store 0.5.0 indexed Enables state management using a reducer pattern, focusing on handling actions, states, and side effects. Offers a structured approach to building applications with a clear state flow.
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Metadata
Owner floschu
Stars 1
Used by —
Health —
License Apache License 2.0
Latest 0.5.0
Repository github.com/floschu/store
Updated 2026-01-23 Readme Changelog
installation
repositories {
mavenCentral()
}
dependencies {
implementation("at.florianschuster.store:store:$version")
}
see changelog for versions
usage
Go to store as entry point for more information.
A more complex Compose Multiplatform example can be found in the example directory .
Check out the store skill to implement and test store with your AI agents .
author
visit my website .
class LoginEnvironment (
val authenticationService: AuthenticationService,
val tokenRepository: TokenRepository,
)
sealed interface LoginAction {
data class EmailChanged (val value: String): LoginAction
data class PasswordChanged (val value: String): LoginAction
data object Login: LoginAction
data class LoginResult (val result: Result<Token>): LoginAction
}
data class LoginState (
val emailAddress: String = "" ,
val password: String = "" ,
val loading: Boolean = false ,
val displayLoginError: Boolean = false ,
) {
val isInputValid = emailAddress.isNotEmpty() && password.isNotEmpty()
}
val LoginReducer = Reducer<LoginEnvironment, LoginAction, LoginState> { previousState, action ->
when (action) {
is LoginAction.EmailChanged -> previousState.copy(emailAddress = action.value)
is LoginAction.PasswordChanged -> previousState.copy(password = action.value)
is LoginAction.Login -> {
if (!previousState.isInputValid) return @Reducer previousState
cancelEffect(id = LoginAction.Login)
effect(id = LoginAction.Login) {
val result = environment.authenticationService.authenticate(
previousState.emailAddress,
previousState.password,
)
dispatch(LoginAction.LoginResult(result))
}
previousState.copy(
loading = true ,
displayLoginError = false
)
}
is LoginAction.LoginResult -> {
action.result.onSuccess { token ->
effect(id = LoginAction.LoginResult::class ) {
environment.tokenRepository.store(token)
}
}
previousState.copy(
loading = false ,
displayLoginError = action.result.isFailure
)
}
}
}
class LoginStore (
effectScope: CoroutineScope,
environment: LoginEnvironment,
): Store<LoginEnvironment, LoginAction, LoginState> by Store(
initialState = LoginState(),
environment = environment,
effectScope = effectScope,
reducer = LoginReducer,
)
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