Preview of Kotlin 1.6.20 With Prototype of Context Receivers, Parallel Compilation on JVM, Incremental Compilation in JS, and More The first preview of the 1.6.20 release is out! Introducing Kotlin 1.6.20-M1! This preview includes: Defining context-dependent declarations in Kotlin/JVM with the prototype of context receivers. Faster builds with parallel compilation of a single module in the JVM IR backend. Faster development with incremental compilation in Kotlin/JS IR. Easier code sharing with hierarchical structure of […]

K2 컴파일러로 가는 길 새로운 K2 Kotlin 컴파일러를 개발해온 지도 꽤 오래되었습니다. 새로운 컴파일러는 새로운 언어 기능을 더 빠르게 개발하고 Kotlin이 지원하는 모든 플랫폼을 통합하며 성능을 개선하고 컴파일러 확장을 위한 API를 제공하는 데 목표를 두고 있습니다. Kotlin 컴파일러의 개발은 수년 전에 시작되었으며 그 후로 많은 것이 달라졌습니다. 예를 들어, Kotlin 1.0에는 Kotlin/Native 백엔드와 코루틴이 없었기 때문에 Kotlin 컴파일러 코드에서는 […]

Let's learn how can we flatMap flow with flatMapConcat, flatMapMerge, and flatMapLatest. Another chapter of the Kotlin Coroutines book by @marcinmoskala. 👇 Flattening flow: flatMapConcat, flatMapMerge and flatMapLatest (kt.academy)

A new version of ktlint is available 🎉 https://github.com/pinterest/ktlint/releases/tag/0.44.0

Hi guys! I created a simple Android lib to determine the location of the user https://github.com/KiberneticWorm/locsimple

Hi, would anyone be able to help me build a kotlin wrapper for PouchDb? I created some code using Dukat, but it's a bit messy. Be nice if that could be formalised into a proper wrapper project. Is it correct that once I do that then I can use PouchDb in the common code of a shared Kotlin KMM project?

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Many companies are using microservices these days, but for many smaller companies, the complexity that comes with a distributed system is out of the question. However, one of the primary benefits of microservices, decoupling, can be realized in a monolith. I created the following project to bring some of the advantages of microservices to monoliths. I’ve called it “microlith”. It is my magnum opus of architectures. I’ve invented nothing here, but combined a number of interesting concepts in a way I think is novel. I’ve taken the concepts of Domain Driven Design, Functional Programming, Algebraic Data Types, CQRS, Hexagonal Architecture, Reactive Systems, etc, etc and combined them in an elegant way to create an architecture for backend applications that solves many of the issues that arise from traditional “pancake style” (web tier / services tier / repository tier) architectures. When used properly, this architecture provides better guardrails for “good developer behavior”, as well as providing a framework for moving various business invariants from runtime checks to compile time (thanks to ADTs). Please take a look. I’d love your feedback. https://github.com/edreyer/microlith Oh, and this is 100% kotlin. This architecture is, for all practical purposes, not possible in Java. Update: Thanks for the comments! A clarification: This is a monolith. Internally, the code is structured so that each Bounded Context (DDD) is segregated. Communication between contexts happens internally using some lightweight CQRS-like tooling, but does not use the network (e.g. no Kafka required).

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In case people didn’t know 🙂 🧵

I'm curious that when Kotlin mascot gets own name 🙂

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Made a Perlin Noise Interpolator for Jetpack Compose Animation.

Kotlin: An Illustrated Guide, Chapter 7 is finally ready! This one's about Lambdas and Function References. Hope you enjoy it! https://typealias.com/start/kotlin-lambdas/

Version 0.2.0 of LittleKt has just been released. This includes a bunch of notable changes but the biggest is now supporting Android. Check out the reddit release post here.

Create this Poker Card flipping animation using Jetpack Compose 🙂

We're at 8030 kotlin libraries on MavenCentral after last night's kamp.petuska.dev scan! An increase of 494 since 2022-02-01 (just over a month and a half ago). Apologies for the spam - over and out! :kotlin-intensifies: :kotlin-intensifies-purple:

Hi everyone 👋 . If you're curious about GraphQL, @bod and I are doing an intro workshop to working with GraphQL in Kotlin tomorrow 9am PT. We'll cover the basics of GraphQL and build a small Android app using a GraphQL endpoint.

Kotlin DSL for GitHub Actions workflows is getting more and more mature! Version 0.11.0 is out, with proper docs, ability to define custom attributes/inputs and more. If you use GitHub Actions and don't really like YAML, I encourage you to give it a shot. Any feedback greatly appreciated! https://github.com/krzema12/github-actions-kotlin-dsl/releases/tag/v0.11.0

Hello everyone. We have released Komapper v0.31.0, an ORM library for both JDBC and R2DBC. This version supports kotlinx-datetime. Try it out and let us know how it works for you. https://github.com/komapper/komapper

Open sourced my Spring-Actuator style library for Ktor https://github.com/sksamuel/cohort

Hey everyone, r/place is ongoing and it still doesn't have the Kotlin logo, let's draw it on the new Canvas they opened, I propose at 1200x750 (random coords where there is nothing) this logo (that uses colors from the website) :

https://github.com/JetBrains/kotlin/releases/tag/v1.6.20 Kotlin 1.6.20 released !

Dear Kotliners, We are so glad to inform you about the official release of the Kotlin Coroutines book by @marcinmoskala 🥳 The one and only up-to-date Kotlin Coroutines compendium. More information 👇 Kotlin Coroutines (kt.academy) Get it now on Leanpub 👇 Kotlin Coroutines by Marcin Moskała [Leanpub PDF/iPad/Kindle] We would love to get feedback from you. Have a nice reading 📘

We’ve updated the Kotlin Multiplatform Web-wizard a bit: • simplified source sets hierarchy when it’s possible • updated Kotlin/Gradle/Deps versions • simplified libraries selection UI • cleaning source code and added some cases to unit tests https://terrakok.github.io/kmp-web-wizard/

Released Cohort 1.2.0, a spring-boot actuator style replacement for Ktor. This release adds support for Ktor2. https://github.com/sksamuel/cohort