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The com-lihaoyi Scala Platform 🇸🇬

The com-lihaoyi platform lets you write Scala in an easy and productive way while delivering real business value. It provides all the core building blocks a typical software engineer needs day to day: HTTP clients and servers, JSON/binary data serialization, filesystem operations, CLI argument parsing, build tooling, etc. These can be combined in a variety of ways to perform many useful real-world tasks:

The com-lihaoyi organization maintains an ongoing issue bounty program, paying out 100s to 1000s of USD for the completion of various issues. See the up-to-date listing here:

The com-lihaoyi projects are all open source, but if you want to learn more about writing Scala in the easy and productive way, you check out the following book:

Hands-on Scala Programming also comes with over 150 worked examples that demonstrate how to use Scala with the com-lihaoyi projects in a wide variety of real scenarios:

These examples are free to browse online, and are a great way to kickstart your next application, project or business using the Scala programming language.

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  1. cask cask Public

    Cask: a Scala HTTP micro-framework. Cask makes it easy to set up a website, backend server, or REST API using Scala

    Scala 547 62

  2. scalasql scalasql Public

    Scala ORM to query SQL databases from Scala via concise, type-safe, and familiar case classes and collection operations. Connects to Postgres, MySql, H2, and Sqlite out of the box

    Scala 203 28

  3. Ammonite Ammonite Public

    Scala Scripting

    Scala 2.6k 371

  4. mill mill Public

    Mill is a fast build tool that supports Java, Scala, Kotlin and many other languages. 2-4x faster than Gradle and 4-10x faster than Maven for common workflows, Mill aims to make your project’s buil…

    Scala 2.3k 373

  5. mainargs mainargs Public

    A small, convenient, dependency-free library for command-line argument parsing in Scala

    Scala 193 23

  6. requests-scala requests-scala Public

    A Scala port of the popular Python Requests HTTP client: flexible, intuitive, and straightforward to use.

    Scala 736 86

Repositories

Showing 10 of 23 repositories
  • mill Public

    Mill is a fast build tool that supports Java, Scala, Kotlin and many other languages. 2-4x faster than Gradle and 4-10x faster than Maven for common workflows, Mill aims to make your project’s build process performant, maintainable, and flexible

    com-lihaoyi/mill’s past year of commit activity
    Scala 2,320 MIT 373 146 53 Updated Feb 6, 2025
  • os-lib Public

    OS-Lib is a simple, flexible, high-performance Scala interface to common OS filesystem and subprocess APIs

    com-lihaoyi/os-lib’s past year of commit activity
    Scala 700 74 9 14 Updated Feb 5, 2025
  • acyclic Public

    Acyclic is a Scala compiler plugin to let you prohibit circular dependencies between files

    com-lihaoyi/acyclic’s past year of commit activity
    Scala 250 MIT 35 9 6 Updated Feb 5, 2025
  • upickle Public

    uPickle: a simple, fast, dependency-free JSON & Binary (MessagePack) serialization library for Scala

    com-lihaoyi/upickle’s past year of commit activity
    Scala 731 MIT 165 14 12 Updated Feb 3, 2025
  • cask Public

    Cask: a Scala HTTP micro-framework. Cask makes it easy to set up a website, backend server, or REST API using Scala

    com-lihaoyi/cask’s past year of commit activity
    Scala 547 62 6 4 Updated Feb 2, 2025
  • scalasql Public

    Scala ORM to query SQL databases from Scala via concise, type-safe, and familiar case classes and collection operations. Connects to Postgres, MySql, H2, and Sqlite out of the box

    com-lihaoyi/scalasql’s past year of commit activity
    Scala 203 28 10 3 Updated Jan 31, 2025
  • Ammonite Public

    Scala Scripting

    com-lihaoyi/Ammonite’s past year of commit activity
    Scala 2,611 MIT 371 128 32 Updated Jan 30, 2025
  • utest Public

    A simple testing framework for Scala

    com-lihaoyi/utest’s past year of commit activity
    Scala 487 MIT 82 29 7 Updated Jan 21, 2025
  • mainargs Public

    A small, convenient, dependency-free library for command-line argument parsing in Scala

    com-lihaoyi/mainargs’s past year of commit activity
    Scala 193 23 11 19 Updated Jan 20, 2025
  • fastparse Public

    Writing Fast Parsers Fast in Scala

    com-lihaoyi/fastparse’s past year of commit activity
    Scala 1,101 MIT 164 16 5 Updated Jan 14, 2025

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