The new AWS SDK for Kotlin was announced at AWS re:Invent in December 2021. Using the SDK, you can build Kotlin applications that work with Amazon S3, Amazon EC2, DynamoDB, and more. The SDK is currently in preview and is expected to become stable soon. The SDK was designed from the ground up to …

In this post, I’m going to walk you through my solution to the Advent of Code 2021 Day 1 task. Of course, I used Kotlin to solve it!  https://www.youtube.com/embed/76IzmtOyiHw The input for the task is a text file, where each line is a number that represents a measurement of the depth o…

Grouping and counting the characters in strings and collections is a very typical task given in coding interviews. Usually, the solutions for such tasks are quite simple. In this blog post, we learn about a few useful functions in Kotlin that make set operations really simple. The task: custo…

Kotlin was designed to be very similar to Java to make migration as smooth as possible. However, Kotlin was also designed to improve the developers' experience by providing a more expressive syntax and a more sophisticated type system. To take full advantage of the language and write more concise co…

Kotlin Coroutines 1.5.0 delivers GlobalScope that is now marked as a delicate API, extensions for JUnit, the refined Channel API, and stabilized reactive integrations.

Expedia adopted Kotlin because of its null-safety compiler guarantees, the conciseness of the language, and its full Java interoperability. Interoperability with Java made a gradual Kotlin integration possible without having to fully rewrite applications.

GitLive uses Kotlin Multiplatform to share code between IDE plugins (for all JetBrains IDEs and VSCode), as well as soon-to-be-released mobile applications for iOS and Android. A team of 5 working on the project have written over 12k lines of Kotlin code as a shared library used by 4 different platf…

It is quite common to use existing frameworks and libraries for backend application development. If we look at most of the popular frameworks in the Java ecosystem, many of them actually support Kotlin out of the box. There are a lot of Java libraries too. You can use these frameworks and libraries …

Kotlin was created as an alternative to Java, meaning that its application area within the JVM ecosystem was meant to be the same as Java’s. Obviously, this includes server-side development. We would love to hear about your experience with Kotlin for developing server-side applications and share …

We’re pleased to announce the release of version 1.4.0 of the Kotlin Coroutines library. The highlights of the release are StateFlow and SharedFlow, which are being promoted to stable API. StateFlow and SharedFlow are designed to be used in cases where state management is required in an asynchronous execution context with Kotlin Coroutines.

In the previous blog post, we learned about snapshot dependencies and how they can be applied to create build chains in TeamCity. In this blog post, we describe how snapshot dependencies enable parallel builds. More snapshot dependencies Previously, we started creating the build chain for the demo a…

In TeamCity, when we need to build something, we create a build configuration. A build configuration consists of the build steps and is executed in one run on the build agent. You can define as many build steps as you like in one build configuration. However, if the number of steps grows too large, …