Confetti: building a Kotlin conference app in 40min 🎊
summary
Confetti is a working conference app with a runnable GraphQL server and iOS Android clients built from shared KMM code the backend uses graphql-kotlin on Ktor with kotlinx.serialization the clients use Apollo Kotlin to generate typesafe models and a shared repository plus KMM shared viewmodel exposing StateFlow the UIs are native with Jetpack Compose and SwiftUI caching uses Apollo memory and persistent caches the repo is open source and the app is published to the App Store.
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chapters (7)
- 0:00Kotlin multi-platform & Compose intro
- 7:02GraphQL backend with Ktor
- 20:58Shared Kotlin for mobile
- 26:12Android UI with Jetpack Compose
- 29:03iOS UI with SwiftUI
- 33:28Wear OS exploration
- 34:37Summary & open-source
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