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# serialization

[Slackbot]

This message was deleted.

[hfhbd]

There are treated as the underlying value. Do you have a test?

[Cies Breijs]

Absolutely right.. I encountered this using terpal-sql and thought it was a due to kotlinx.serialization... My bad. I'm deleting this thread in a bit so no-one needs to be bothered by it.

Thanks for chiming in!

Here the test:

import kotlinx.serialization.Serializable
import kotlinx.serialization.json.Json

@JvmInline
@Serializable
value class ProductId(val value: Long)

@Serializable
data class ProductDto(
    val id: ProductId,
    val name: String
)

fun main() {
    val d = Json.decodeFromString<ProductDto>("""{"id": 1000, "name": "qweqw"}""")
    println(d) // ProductDto(id=ProductId(value=1000), name=qweqw)
    
    val s = Json.encodeToString(d)
    println(s) // {"id":1000,"name":"qweqw"}
}