Konfigure

Kotlin Property Delegation-based application configuration library. Tailored for Android, but ready for multiplatform.

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// Base module
implementation "nz.co.trademe.konfigure:konfigure:${current.version}" 

// Android module, including UI
implementation "nz.co.trademe.konfigure:konfigure-android:${current.version}" 

// Extra: Firebase Remote Config
implementation "nz.co.trademe.konfigure:konfigure-firebase:${current.version}"

Usage

1. Create a config source, or optionally use FirebaseRemoteConfigSource from the konfigure-firebase module

object LocalSource: ConfigSource {

    override val all: Map<String, String>
        get() = TODO("Provide some config key-value pairs")
}

2. Create a config subclass

class AppConfig: Config(configSources = listOf(LocalSource))

3. Add some configuration items

class AppConfig: Config(configSources = listOf(LocalSource)) {

    // The most simple config item, which uses the property name as a 
    // key and sensible non-null default values
    val someSimpleItem: Boolean by config()

    // Add a simple config item 
    val someItem: Boolean by config(
        key = "item_key",
        defaultValue = false
    )

    // OR, using `konfigure-android`, add a displayable config item
    val someEditableItem: Boolean by config(
        key = "item_key_2",
        defaultValue = false,
        title = "Something",
        description = "Some editable config item",
        group = "Some group"
    )
}

4. Use it!

val config = AppConfig()

// Use the property! This will check your config sources, look for overrides, and if it doesn't 
// find anything will use the defaultValue parameter
if (config.someItem) {
    TODO("Do something cool")
}

Konfigure supports much more advanced usages however. By adding custom metadata, you can customise the behaviour of konfigure to your hearts content. For more examples, check out the sample.

Modules

Konfigure contains a number of modules, which are useful for different things. Here's a quick run down of what they all do - more information can be found within these modules.

konfigure

This is the base module for Konfigure, which contains the core logic. Usage is as describe in the usage section of this README.

konfigure-android

This module contains Android-specific utilities, as well as a UI component which allows you to change the value of the config items within the app. In here you'll find things like SharedPreferencesOverrideHandler which gives you easily persistable overrides, as well as ConfigActivity and ConfigView for presenting overrides.

konfigure-firebase

This module contains a pre-build Firebase Remote Config source. Eventually this could be made multiplatform, as the Firebase SDK can be found on most platforms Kotlin/Multiplatform supports.

Contributing

We love contributions, but make sure to checkout CONTRIBUTING.MD first!