Resources

@Serializable
@Resource("/users")
data class Users {
  @Serializable
  @Resource("/{id}")
  data class ById(val parent: Users = Users(), val id: Long)

  @Serializable
  @Resource("/add")
  data class Add(val parent: Users = Users(), val name: String)
}

// client-side
val newUserId = client.post(Users.Add("new_user")) // "/users?name=new_user"
val addedUser = client.get(Users.ById(newUserId)) // "/user/123"