scala-pet-store VS Http4s

- https://github.com/pauljamescleary/scala-pet-store

Hi guys, finish you know of any good github sample apps, written in scala, in proper functional style ? the ⠀goal is to see actual production code that is FP worthy, to look up to :) I am looking to see how FP looks in practice similar to https://github.com/pauljamescleary/scala-pet-store or https://github.com/hcwilhelm/twm I have 2 years of scala experience, mostly akka tech stack, and some basic cats knowledge. Thanks Mircea

https://github.com/pauljamescleary/scala-pet-store My case is the first one. I've been working with scala for a while using Akka actors, Akka http and Play and I would like to see the FP scala concept and its libraries working in a real project.

I learned a lot from this project. It's not a tutorial or a lib. It's a fully functional yet simple project: https://github.com/pauljamescleary/scala-pet-store.

One sample app using DDD I like is the Scala Pet Store.

There are functional frameworks: https://http4s.org/

If you look at the example it is listed as an import but there is no explicit reference to it. And if you were just doing basic synchronous responses then that would be the only time you would see it.

If you want something more powerful, pure-functional and you need to do complex, concurrency-heavy operations, have a look at http4s: https://http4s.org/

I don't think this is toxic but still, it doesn't sit well with me: https://github.com/http4s/http4s/issues/4718

http4s

Here is a possible sketch with the functional http4s library. In http4s, both Http clients and servers are modelled as functions from Http requests to an Http response generated from an IO action. This would be like a function Request => IO[Response], which in http4s is called an HttpApp.

Http4s: https://http4s.org/

Have you checked http4s? I'm using it as a lightweight HTTP server with routing, etc. It might be not your cup of tea, if you don't use pure functional programming, etc, though.