Scala http4s

Open-source Scala projects categorized as http4s

Top 13 Scala http4 Projects

  • tapir

    Declarative, type-safe web endpoints library

    Project mention: Micronaut vs others(Spring Boot, Quarkus and co.) | | 2022-11-10

    Tapir is a Scala framework. (which runs on the JDK) Since the recent release of version 1.0, it's become my go to for many projects. It doens't provide much in the way of integrations with 3rd party frameworks, but I actually prefer that. It does autogenerate great swagger docs though.

  • scala-pet-store

    An implementation of the java pet store using FP techniques in scala

    Project mention: Scala Resurrection | | 2023-01-24

    Hello, you can try to look for pet store implementations on GitHub using Scala, like 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.

  • SonarLint

    Clean code begins in your IDE with SonarLint. Up your coding game and discover issues early. SonarLint is a free plugin that helps you find & fix bugs and security issues from the moment you start writing code. Install from your favorite IDE marketplace today.

  • guardrail

    Principled code generation from OpenAPI specifications

    Project mention: Scala Library To Generate Case Classes for JSON | | 2022-08-16

    You may have some luck with Guardrail

  • pfps-shopping-cart

    :shopping_cart: The Shopping Cart application developed in the book "Practical FP in Scala: A hands-on approach"

    Project mention: Already learned Scala syntax. Should the next book be "SICP" or "Function Programming in Scala"? | | 2023-01-24

    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.

  • todo-http4s-doobie

    A sample project of a microservice using http4s, doobie, and circe.

  • http4s-jwt-auth

    :lock: Opinionated JWT authentication library for Http4s

  • http4s-laminar-stack

    A complete example of a fullstack (I actually don't know what this means) Scala application, using http4s on the backend and Laminar and Scala.js on the frontend

    Project mention: IntelliJ and ScalaJS setup | | 2022-04-01
  • InfluxDB

    Build time-series-based applications quickly and at scale.. InfluxDB is the Time Series Platform where developers build real-time applications for analytics, IoT and cloud-native services. Easy to start, it is available in the cloud or on-premises.

  • http4s-armeria

    Armeria backend for http4s

  • distage-example

    Example project built using distage, tagless final, http4s, doobie and zio

    Project mention: Testimonials about the usage of Izumi BIO typeclasses | | 2022-03-14

    I have been looking at the distage example (, and it looks very promising for writing effectful programs that work both with ZIO and cats-effect as the effect implementation. Although I do wonder if the same can be achieved by defining the APIs in terms of a trifunctor effect, instead of the bifunctor effect type showcased in the example.

  • http4s-micrometer-metrics

    Http4s metrics implementation based on Micrometer

  • iron-cats-example

    An example project using Iron & Cats

  • rad4s

    A set of utilities to speed up rendering, storage, testing, and prototyping, especially for http4s

  • karma-plus-plus

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-01-24.

Scala http4s related posts


What are some of the best open-source http4 projects in Scala? This list will help you:

Project Stars
1 tapir 1,161
2 scala-pet-store 1,002
3 guardrail 484
4 pfps-shopping-cart 440
5 todo-http4s-doobie 170
6 http4s-jwt-auth 96
7 http4s-laminar-stack 53
8 http4s-armeria 53
9 distage-example 43
10 http4s-micrometer-metrics 16
11 iron-cats-example 4
12 rad4s 4
13 karma-plus-plus 0
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