Promise-enhancing wrapper for pump.
npm install pump-promise
Simply pass the streams you want to pipe together to pump-promise as same as for the original pump.
var pump = require('pump-promise')
var fs = require('fs')
var source = fs.createReadStream('/dev/random')
var dest = fs.createWriteStream('/dev/null')
pump(source, dest).then(function() {
console.log('pipe finished', err)
}).catch(function(err) {
console.log('pipe error', err)
});