diener

Utility monad stack to be used in servant

Instead of running in IO, you can use servant with the monad called "Diener". It has

• logging functionality
• a reader (among others: for database connections)
• its own errors
• convenience function for lifts

example-persistent

A full example web-server application, using Sqlite3 and logging

example-mongodb

A full example web-server application, using MongoDB. Check out the handler.hs to see how you can use type-classes to fine-tune effects.