Learn Kotlin On the Backend
Looking for a place dedicated to Kotlin on the backend? You came to the right place 🙂
Spring Framework, Ktor, Http4K, Micronaut, and many, many more.

Spring for GraphQL with Kotlin Coroutines
In this tutorial, we will learn how to expose GraphQL APIs using Spring for GraphQL and Kotlin coroutines.

A Quick Guide to htmx in Kotlin
In this tutorial, we will learn the most important htmx concepts and create a basic application with Kotlin HTML DSL and Tailwind CSS.

Auto-reload in Ktor
In this, short quide, I will show you how to enable the development mode and auto-reload feature in Ktor application.

MockK with Coroutines [5/5]
In the last article in a series, we are going to learn everything we need to know to work with MockK and Kotlin coroutines.
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About Me
Hello and welcome to Codersee, a place where you can learn Kotlin, Spring Framework (especially Spring Boot), Ktor, Micronaut and other things related to backend development.
My name is Piotr and my mission is to provide you with a practical Kotlin articles, video tutorials, and exercises, which will help you bring your Kotlin & backend knowledge to another level.
Programming does not have to be boring and this is the reason why I focus on practice-oriented, and forward approach.
Moreover, if you are tired of searching various places, blogs, or articles looking for interesting content, updates, and news from the world of Kotlin, then you should definitely check out my free newsletter. Every week, I spent the time on research, so that you don’t have to worry about that anymore.
Thank you for visiting and let’s grow together 🙂