I spent a bunch of time monkeying with "-Xjavac-arguments" in my compileKotlin to no avail

i know this doesn't answer your question, but why build with java9?

That's a question I've asked myself

yep. i mean JDK 10 is out and stable so no reason to use legacy JDKs anymore.

i meant why not use 8 🤔

10 > 8

you're not wrong about that.

🧌

people who do async web programming, do you do error handling async too?

i'm considering introducing async-results in javalin, but only for get/post/put/etc, i'm wondering if this would be too restrictive

It might not be a very useful answer for your immediate question, but I just don’t use Heroku. Buildpacks have been a pain on every single project I’ve ever participated in that used Heroku. IMO it’s a fundamentally wrong-headed approach: deploy artifacts that you (or a process under your control) has built, not source that some other thing then has to figure out how to assemble into something runnable.

here's an example: https://github.com/orangy/ktor-heroku-start/blob/master/Procfile

anyone here using swagger? is it possible to use swagger without a specific framework, just for annotating a plain kotlin function?

@tipsy there are generally 3 types of integration AFAIK: 1. take a swagger JSON file and generate client/server code from it 2. annotate your code and then run it through a build plug-in to generate the swagger JSON for inclusion in a JAR (statically served). I don't think there are any generic annotations available for this, but I could be wrong - the f/w writer has to implement both bits 3. generate live swagger documentation from the endpoint code -

http4k-contract

does this at runtime using a combination of the lens mechanism and a DSL-y type API to add route metadata. If you supply example request/responses, then http4k will also break down the models and generate JSON-schema definitions into the swagger JSON.

it's 3 i'm the most interested in exploring

i'll have a look at

http4k-contract

👀

Hello! I have just started using Exposed as my ORM for Postgresql. I want to use generics for Tables but seem unable to figure out how to use them.

`

class ApiController<T> where T: ApiModel, T: Table {

    fun <T> index(ctx: Context) where T: ApiModel, T: Table {
        T.serialize() <-- Not working, not found
        transaction {
            ctx.result()
}
`

this is what i have tried but i cannot get the ApiModel functions from my generic type T

You need an object of type

T

. You can't call

serialize

directly on the type.

I thought that T already was an object?, we cannot have an companion object in an object

T is the type just as String

T should not be a Type but an object So how do we get T as an object then?

are you familiar with java? if yes, please translate back to java and you’ll notice the issue

Ok, I’ll give it a try, thanks

basically, you’re saying that T has constraints but there’s no object of type T in your method the only one is

ctx

and it’s of type

Context

oooh i see now! Got it working Thank you! We added an instance of our singelton in our class, can’t believe that i missed that

you’re welcome 🙂

sometimes, it’s more explicit if you go back to java

Are there any small embeddable web servers in kotlin that would work with kotlin native?

Not looking for performance or scale

@RichyHBM not sure if sunhttp server works in native land, but if it does then you can try http4k - there are zero dependencies on the core library VV 😞