I have this data class ```@Serializable data class...

# getting-started

[jean]

I have this data class

@Serializable
data class ApiResponse<T> (

    @Serializable(with = HttpStatusCodeSerializer::class)
    val code: HttpStatusCode,

    val errors: List<KlubberError> = emptyList(),
    val data: T,
)

Does it make sense to use a type ApiResponse<Nothing> in case of errors? And what should I pass for the data parameter?

val response = ApiResponse<Nothing> (
    code = myCode,
    errors = listOf(error1, error2),
    data = <what should I use here?>,
)

Using Unit instead of Nothing allows me to write data = Unit is that a better approach?

[Paul Griffith]

sealed class ApiResponse {
	abstract val code: HttpStatusCode,

	data class StandardResponse<T>(
		override val code: HttpStatusCode,
		val data: T,
	) : ApiResponse()

	data class ErrorResponse(
		override val code: HttpStatusCode,
		val errors: List<KluberrError>,
	) : ApiResponse()
}

maybe something like this?

[Łukasz Bednarczyk]

Maybe make data nullable?

[Łukasz Bednarczyk]

val data: T?

[jean]

@Paul Griffith yeah I guess I’ll go with that design, I guess not having the error property at all in case of success is a good thing