Exploring Ktor with Kotlin Multiplatform and Compose

Course details

In this hands-on course, Troy Miles—an award-winning software engineer, speaker, and author—explores the powerful combination of Ktor and Kotlin Multiplatform to build full-stack applications that share code across platforms. Step through the full process of creating a data-rich server application with Ktor, deploying it to AWS, and building cross-platform mobile clients using Kotlin Multiplatform with Jetpack Compose for Android and SwiftUI for iOS. Learn advanced techniques for handling large datasets, implementing API security, and creating efficient mobile UIs that communicate seamlessly with your backend. Plus, explore best practices for the security and performance of your applications.

Learning objectives
Build and deploy a Ktor server application to AWS that efficiently serves large datasets.
Create a shared network layer using Kotlin Multiplatform that works on both Android and iOS.
Develop a cross-platform mobile app that connects to your backend service using Jetpack Compose for Android and SwiftUI for iOS.
Implement best practices for security and performance in both server and client applications.

Concepts

0. Introduction

01 - Explore Ktor with Kotlin Multiplatform and Compose Multiplatform

1. Getting Started with Ktor Server

02 - Set up Kotlin Multiplatform (KMP) projects with a Ktor server
03 - Essential Ktor plugins
04 - NASA Astronomy Picture of the Day (APOD) API integration
05 - APOD API endpoints with validation
06 - Challenge - Enhanced date validation
07 - Solution - Enhanced date validation

2. Data Storage and Caching

08 - SQLite setup with Exposed object-relational mapping (ORM)
09 - Data access layer implementation
10 - Caching layer integration
11 - Background jobs and scheduling
12 - Challenge - Log each cached APOD
13 - Solution - Log each cached APOD

3. Advanced API Features

14 - Enhanced error handling and status pages
15 - Advanced routing and request processing
16 - Performance monitoring and optimization
17 - API documentation and testing
18 - Challenge - Date range filtering
19 - Solution - Date range filtering

4. Kotlin Multiplatform Foundations

20 - KMP project architecture
21 - Shared data models and constants
22 - Dependency injection setup
23 - Challenge - Platform-specific logging
24 - Solution - Platform-specific logging

5. Shared Network Layer

25 - Ktor client setup
26 - Repository pattern with shared code
27 - Shared business logic
28 - Challenge - Repository error handling
29 - Solution - Repository error handling

6. Compose Multiplatform UI

30 - Compose UI architecture
31 - APOD display screens
32 - Client integration
33 - Use cases and clean architecture
34 - Challenge - Complete the FindScreen navigation
35 - Solution - Complete the FindScreen navigation

7. iOS Integration

36 - Understanding iOS generation
37 - Xcode project configuration
38 - Running on iOS simulator
39 - Challenge - Cross-platform verification
40 - Solution - Cross-platform verification

Conclusion

41 - Next steps and course summary