Transitioning from Java to Kotlin

Course details

If you’re a web developer, you may be considering a switch from Java to Kotlin. Kotlin is probably best well-known as the language for Android development—it’s concise, flexible, and includes a powerful set of modern language features—but it’s also a great choice for JVM-based web development. In this course, Nate Ebel guides you through the transition from Java to Kotlin for server application development. He starts by exploring Kotlin’s place in the JVM ecosystem, then shows you how to migrate an existing Java-based Spring Boot application to Kotlin. He also shows you how to build a new application using Ktor, a Kotlin-based client/server framework. If you’ve wondered what Kotlin’s features can do for your JVM web development, join Nate in this course.

Concepts

Introduction

Move from Java to Kotlin to build your dream application

Java and the JVM Ecosystem

What is Kotlin
Kotlin and other JVM languages
Where is Kotlin used today

Kotlin for Server-Side Applications

Server-side Kotlin frameworks
Try Kotlin
Integrating Kotlin into existing applications
Why choose Kotlin

Setting up Your Kotlin Development Environment

Introducing IntelliJ
Setting up IntelliJ for macOS
Setting up IntelliJ for Windows

Integrating Kotlin into an Existing Spring Boot Application

Exploring an existing server-side application
Adding Kotlin to an existing project
Migrating Java code to Kotlin
Handling platform types
Leveraging Kotlin language features
Java and Kotlin interop
Challenge - Migrate the project to Kotlin
Solution - Migrate the project to Kotlin

Building a Server-Side Application Using Ktor

Creating a new Ktor project
Adding your first route
Testing your local service
Adding status pages
Storing a list of products
Returning typed responses
Adding new products
Authenticating routes
Challenge - Return all active orders
Solution - Return all active orders

Conclusion

Next steps