47 Degrees

Arrow 1.1.4 & 1.1.5 is now available

Arrow 1.1.4 & 1.1.5 is now available

Debugging Scala 3 in VSCode

Debugging Scala 3 in VSCode

ScalaCon 2022 presentation videos are now available

ScalaCon 2022 presentation videos are now available

Environment Configuration in Kotlin

Environment Configuration in Kotlin

2023 brings a new name for 47 Degrees

2023 brings a new name for 47 Degrees

Getting started with Scala.js, Laminar and ScalablyTyped | Let’s talk about Scala 3

Getting started with Scala.js, Laminar and ScalablyTyped | Let's talk about Scala 3

Kotest Arrow extensions 1.3.0 is now available

Kotest Arrow extensions 1.3.0 is now available

Database migrations with SQLDelight and Flyway

Database migrations with SQLDelight and Flyway

Tools and tips for visualizing Kafka messages

Tools and tips for visualizing Kafka messages

Functional Programming Ideas for the Curious Kotliner

Functional Programming Ideas for the Curious Kotliner

Learn Functional Programming with the 47 Degrees Academy

Learn Functional Programming with the 47 Degrees Academy

Arrow 1.1.3 is now available

Arrow 1.1.3 is now available

New Arrow Optics copy makes data transformation easier

New Arrow Optics copy makes data transformation easier

Special ScalaCon kick-off event in London with Martin Odersky

Special ScalaCon kick-off event in London with Martin Odersky

How Edge Computing is Addressing Business Data Challenges

How Edge Computing is Addressing Business Data Challenges

47 Degrees joins forces with Xebia, a global I.T. consultancy

47 Degrees joins forces with Xebia, a global I.T. consultancy

SuspendApp: A New Arrow Library

SuspendApp: A New Arrow Library

Immutable Data: Your Next Superpower | Let’s talk about Scala 3

Immutable Data: Your Next Superpower | Let's talk about Scala 3

Enterprise Search: Comparing Elasticsearch and OpenSearch

Enterprise Search: Comparing Elasticsearch and OpenSearch

The evolution of threat modeling as a DevSecOps practice | DevSecOps News

The evolution of threat modeling as a DevSecOps practice | DevSecOps News

The problem with DevSecOps . . . a tale of Dragons, Fires, and Buses

The problem with DevSecOps . . . a tale of Dragons, Fires, and Buses

Getting Started with Scala.js and Vite | Let’s talk about Scala 3

Getting Started with Scala.js and Vite | Let's talk about Scala 3

How to save time and money by testing Spark locally

How to save time and money by testing Spark locally

Arrow put on a big show at Kotlin Dev Day

Arrow put on a big show at Kotlin Dev Day

DevSecOps Is a Culture Issue | DevSecOps News

DevSecOps Is a Culture Issue | DevSecOps News

Comparing energy consumption in Scala projects

Comparing energy consumption in Scala projects

5 ways DevSecOps can improve your cybersecurity strategy

5 ways DevSecOps can improve your cybersecurity strategy

Rushed implementations proving problematic for Big Data

Rushed implementations proving problematic for Big Data

The security challenge in DevOps | DevSecOps News

The security challenge in DevOps | DevSecOps News

Rapid implementation of two-factor authentication to reduce fraud

Rapid implementation of two-factor authentication to reduce fraud

Arrow 1.1.0 is now available

Arrow 1.1.0 is now available

7 DevSecOps tools that will save you time and money | DevSecOps News

7 DevSecOps tools that will save you time and money | DevSecOps News

Work with us at 47 Degrees

Work with us at 47 Degrees

Using Kafka Streams to reduce operational costs

Using Kafka Streams to reduce operational costs

DevSecOps Makes Cybersecurity More Agile | DevSecOps News

DevSecOps Makes Cybersecurity More Agile | DevSecOps News

Improving ROI by Incorporating DevSecOps Best Practices

Improving ROI by Incorporating DevSecOps Best Practices

Announcing sbt-energymonitor

Announcing sbt-energymonitor

Continuations in Scala 3

Continuations in Scala 3

Program Entry Points | Let’s talk about Scala 3

Program Entry Points | Let's talk about Scala 3

Using Scala 3 with Spark

Using Scala 3 with Spark

Announcing Arrow Analysis - a Kotlin compiler plug-in

Announcing Arrow Analysis - a Kotlin compiler plug-in

New releases for SwiftHTML, Rust, and more FP news | Lambda World News

New releases for SwiftHTML, Rust, and more FP news | Lambda World News

New releases for Rust, Metals, and more FP news | Lambda World News

New releases for Rust, Metals, and more FP news | Lambda World News

New releases for Scala Native, http4k, and more FP news | Lambda World News

New releases for Scala Native, http4k, and more FP news | Lambda World News

Smart constructors for case classes

Smart constructors for case classes

Top 10 Functional Programming Posts from 2021

Top 10 Functional Programming Posts from 2021

New releases for Swift Playgrounds, Kotlin, and more FP news | Lambda World News

New releases for Swift Playgrounds, Kotlin, and more FP news | Lambda World News

New versons of the IntelliJ Rust plugin, Kubernetes, and more FP news | Lambda World News

New versons of the IntelliJ Rust plugin, Kubernetes, and more FP news | Lambda World News

Unexpected Generated Data: A Common Situation with ScalaCheck

Unexpected Generated Data: A Common Situation with ScalaCheck

New versons of Elixir, Rust, and more FP news | Lambda World News

New versons of Elixir, Rust, and more FP news | Lambda World News

Effects and Contexts in Kotlin

Effects and Contexts in Kotlin

New updates for Kotlin, Credo, and more FP news | Lambda World News

New updates for Kotlin, Credo, and more FP news | Lambda World News

Pitfalls of Mocking in tests

Pitfalls of Mocking in tests

Team Building with an Internal Podcast

Team Building with an Internal Podcast

Channels and Home Manager | Nix Series

Channels and Home Manager | Nix Series

Updates for Gradle, frameless, and more FP news | Lambda World News

Updates for Gradle, frameless, and more FP news | Lambda World News

The State of Haskell Survey, Metals, and more FP news | Lambda World News

The State of Haskell Survey, Metals, and more FP news | Lambda World News

New versions of GHC, Metals, and more FP news | Lambda World News

New versions of GHC, Metals, and more FP news | Lambda World News

Run a fs2-kafka stream with scala-cli and Scala 3

Run a fs2-kafka stream with scala-cli and Scala 3

New releases for Scala, Rust, and more FP news | Lambda World News

New releases for Scala, Rust, and more FP news | Lambda World News

Using sbt Server for a faster development workflow | Let’s talk about Scala 3

Using sbt Server for a faster development workflow | Let's talk about Scala 3

Introduction to nix env and nix shell | Nix Series

Introduction to nix env and nix shell | Nix Series

New Clio version, a Kotlin preview release and more FP news | Lambda World News

New Clio version, a Kotlin preview release and more FP news | Lambda World News

Updates for Phoenix, OCaml, and more FP news | Lambda World News

Updates for Phoenix, OCaml, and more FP news | Lambda World News

Updates for kotlinx.serialization, Jetpack Compose, and more FP news | Lambda World News

Updates for kotlinx.serialization, Jetpack Compose, and more FP news | Lambda World News

New releases for Swift, Arrow, and more FP news | Lambda World News

New releases for Swift, Arrow, and more FP news | Lambda World News

Updates for IntelliJ IDEA, Metals, and more FP news | Lambda World News

Updates for IntelliJ IDEA, Metals, and more FP news | Lambda World News

Arrow 1.0 is now available

Arrow 1.0 is now available

Updates for Swift, Scala, and more FP news | Lambda World News

Updates for Swift, Scala, and more FP news | Lambda World News

Lambda World News | Functional Programming Headlines for the week of September 7th, 2021

Lambda World News | Functional Programming Headlines for the week of September 7th, 2021

An introduction to Scala Native | Let’s talk about Scala 3

An introduction to Scala Native | Let's talk about Scala 3

47 Degrees expands to South America with new office in Colombia

47 Degrees expands to South America with new office in Colombia

Lambda World News | Functional Programming Headlines for the week of August 30th, 2021

Lambda World News | Functional Programming Headlines for the week of August 30th, 2021

Lambda World News | Functional Programming Headlines for the week of August 23rd, 2021

Lambda World News | Functional Programming Headlines for the week of August 23rd, 2021

Lambda World News | Functional Programming Headlines for the week of August 16th, 2021

Lambda World News | Functional Programming Headlines for the week of August 16th, 2021

Lambda World News | Functional Programming Headlines for the week of August 9th, 2021

Lambda World News | Functional Programming Headlines for the week of August 9th, 2021

Getting started with Metals IDE | Let’s talk about Scala 3

Getting started with Metals IDE | Let's talk about Scala 3

What is F[_] in Scala?

What is F[_] in Scala?

Lambda World News | Functional Programming Headlines for the week of August 2nd, 2021

Lambda World News | Functional Programming Headlines for the week of August 2nd, 2021

Lambda World News | Functional Programming Headlines for the week of July 26th, 2021

Updates and other news from the Functional Programming community.

Lambda World News | Functional Programming Headlines for the week of July 19th, 2021

Updates and other news from the Functional Programming community.

Metaprogramming in Scala 3: Inline | Let’s talk about Scala 3

An introduction to the inline modifier in Scala 3

Lambda World News | Functional Programming Headlines for the week of July 12th, 2021

New Kotlin branding, a beta release for GoLand 2021.2, and other news and updates from the Functional Programming community.

Lambda World News | Functional Programming Headlines for the week of July 5th, 2021

Updates and other news from the Functional Programming community.

Ammonite Ecosystem | Let’s talk about Scala 3

Scala scripting with the Ammonite Ecosystem.

Lambda World News | Functional Programming Headlines for the week of June 28th, 2021

New versions of Kotlin and Rust, and other news and updates from the Functional Programming community.

Lambda World News | Functional Programming Headlines for the week of June 21st, 2021

Updates for Kotlin and the Haskell Language Server, and other news from the Functional Programming community.

Exploring Coursier’s Functionality Resolving Artifacts | Let’s talk about Scala 3

Eric Loots shows us how to use Coursier to resolve library artifacts in Scala 3.

Lambda World News | Functional Programming Headlines for the week of June 14th, 2021

Updates for ghc, Scala, and concurrency support has been added for Swift.

Three Reasons to Learn Haskell

Here are a few reasons why you might want to consider learning the Haskell programming language.

Lambda World News | Functional Programming Headlines for the week of June 7th, 2021

Updates for sbt, Compose for Desktop, and other news and updates from the Functional Programming community.

The road to Scala 3 using scala3-migrate | Let’s talk about Scala 3

In this episode of Let’s talk about Scala 3, Meriam Lachkar shows us how to migrate a project from Scala 2 to 3 using scala3-migrate.

Using parsers in practice

Our journey into developing a small language using ANTLR and parser combinators.

Lambda World News | Functional Programming Headlines for the week of June 1st, 2021

Akka gRPC 2.0.0 arrives, updated plugins, and other news and updates from the Functional Programming community.

Scalabase Conference

Scalabase is a conference for developers in the early stages of their Scala journey

Lambda World News | Functional Programming Headlines for the week of May 24th, 2021

A new version of Elixir was released, and other news and updates from the Functional Programming community.

Giving Back | The Morgan Stanley Team

In this ScalaCon keynote, learn about key features of Morgan Stanley's platform, and their local volunteering efforts.

Scala’s future as seen by VirtusLab’s Scala 3 team | Paweł Dolega and Krzysztof Romanowski

In this ScalaCon keynote, the VirtusLab team gives a sneak peek of what is coming.

How to read complex code | Felienne Hermans

In this ScalaCon keynote, Felienne Hermans demonstrates theories for reading code.

Scala 3 has landed | Martin Odersky

In his ScalaCon keynote, gives a background and insight into the new language release, Scala 3.

Lambda World News | Functional Programming Headlines for the week of May 17th, 2021

The arrival of Scala 3, a new version of Erlang, and other news and updates from the Functional Programming community.

Automatically Deriving Typeclass Instances in Scala 3

Have the compiler write the code for you with this one weird trick

Lambda World News | Functional Programming Headlines for the week of May 10th, 2021

New releases for Kotlin and Rust, and other news and updates from the Functional Programming community.

Recommended Versioning Scheme | Let’s talk about Scala 3

In this episode of Let's talk about Scala 3, Julien Richard-Foy shows us how to transition to a more reliable ecosystem.

Typeclasses in Scala 3

Implementing Typeclasses in Scala 3

Backend testing taxonomy - Scopes and Techniques

A teaser and high-level overview on backend testing in a layered restful application with Spring in Kotlin.

Lambda World News | Functional Programming Headlines for the week of May 3rd, 2021

A new version of Swift, a patch release for sbt, and other news and updates from the Functional Programming community.

Lambda World News | Functional Programming Headlines for the week of April 26th, 2021

New release candidates for Scala and Erlang's OTP, as well as other news and the most interesting ideas from the Functional Programming community.

Enumerations in Scala 3

A look at the new enum keyword in Scala 3

FP Refactoring Recursion | Haskell Tips

In episode two of Haskell Tips, Flavio Corpa solves a kata from CodeWars with Haskell and recursion.

Database Persistence in Kotlin

Database Persistence in Kotlin. A comparison between SqlDelight and Exposed.

Lambda World News | Functional Programming Headlines for the week of April 19th, 2021

New release candidates for Kotlin and Scala, as well as other news and the most interesting ideas from the Functional Programming community.

Functional Domain Modeling in Kotlin - Validation

Learn how to leverage Functional Domain Modeling to fully utilize the Kotlin type system and prevent bugs.

Arrow 0.12.0 & 0.13.1 is now available

Arrow 0.12.0 & 0.13.1 is now available, featuring streamlining of the library for 1.0.0.

Lambda World News | Functional Programming Headlines for the week of March 29th, 2021

New updates for Elixir, a new Scala 3 migrate tool, and other news and the most interesting ideas from the Functional Programming community.

Lambda World News | Functional Programming Headlines for the week of March 15th, 2021

New updates, news, and the most interesting ideas from the Functional Programming community.

Functional Programming updates for the week of March 8th, 2021 | Lambda World News

Lambda World News brings you the latest updates and the most interesting ideas from the Functional Programming community. Here's what's happening the week of March 8th, 2021.

Lambda World News | Functional Programming Headlines for the week of March 1st, 2021

New updates for Kotlin, Scala, and other news and the most interesting ideas from the Functional Programming community.

Getting to Know ScalaCon | Lambda World News

Lambda World News brings you the latest updates and the most interesting ideas from the Functional Programming community. Here's what's happening the week of February 22nd, 2021.

Functional Programming Updates | February 15th, 2021

Lambda World News brings you the latest updates and the most interesting ideas from the Functional Programming community. Here's what's happening the week of February 15th, 2021.

Functional Domain Modeling in Kotlin

Learn how to leverage Functional Domain Modeling to fully utilize the Kotlin type system and prevent bugs.

Lambda calculus through JavaScript, part 5

Learn lambda calculus fundamentals using the most deployed language in the world, Javascript.

Lambda World News | Functional Programming Headlines for the week of February 8th, 2021

New updates for Haskell, Swift, and other news and the most interesting ideas from the Functional Programming community.

sbt-microsites v1.3.2

Announcing the release of sbt-microsites v1.3.2

Functional Programming Updates | February 1st, 2021

Lambda World News brings you the latest updates and the most interesting ideas from the Functional Programming community. Here's what's happening the week of February 1st, 2021.

Lambda calculus through JavaScript, part 4

Learn lambda calculus fundamentals using the most deployed language in the world, JavaScript.

Lambda World News | Functional Programming Headlines

The latest news and the most interesting ideas from the Functional Programming community.

Functional Programming Updates | January 20th, 2021

lambda World News brings you the latest updates and the most interesting ideas from the Functional Programming community. Here's what's happening the week of January 20th, 2021.

Higher-kinded data in Scala

A trick to make your models more DRY without sacrificing type safety.

Lambda calculus through JavaScript, part 3

Learn lambda calculus fundamentals using the most deployed language in the world, JavaScript.

Unions in GraphQL with Mu-Haskell 0.5

GraphQL's support in Mu-Haskell has been updated to 0.5! Mu-Haskell is a framework for building microservices using type-level techniques, with support for gRPC, GraphQL, and OpenAPI/REST.

Lambda World News | Functional Programming Headlines

The latest news and the most interesting ideas from the Functional Programming community.

Lambda calculus through JavaScript, part 2

Learn lambda calculus fundamentals using the most deployed language in the world, Javascript.

A Happy Holidays Project - Community Edition

Instead of a festive party, we've asked our team to take the money we would've spent on company festivities and inject it back into our local communities.

47 Degrees announces official sponsorship of the Cádiz CF Femenino

47 Degrees is thrilled to announce our premium sponsorship of the Cádiz CF Femenino team for the 2020-21 season.

Top 10 Functional Programming Posts from 2020

The top 10 functional programming posts of 2020 from 47 Degrees.

Lambda calculus through JavaScript, part 1

Learn lambda calculus fundamentals using the most deployed language in the world

Lambda World News | Functional Programming Headlines

The latest news and the most interesting ideas from the Functional Programming community.

A purely functional full-stack web app

mu-graphql-example-elm is an example app made by 47 Degrees that features type-safe communication via GraphQL schemas that ensures that both the frontend and the backend are always aligned.

Swift for TensorFlow: Training your first model

Learn how you can train a Machine Learning model and start making predictions with Swift for TensorFlow.

Repeating suspended effects in Kotlin

Learn how to repeat any suspended effects in Kotlin using the power of repeat and the Schedule data type from Arrow Fx Coroutines.

Swift for TensorFlow: Describing your model

Learn how you can describe a simple Neural Network using Swift for TensorFlow.

Swift for TensorFlow: Reading your dataset

Learn how to read the examples in your dataset for training and testing using Swift for TensorFlow.

Lambda World News | Functional Programming Headlines

The latest news and the most interesting ideas from the Functional Programming community.

Skills Matter and 47 Degrees announce partnership

We're pleased to announce a new consulting and training partnership with Skills Matter focused on expertise in Functional Programming and application modernization.

Swift for TensorFlow: Choosing your dataset

Learn how you pick a dataset and prepare it to be loaded using Swift for TensorFlow.

Getting started with Swift for TensorFlow

Learn how you can set up your tools to use Swift and TensorFlow.

Lambda World News | Episode 1

The latest news and the most interesting ideas from the Functional Programming community.

Technology Radar Promotes Arrow to ‘Adopt’

Arrow has been promoted as the functional companion for Kotlin's standard library.

Swift KeyPaths under a different optic

KeyPaths are widely used in Swift, and have their grounds in a powerful FP concept: optics.

Mu-Haskell 0.4: OpenAPI and Instrumentation

Mu-Haskell 0.4 is now released! Mu-Haskell is a framework for building microservices using type-level techniques, with support for gRPC, GraphQL, and OpenAPI/REST.

A (very short) intro to optics

What are optics and what kinds of them are out there.

Your iOS Home Screen is a Monoid - Part 2

You can find examples of algebraic structures, like Monoids, in everyday situations!

Your iOS Home Screen is a Monoid - Part 1

You can find examples of algebraic structures, like Monoids, in everyday situations!

Dependent and refinement types: why?

Why are dependent and refinement types useful?

Arrow 0.11.0 is now available

Arrow 0.11.0 is now available, featuring bug fixes and new features.

Why Learning Kotlin is a Must for Android Developers

When it comes to the Android platform, knowing Kotlin is essential

ValidatedNel in the Wild: Exploring error accumulation in an sbt plugin

Using an open-source PR as a guide, show how you can rewrite error handling in an sbt plugin by using the ValidatedNel Cats datatype

What is Haskell, and Who Should Use It?

A quick look at the functional programming language Haskell.

Announcing Bow Lite 0.1

Bow Lite 0.1 is now available as a Swift Package!

47 Days at 47 Degrees

Reflections on my first month and a half as a senior software engineer at 47 Degrees

nef Playgrounds for iPad 1.1 is now available

Get nef Playgrounds for iPad 1.1 now! Code on your iPad with your favorite Swift Packages!

Describing Microservices using Modern Haskell

An experience report describing the challenges developing Mu in Haskell has been accepted in Haskell Symposium 🎉

Five Reasons You Should Learn Functional Programming

Let’s take a look at some reasons why you might want to consider learning Functional Programming.

The power of IO in Haskell

How to use the many libraries the Haskell ecosystem provides for IO actions.

Welcome to the 47 Degrees Academy

The Academy is an immersive experience featuring in-depth instructor-led courses with hands-on exercises, webinars, talks, and special events.

Announcing nef Playgrounds for iPad 1.0

nef Playgrounds for iPad 1.0 is now available! Code on your iPad with your favorite Swift Packages!

Introducing Bow Arch 0.1.0

Bow Arch 0.1.0 is now released! Bow Arch is a library for building Functional Architectures in Swift.

Bow OpenAPI 0.2.0 is now available

Bow OpenAPI 0.2.0 is now available! It generates a Swift network client based on your OpenAPI specification.

nef 0.6 is now available

nef 0.6 is now available: nef ♡ FP

Mu-Scala 0.22: Distributed tracing

Mu-Scala 0.22 is now available. Mu-Scala is a suite of libraries and tools for building microservices in a functional style.

Working from Home During Quarantine

Tips to help you work more effectively from home during the global COVID-19 health crisis

Mu-Haskell 0.3: GraphQL and a simplified API

Mu-Haskell 0.3 is now released! Mu-Haskell is a framework for building microservices using type-level techniques, with support for gRPC and GraphQL.

Bow 0.8.0 is now available

Bow 0.8.0 is now released! Bow is a functional companion to Swift Foundation.

Open Source Projects You Can Help With to Fight the Coronavirus Pandemic

A list of projects that could use your help in the fight against coronavirus.

Arrow 0.10.5 is now available

Arrow 0.10.5 is now available. This is the last planned release for the `0.10.x` series and includes many bug fixes and a few new features

Introducing Hood and sbt-hood

Hood and sbt-hood are now available, allowing you to integrate JMH benchmarks with your CI flow within both sbt and Gradle.

What To Do With Your Kids While You’re Working From Home

Suggestions for things to keep your kids occupied while you work from home during the global COVID-19 health crisis

IO integration with kotlinx.coroutines

Showcasing the new Arrow integration module for KotlinX Coroutines

Introducing memeid: An RFC-compliant library for working with UUIDs

Learn about memeid, a JVM libary for generating UUIDs according to the RFC specification.

Mu-Haskell 0.2: Avro and optics

Mu-Haskell 0.2 is now released! Mu-Haskell is a framework for building microservices using type-level techniques, now with support for both Protocol Buffers and Avro.

Introducing Bow OpenAPI 0.1.0

Bow OpenAPI 0.1.0 is now available! It generates a Swift network client based on your OpenAPI specification.

Introducing Mu-Haskell v0.1

Mu-Haskell 0.1.0 is now released! Mu-Haskell is a framework for building microservices using type-level techniques.

Recursion schemes fundumentals

Learn about recursion schemes and how to use them with the Skeuomorph open source library.

Scala Days 2020 Call for Papers Now Open

Submit your Scala talk to our CFP! Scala Days 2020 takes place in Seattle, Washington May 18-22, and in Berlin, Germany July 1-3.

New Arrow website launches

A new website for the Arrow family of libraries just launched, showcasing the many benefits of this open source compilation for implementing functional programming in Kotlin.

Bow 0.7.0 is now available

Bow 0.7.0 is now released! Bow is a functional companion to Swift Foundation.

Conway’s Game of Life: Scala Edition with Zippers

Our solution to Conway's Game of Life using Functional Programming in Scala

Conway’s Game of Life using Kotlin and Arrow

A solution to Conway's Game of Life using Functional Programming in Kotlin

nef 0.5.0 is now available

nef 0.5.0 is now available: Get your favorite dependencies with Swift Playgrounds on iPad!

KotlinConf 2019: Learn about Arrow Meta with 47 Degrees

47 Degrees is in Copenhagen as a sponsor of KotlinConf this December 4th through the 6th, 2019. Stop by our booth to learn about Arrow Meta, KEEP-87, and grab some Arrow swag.

sbt-microsites 1.0 Released

Site under maintenance

Conway’s Game of Life using Haskell and Gloss

Our solution to Conway's Game of Life using Functional Programming in Haskell

nef v0.4.0 is now available

nef v0.4.0 is now available. Carthage support, new Playground container, nef as a library, and more.

Conway’s Game of Life using Bow and SwiftUI

Our solution to Conway's Game of Life using Functional Programming in Swift

Arrow v0.10.3 is now available

Arrow v0.10.3 is now released. Arrow is an open source library acting as a functional companion to Kotlin's Standard Library.

Our polyglot take on the Global Day of Coderetreat

Take the challenge of implementing Conway's Game of Life using FP in Swift, Kotlin, Scala or Haskell!

Setting up a Haskell environment

How to set up a working Haskell environment using Stack, HLint, and Visual Studio Code or IntelliJ as an editor.

Arrow v0.10.2 is now available

Arrow v0.10.2 is now released. Arrow is an open source library acting as a functional companion to Kotlin's Standard Library.

Arrow v0.10.2 is now available

Arrow v0.10.2 is now released. Arrow is an open source library acting as a functional companion to Kotlin's Standard Library.

nef Xcode extension

nef Xcode extension released!

Bow 0.6.0 is now available

Bow 0.6.0 is now released! Bow is a functional companion to Swift Foundation.

Talking Scala with Bill Venners

Bill Venners speaks with host Oli Makhasoeva about the Unison programming language on her podcast Scala Love.

Mu in the cloud

Integration of Mu with devops technologies like Docker, Kubernetes and Google Cloud.

Unison Love with Rúnar Bjarnason

Rúnar Bjarnason speaks with host Oli Makhasoeva about the Unison programming language on her podcast Scala Love.

Helios v0.2.0 is now available

Helios v0.2.0 is now available. Helios is a purely functional JSON library for Kotlin built on Arrow.

Bow 0.5.0 is now available

Bow 0.5.0 is now released! Bow is a functional companion to Swift Foundation.

nef v0.3.0 is now available

nef 0.3.0 is released! nef is a set of command-line tools for improving documentation using Xcode Playgrounds.

Introducing Helios for Kotlin

{Helios} is a purely functional JSON library for Kotlin built on Arrow

Come see us at the 10th Anniversary of Scala Days in Lausanne!

47 Degrees is proud to be a Gold Sponsor of the 10th Anniversary of Scala Days in Lausanne, Switzerland this June 11th-13th.

Code instrumentation in Mu-RPC

Metrics are an essential part of a backend application but are often overlooked. This is especially true for architectures involving a mass of microservices distributed in the cloud, where inherently, many points of failure can be found. This is where metrics can offer invaluable insight into what goes on inside distributed cloud services, especially when they run under extreme situations.

Mu v0.18.3 is now available

Mu v0.18.3 is now available. Mu is a purely functional library for building microservices.

nef v0.2.0 is now available

nef 0.2.0 is released! nef is a set of command-line tools for improving documentation using Swift Playgrounds.

Bow 0.4.0 is now available

Bow 0.4.0 is now released! Bow is a functional companion to Swift Foundation.

47 Degrees is proud to sponsor the Typelevel Sustainability Program

47 Degrees is proud to support the Typelevel Sustainability Program as a founding sponsor.

Mu v0.18.0 is now available

Mu v0.18.0 is now available. Mu is a purely functional library for building microservices.

Arrow Playground is now available

Arrow Playground is now available. Now you can embed Arrow code snippets wherever you want!

Introducing nef for Swift projects

nef 0.1.0 is released! nef is a set of command-line tools for improving documentation!

Mu-RPC: securing communications

Mu is a purely functional library for building microservices.

Using Fetch for optimizing GraphQL query execution

Learn how to use the Fetch library for optimizing the execution of a GraphQL query.

Arrow v0.9.0 is now available

Arrow v0.9.0 is now released. Arrow is an open source library acting as a functional companion to Kotlin's Standard Library.

Using Fetch for optimizing requests to the GitHub API

See how we use Fetch for optimizing requests to GitHub when building our open source site.

Fetch v1.0.0 released

Fetch v1.0.0 is now available and is a major redesign of the library in terms of cats-effect abstractions.

Mu-RPC: defining messages and services

Learn to define messages and services with Mu, a purely functional library for building microservices.

Scala Love - New Podcast Launching Soon

A new podcast celebrating the Scala community is set to premiere on Valentine's Day Scala Love is hosted by Oli Makhasoeva.

Lambda World Cádiz Call for Papers Now Open

Lamda World 2019 is one of the largest Functional Programing events in Southwestern Europe. It takes place October 17th - 18th in Cádiz, Spain.

The Traverse Typeclass: Use cases in Kotlin with Arrow

Dive deep into use cases of the Traverse Typeclass used in Arrow for Kotlin.

Introducing Mu: A purely functional library for building microservices

Mu is a purely functional library for building microservices.

sbt-microsites v0.8.0 released

We're pleased to announce the release of sbt-microsites v0.8.0, now with support for mdoc.

Introducing Bow - Functional Programming for Swift

Bow 0.3.0 is now released! Bow is a functional companion to Swift Foundation.

Arrow v0.8.2 released

Arrow v0.8.12 is now available. Arrow is an open source library acting as a functional companion to Kotlin's Standard Library.

47 Degrees expands to Madrid and more in 2018

As we reach the close of yet another year, we’d like to take a moment to reflect on 2018 and provide a brief glimpse of what 2019 holds for 47 Degrees.

Exploring Android Material Components

Exploring Google's latest Material Design Guidelines and using the Material Components library for theming your widgets for Android.

Arrow v0.8.1 released

Arrow v0.8.1 is now available. Arrow is an open source library acting as a functional companion to Kotlin's Standard Library.

Arrow v0.8.0 now available

Arrow v0.8.0 is now released! Arrow is a functional companion to Kotlin's Standard Library.

We’re in Amsterdam for KotlinConf 2018

47 Degrees is in Amsterdam as a sponsor of KotlinConf this October 3rd through the 5th, 2018.

Fetch version 1.0.0-RC1 Released

After a major rehaul of the core of the Fetch library, we're happy to announce the release of v1.0.0-RC1.

Arrow v0.7.3 released

Arrow v0.7.3 is now available! Arrow is a functional companion to Kotlin's Standard Library.

Freestyle-rpc’s biggest release yet is now available

Freestyle-rpc v0.14.0 is now available. Freestyle RPC is a purely functional library for building RPC endpoint based services with support for RPC and HTTP2.

Grants for Underrepresented in Tech for Lambda World Seattle and Cádiz

47 Degrees along with our Financial Aid Sponsors are happy to offer grants for Underrepresented in Tech to attend Lambda World Seattle or Cádiz.

Arrow v0.7.2

Arrow v0.7.2 is now available! Arrow is a functional companion to Kotlin's Standard Library.

Arrow v0.7.0 release now available

Arrow v0.7.0 is now available! Arrow is a functional companion to Kotlin's Standard Library.

The Science Behind Functional Programming

A brief overview of the categories that are behind some computation patterns. Kotlin is used to show code examples, leveraging all cool features provided by Arrow.

A Journey Toward Real-time Insight Generation and Decision Automation

An overview of how to migrate out of unreliable ETL and slow batch processing in SQL and Excel.