```HtmlContent { head { title { +"Posts" }...

# ktor

[Gerard de Leeuw]

HtmlContent {
        head { title { +"Posts" } }
}

Here you are effectively calling the constructor of HtmlContent and adding content to it, but you are not returning the constructed instance. Your function respondWithPostList has no return type, so it will implicitly return Unit.
I think the most neat solution is to make your respondWithPostList function an extension method of HtmlContent. So it would look like this:

fun HtmlContent.respondWithPostList(posts: List<PostDTO>?) {
        head { title { +"Posts" } }
        body {
            posts?.forEach { post ->
                run {
                    div {
                        h3 {+"${post.title} (${post.id})"}
                        p {+post.author.email}
                    }
                }
            }
        }
}

[Hadi]

Thanks a lot Gerard for the reply. But for the first mistake I made the following should work, shouldn't it?

[Gerard de Leeuw]

Yeah, I think that works too.

[Gerard de Leeuw]

Theoretically at least, I can't really test it right now 😉

[Hadi]

Yeees, thanks a lot buddy