Kotlin for Java Developers

Introduction

• Move from Java to Kotlin to build your dream application

1. Java and the JVM Ecosystem

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

2. Kotlin for Server-Side Applications

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

3. Setting up Your Kotlin Development Environment

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

4. 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

5. 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