Use ES6 Promise in place of callbacks

[mortenn]

I think this would be a beneficial change long term - 6.0?

[thedark1337]

if people want to use Promise, node v8's promisfy or bluebird's promisfy function is a viable option. 90% of the callbacks plugAPI provides is in the correct form of callback(err, data) => {}; (There are a few that only callback(data) )

I see no benefit of having to rewrite the entire lib to use promises and making people change their existing code to have to use promises.

[Dazzuh]

Do either v8's or bluebirds promisify work on PAPI yet? last time I checked they did not

[mortenn]

In my opinion, using a standard feature of the platform is a benefit in and of itself.

[mortenn]

As a kind of compromise, maybe methods that take a callback could return a promise if called without a callback argument?

[mortenn]

As an interim solution, I wrote this function:

function toPromise(call)
{
	return new Promise(
		function(resolve, reject)
		{
			call(
				function(err, data)
				{
					if(err)
						return reject(err);
					resolve(data);
				}
			);
		}
	);
}

Or, if you want to be slightly more evil:

function toPromise(call)
{
	return new Promise(
		(resolve, reject) => call((err, data) => err ? reject(err) : resolve(data))
	);
}

;)