Runner.kt

fun main() {
    val imagesHost = System.getenv("IMAGES_HOST")
    val imagesApiKey = System.getenv("IMAGES_API_KEY")

    val dbHost = System.getenv("DB_HOST")
    val dbUser = System.getenv("DB_USER")
    val dbPass = System.getenv("DB_PASS")
    val dbName = System.getenv("DB_NAME")

    val dataSource = MysqlDataSource().apply {
        databaseName = dbName
        serverName = dbHost
        user = dbUser
        password = dbPass
    }

    val imagesBackend = ClientFilters.SetHostFrom(Uri.of(imagesHost))
        .then(ClientFilters.BearerAuth(imagesApiKey))
        .then(JavaHttpClient())

    val petService = PetService(
        pets = PetsDao(dataSource),
        images = ThirdPartyImageClient(imagesBackend)
    )

    RestApi(petService)
        .toHttpHandler()
        .asServer(SunHttp(port = 8000))
        .start()
        .block()
}