What is the ecosystem for Haskell web development? [closed]

Question

Inspired by this question and a recent affair, I'm wondering what's involved with Haskell web development.

• Are there any Haskell web frameworks or template engines?
• How would hosting a Haskell site work, are there suitable web servers?
• Is Haskell too complex for the usual rapid development and prototyping based workflow often used in web development?
• Are there examples of existing Haskell web applications?

Answer 1

I have done real production web applications in Haskell. Here is the stack I used:

• PostgreSQL database backend
• HDBC Postgres to connect to it
• XHTML to generate Html. It is a bit of a funny syntax, but at least you have lambda-abstraction.
• Fastcgi to connect the backend to the lighttpd, doing the web serving.

The whole web application is a single haskell program, compiled to native code ghc. I wrote the code to do request routing (and reverse routing) by hand.