A Haskell example that provides an API with Scotty, talks to Cassandra with cql-io, and Kafka with hw-kafka-client.
You need Haskell Stack installed to play with this.
From the root folder run
docker-compose up
Go into src/auh and run
stack setup
stack build
stack exec auh-exe
Slides are available at https://ashic.github.io/actually-using-haskell/#/