If you look at https://github.com/kborchers/aerogear-js/blob/Notifier/src/notifier/adapters/vertx.js#L201, you'll see that the callback is just passed directly to the underlying library with no concern for what arguments are used. This will eventually be moved to a subscribe() method but I just did it in connect right now. Anyway, this means the API for any adapter would be the same and the difference in arguments would just need to be documented. Does that make sense? Is that any better?

On Feb 26, 2013, at 7:56 AM, Matthias Wessendorf <matzew@apache.org> wrote:

we have no control over what the underlying library passes to the callback. I guess we could write some intermediary process that intercepts the callback and reformats it to just provide a message but I
feel like that would limit people that want access to those other parameters that the library for which we provide an "adapter" is providing.

I think the real problem is this, having different impls:
vert.x -> subscribe("channel", function(msg, replyTo));
stomp.js -> subscribe("channel", function(msg));

but how to 'hide' behind a unified API ?

a) ignoring 'un common' args (e.g. the replyTo, on vertx)
b) having different subscribes -> ugly API

Or am I not seeing something, obvious, specific to JS ?

--
Matthias Wessendorf

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