Is there a way to, using the ktor client, handle a...

# ktor

[einar]

Is there a way to, using the ktor client, handle a response that can be of different type when performing a POST request? I was thinking of using sealed class for this but I’m falling short when it comes to supporting the de-serialization of the response.

So something like
sealed class ApiResponse
<http://client.post|client.post><ApiResponse> { }

@Serializable data class ErrorResponse(...) : ApiResponse()
@Serializable data class SuccessResponse(..) : ApiResponse()

[r4zzz4k]

Do you use KotlinxSerializer? Is it JVM or some other target?

[einar]

Yes, I’m using `KotlinSerializer`and targeting iOS and Android in MPP

[r4zzz4k]

iOS can't acquire serializers via reflection, so you'll have to register all your serializers manually. Also, as far as I'm aware, polymorphic serializer for multi-platform is WIP right now.

[r4zzz4k]

https://github.com/Kotlin/kotlinx.serialization/pull/394 Here's PR which you can track for progress. Unfortunately I'm unable to find relevant issue.

[einar]

Excellent, thank you for pointing me towards this 👍

[r4zzz4k]

Glad I could help!