scala-pet-store VS pfps-shopping-cart

In addition to the great work from Gabriel Volpe, there's the Scala Pet Store and a to-do app.

Hello, you can try to look for pet store implementations on GitHub using Scala, like https://github.com/pauljamescleary/scala-pet-store. The "Pet Store" is usually an example repo demonstrating how to build a CRUD service. Since Scala is a language capable of expressing multiple design techniques, multiple ways of solving similar problems exist, which is neither good nor bad, just irritating for a beginner.

- 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

Gabriel Volpe has a book that goes over just that using the typelevel stack. I highly recommend it: https://leanpub.com/pfp-scala

The only issue I had was how to put all this knowledge together. For that I bought Practical FP in scala by Gabriel Vlope, it's not for beginners, tho but takes you through a project with the latest typelevel stack. Here's the link. https://leanpub.com/pfp-scala.

This is a really good book https://leanpub.com/pfp-scala

If you want a solid understanding of FP and not just FP in Scala, I highly recommend installing GHCup and working through Haskell Programming From First Principles. Then I would work through Scala With Cats, Essential Effects, and Practical FP in Scala for how all of that maps onto Scala.

Practical FP in Scala

BTW for learning good application structure with Tagless Final I really recommend the book Practical FP in Scala and its work-along example application. That's where I stole the pattern above from.