How does ktor serialize

body

, which is of type

Any

? When I do something like this, it fails..

@Serializable
class Foo(val bar: String)

@Test
fun test() {
    val any: Any = Foo("asd")
    Json.encodeToString(any).also { println(it) }
}

Could you please share a code with Ktor involved?

private suspend inline fun <reified V> MethodData.call(): V {
        return <http://httpClient.post|httpClient.post> {
            url(endpoint(token, id))
            contentType(ContentType.Application.Json)
            body = this@call
        }
    }

above has

body

type of

Any

MethodData

is interface. I call

call

method on subclasses of

MethodData

but in the scope of

call

it is denoted by

MethodData

. I believe same thing is happening in my above code. But it is failing for my code, where as ktor is able to encode the body.

There is a method HttpClient.defaultTransformers that creates an instance of

OutgoingContent

object depending on a body's actual type.

Won’t it evaluate to

content = null

since

ContentType

is neither

Plain/ByteArray/ByteReadChannel

?

If you have the

JsonFeature

installed then it will return TextContent object earlier (a serializer will be determined on this line).

Ah I see. Now I get it. Thanks a lot!