Hey, I have a problem where this class: ```@Serializable data class EntryRecord( val id: Int?, ...

# kvision

[UNuX]

Hey, I have a problem where this class:

@Serializable
data class EntryRecord(
    val id: Int?,
    @Contextual val creationDate: Date?,
    val contractType: String,
    val contractNumber: String,
    val pricePrepaid: Int,
    var pricePrepaidConfirmed: Boolean,
    val priceTotal: Int,
    var priceTotalConfirmed: Boolean,
    val additionalInfo: String?
)

Is serialized to this string:

"{"_id":null,"_creationDate":null,"_contractType":"Test","_contractNumber":"Test","_pricePrepaid":20099,"_pricePrepaidConfirmed":false,"_priceTotal":400095,"_priceTotalConfirmed":false,"_additionalInfo":""}"

Why is kotlin adding _ in front of every field name? How do I get rid of this?

[Robert Jaros]

How do you serialize it? I suppose you are using native JS serialization and you should use kotlinx.serialization.

[UNuX]

Em, I'm using this:

fun addRecord(record: EntryRecord): Promise<dynamic> {
        return RestClient().requestDynamic("/api/v1/records") {
            method = <http://HttpMethod.POST|HttpMethod.POST>
            data = record
        }
    }

Is there a better way?

[Robert Jaros]

RestClient().requestDynamic("/api/v1/records", data) {
    method = <http://HttpMethod.POST|HttpMethod.POST>
}

[Robert Jaros]

When you put your data as parameter, it will be automatically serialized by kotlinx.serialization.

[Robert Jaros]

When setting with RestRequestConfig (like in your example) it will be passed directly to fetch API if you won't provide a serializer as well.

[Robert Jaros]

This is how requestDynamic with a typed parameter is defined:

inline fun <reified V : Any> RestClient.requestDynamic(
    url: String,
    data: V,
    crossinline block: RestRequestConfig<dynamic, V>.() -> Unit = {}
): Promise<RestResponse<dynamic>> {
    return receive<dynamic, V>(url) {
        block.invoke(this)
        this.data = data
        this.serializer = serializer()
    }
}

[UNuX]

I see, thanks a lot