of a server with respect to some application(s), while also acting as an application with respect to some server(s).  Such "middleware" components can perform such functions as:

* Routing requests to different applications based on the request URL.  This can be used to have several application or frameworks run side-by-side in the same server.
* Perform content postprocessing.
* Load an application dynamically (using for example the GHC API) on every request removing the manual recompilation step while developing.

<haskell>
-- TODO: Add example.
</haskell>