No, Elm doesn't provide access to JavaScript promises. But what it really boils down to is that from Elm you cannot access a JavaScript object directly. You need a *foreign-function interface* to act as a gateway between Elm and JavaScript, which is what Elm ports do: http://guide.elm-lang.org/interop/javascript.html
Basically, to access the MediaStream API from Elm, you can: 1. Create Elm ports to allow your Elm code to make requests against the MediaStream API. You'd end up with Tasks that then you'd execute like any other Task using the Elm architecture. 2. Create Elm ports to allow your Elm code to subscribe to responses and events from the MediaStream API. 2. On the JavaScript side, add code to respond and reply to requests coming through the aforementioned Elm ports. The tricky part here is that the MediaStream API is stateful, and there's really no way I can think of to serialize this state and pass it back and forth between JavaScript and Elm, so you'll have to manage the MediaStream state on the JavaScript side. On Tuesday, November 8, 2016 at 4:24:41 PM UTC-5, Chris Van Vranken wrote: > > I am trying to call GetUserMedia with the MediaStream API, which requires > the use of Promises. Is there a good way to work with promises in Elm at > this point? Can it be done with Task or Process API? Or should this piece > of my code be done entirely in Javascript? Thanks. > -- You received this message because you are subscribed to the Google Groups "Elm Discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to elm-discuss+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
