Work management framework streamlines task handling through customizable workers, supporting operations like enqueueing, retrying, and failure management, inspired by Koin, WorkManager, and NSOperation.
Lorraine is a lightweight, persistent work management framework for Kotlin Multiplatform. Inspired by Android's WorkManager and NSOperation, it provides a unified API for managing background tasks across Android and iOS, ensuring they run even if the app is restarted.
then operations.requiredNetwork, requireBatteryNotLow and requireCharging for your tasks.Add the dependency to your project using Version Catalogs:
[versions]
lorraine = "0.3.0" # Use the latest version
[libraries]
lorraine = { module = "io.github.dottttt.lorraine:lorraine", version.ref = "lorraine" }
In your module's build.gradle.kts:
kotlin {
sourceSets {
commonMain.dependencies {
implementation(libs.lorraine)
}
}
}
Create your background logic by extending WorkLorraine. Use LorraineResult to communicate the outcome.
class SyncDataWorker : WorkLorraine() {
override suspend fun doWork(inputData: LorraineData?): LorraineResult {
return try {
// Your heavy work here
// val userId = inputData?.getString("userId")
LorraineResult.success()
} catch (e: Exception) {
LorraineResult.retry()
}
}
}
Register your workers during app startup.
const val SYNC_USER = "SYNC_USER"
fun initLorraine(context: LorraineContext): Lorraine {
return startLorraine(context) {
work(SYNC_USER) { SyncDataWorker() }
logger {
enable = true // Enable internal logging for debugging
}
}
}
class MyApplication : Application() {
override fun onCreate() {
super.onCreate()
initLorraine(createLorraineContext(this))
}
}
// In your iOS Application delegate or SwiftUI App
initLorraine(createLorraineContext())
lorraine.enqueue(
queueId = "single_sync",
type = ExistingLorrainePolicy.REPLACE,
request = lorraineRequest {
identifier = SYNC_USER
constraints {
requiredNetwork = true
}
}
)
Combine multiple requests into a single operation.
val operation = lorraineOperation {
existingPolicy = ExistingLorrainePolicy.APPEND
startWith {
identifier = "REFRESH_TOKEN"
}
then {
identifier = SYNC_USER
}
}
lorraine.enqueue("user_refresh_chain", operation)
You can monitor the status of your tasks in real-time:
lorraine.listenLorrainesInfo().collect { infoList ->
infoList.forEach { info ->
println("Task ${info.id}: ${info.state}")
}
}
PeriodicWorkContributions are welcome! Please feel free to open a pull request or report issues.
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