callback for listen ?

[darkyen]

Listen might throw error, and can be fairly non-sync. I don't think there is error mechanism in the library so far, callback for listen maybe ?

[iefserge]

Callback might be hard to support for node, because it has listening event, but no "listening error" event. Would this work? Basically the same events as in node:

server.onerror = err => console.log('some server error');
server.onlistening = () => console.log('listening');

[darkyen]

I'd prefer extending an EventEmitter for Server instead of onerror, onlistening, anyhow it needs to be aware of the listen callback from the backend.

I was hoping something like this

function listen(handle, port, callback){
     handle.listen(port);
     handle.once('listen', callback);
}

or even better with promises

// proimisified by bluebird.
function listen(handle, port, callback){
     return handle.listenAsync(port);
}

As mentioned here https://nodejs.org/api/net.html#net_server_listen_path_backlog_callback
node does support listen event in the form

server.listen(path[, backlog][, callback])

Then with the power of ES 7 async/await we can simply just make them completely async calls. Even without ES7 the promise way in general will make your server code much cleaner :-) and we can pipe promises.

[iefserge]

This lib doesn't use EventEmitter, so events are handled by properties like onclose, onerror that support one possible listener. Arguably makes it more portable, one less dependency I guess.
Node's listen() has a callback, but it's the same as attaching listening event, it doesn't really handle possible errors. Otherwise, I think promises (and es7 async of course :) ) would be great for this.

something like this for Node:

function listen(handle, port, cb) {
  handle.listen(port, function() {
    server.onlistening();
    cb();
  });
}

[darkyen]

I am forking the lib, to add event emitter which are supported natively in node and mostly in browsers and visionmedia/debug support expect PR 👍 :-)

[iefserge]

I'd keep it without event emitter, it's a little faster and it's one less dependency.

[darkyen]

After looking at runtimejs.org I understand why you wish to keep this extremely low dependency.

[adminy]

@darkyen I have no idea what you’re talking about, runtimejs.org is filled with dependencies everywhere. You even have files that require each other in the project. If you want to have the event emitter why not use express server? It’s got everything you need. This is a very nice http library because it’s so adaptable. If you could make it parameter passed library I don’t see a problem with that, but don’t make it require it out of the box, it removes it’s portability.