JavaScript object as function parameter

Question

I'm writting a function transpiled with Scala.js that should accept any random JavaScript object.

Ex:

// This has been transpiled using Scala.js
var my_service = new com.myself.Service();

// This is plain JavaScript 
var result1 = service({ hello: "yolo" });
var result2 = service({ whatever: "ok", really: { yes: "right", no: "don't" } });

However, I can't find the input type that matches it.

What would be the Scala-function signature to get such a thing?
Could it be used then as a "Scala/JS case class" easily?

Note (if it helps giving a direction for the answers): these objects have, in the real life, an expected schema but it cannot be created as JS object generated from Scala.js since it comes from another consumed service.

Those are JavaScript object literals (containing strings and more object literals). They aren't JSON. If you extracted them from the JavaScript and put them in a file of their own then they still wouldn't be JSON as JSON only allows strings as property names (and not identifiers as you are using here). — Quentin
– Quentin, Commented Aug 11, 2016 at 9:01

gzm0 · Accepted Answer · 2016-08-11 12:54:07Z

1

Since the objects have an expected schema, its probably easiest to define a facade type:

@js.native
trait Args extends js.Object {
  val hello: js.UndefOr[String]
  val whatever: js.UndefOr[String]
  val really: js.UndefOr[ReallyArgs]
}

@js.native
trait Really extends js.Object {
  val yes: String
  val no: String
}

def myMethod(args: Args): Unit = {
  println(args.hello)
  println(args.really.map(_.yes))
}

answered Aug 11, 2016 at 12:54

gzm0

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