Meteor.wrapAsync

Wrap a function that takes a callback function as its final parameter. The signature of the callback of the wrapped function should be function(error, result){}. On the server, the wrapped function can be used either synchronously (without passing a callback) or asynchronously (when a callback is passed). On the client, a callback is always required; errors will be logged if there is no callback. If a callback is provided, the environment captured when the original function was called will be restored in the callback.