[racket] Architecture advice for new project

From: Danny Yoo (dyoo at hashcollision.org)
Date: Tue May 15 13:47:16 EDT 2012

> In the Rack middleware in the chain, each piece of the middleware receives a
> hash which encapsulates the response/requests, and the middleware mutates
> this hash depending on the functionality it adds.

Could each middleware layer return the updated hash value?  Racket has
functional hash tables alongside mutable ones.


Posted on the users mailing list.