(Author here) There is a set of exercises that come with the slides at https://github.com/serras/lambdaconf-2015-web https://github.com/serras/lambdaconf-2015-w

(Author here) There is a set of exercises that come with the slides at https://github.com/serras/lambdaconf-2015-web https://github.com/serras/lambdaconf-2015-web In particular, they introduce the Aeson library for both producing and consuming JSON.