ImageServiceImpl.kt

class ImageServiceImpl(
  private val client: HttpClient
) : ImageService {
  override suspend fun getImages(): ImageResponse {
    return client.get {
      headers {
        append(HttpHeaders.Authorization, "Client-ID ${BuildConfig.CLIENT_ID}")
      }
      url(HttpRoutes.FETCH_IMAGES_URL)
    }
  }
}

object HttpRoutes {
  private const val BASE_URL = "https://api.unsplash.com"
  const val FETCH_IMAGES_URL = "${BASE_URL}/photos?page=1"
}