Arch Event Observer

Arch Event Observer is a Kotlin-first event and result observation toolkit for Android and Compose Multiplatform.

The repository is split into two public modules:

• event-observer for DataResult, ResponseLiveData, ResponseFlow, and reactive helpers
• event-observer-compose for ComposableDataResult and Compose-driven state rendering

What You Get

• A single DataResult<T> model for success, loading, error, and neutral states
• LiveData wrappers for Android UI layers
• Flow wrappers for shared state and coroutine-based pipelines
• Compose helpers for declarative rendering without manual when blocks
• published docs that stay aligned with the shipped public API

Choose Your Module

• event-observer for the base model, LiveData, and Flow support
• event-observer-compose for Compose rendering on top of the base module

Start Here

• Getting Started
• event-observer
• event-observer-compose
• Core Concepts
• Recipes
• API Reference
• Changelog
• Contributing

Quick Example

val result = dataResultSuccess("Hello")

result.unwrap {
    data { value -> println(value) }
    error { throwable -> println(throwable.message) }
}

myFlow.composable.Unwrap {
    OnShowLoading { CircularProgressIndicator() }
    OnData { value -> Text(value.toString()) }
    OnError { error -> Text(error.message ?: "Unknown error") }
}

Scope

This project keeps the API focused on observation and rendering. It does not try to replace your repository, state holder, or UI architecture.