NOTE: This is fork of KStore. I forked it mainly to support new new Kotlin default hierarchy template It shall most likely be temporary once @xxfast starts mainting the original actively again.

A tiny Kotlin multiplatform library that assists in saving and restoring objects to and from disk using kotlinx.coroutines, kotlinx.serialization and kotlinx.io. Inspired by RxStore

• 🔒 Read-write locks; with a mutex FIFO lock
• 💾 In-memory caching; read once from disk and reuse
• 📬 Default values; no file? no problem!
• 🚚 Migration support; moving shop? take your data with you
• 🚉 Multiplatform!

KStore is published on Maven Central. Latest version

repositories { 
  mavenCentral() // should be already there usually
}

# for common
kstore = { module = "tech.arnav:kstore", version.ref = "kstore" }

# for android, iOS, desktop and nodeJs
kstore-file = { module = "tech.arnav:kstore-file", version.ref = "kstore" }

# for jsBrowser and wasmJsBrowser
kstore-storage = { module = "tech.arnav:kstore-storage", version.ref = "kstore" }

Depending on your target platforms, you will need to add platform configurations here

import kotlin.io.path.Path
import kotlinx.serialization.Serializable

// Take any serializable model 
@Serializable data class Pet(val name: String, val age: Int) 

// Create a store
val store: KStore<Pet> = storeOf(file = Path("path/to/my_cats.json"))

// Get, set, update or delete values 
val mylo: Pet? = store.get()
store.set(mylo)
store.update { pet: Pet? ->
  pet?.copy(age = pet.age + 1)
}
store.delete()

// Observe for updates
val pets: Flow<Pet?> = store.updates

Documentation here

API Reference here

Copyright 2023 Isuru Rajapakse

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.