Vorple is a simple framework for web applications that just want to send and receive JSON.
Take a look at the example to see how it works!
Vorple isn't on Hackage yet, so you'll have to clone it from here. I highly recommend using cabal-dev to install Vorple's dependencies in a sandbox.
cabal install cabal-dev # if you don't have cabal-dev yet
git clone git://github.com/ktvoelker/vorple.git
cd vorple
cabal-dev install
If you want to run the test suite, you will also need my as-yet-unpublished cookie-jar package.
cd ..
git clone git://github.com/ktvoelker/cookie-jar.git
cd vorple
cabal-dev add-source ../cookie-jar
cabal-dev configure --enable-tests
cabal-dev test