Unable to transform request

Content:

data class CreateAccountContent(
        val id: Int,
        val password: String
)

Main.kt:

fun main(args: Array<String>){
    val handler = DatabaseHandler()
    val server = embeddedServer(Netty, port = 12345) {
        routing {
            // ...
            post("/account"){
                try {
                    val post = call.receive<CreateAccountContent>()
                    if (handler.createUser(post)) {
                        call.respond(HttpStatusCode.OK, "OK")
                    } else {
                        call.respond(HttpStatusCode.BadRequest, "BAD")
                    }
                } catch (e: Exception) {
                    println(e)
                }
            }
        }
    }
    server.start(wait = true)
}

Curl request:

curl --request POST \
     --header "Content-Type: application/json" \
     --data '{"id": 7, "password": "ABCDEF"}' \
     http://localhost:12345/account

Output:

io.ktor.request.CannotTransformToTypeException: Cannot transform this request's content to class com.martmists.moneyservice.content.CreateAccountContent

Alternatively, I have tried the following Lua code:

http.post("http://localhost:12345/account",  -- url
          "id=7&password=ABCDEF")  -- POST Body

[soywiz]

You have to install the ContentNegotiation feature: https://ktor.io/features/content-negotiation.html

[theothermattm]

For anyone else who hits this, my issue was that I mistakenly installed ContentNegotiation inside the routing block and it should have been done outside it.