I am trying to get the example code to work listed here: Json - Clients - Ktor , notable:

val client = HttpClient(HttpClientEngine) {
    install(JsonFeature) {
        serializer = GsonSerializer()
    }
}

but theres an issue with

HttpClient(HttpClientEngine)

The error says

HttpClientEngine

does not have a companion object, thus must be initialized here, what am I doing wrong?

I think you should use an implementation of HttpClientEngine. U can find all available client at this link https://ktor.io/clients/http-client/engines.html

that was right, i didnt realize that HttpClientEngine was just a placeholder for the engine you wanted to use

I think the problem is in the configuration of your gson instance. did you add prettyprinting() to your gsonbuilder?

no, i hadnt, thanks a lot!