node package manager

stream-to-promise

Convert streams (readable or writable) to promises

stream-to-promise

Convert streams (readable or writable) to promises

$ npm install --save[-dev] stream-to-promise
streamToPromise(readableStream).then(function (buffer) {
  // buffer.length === 3 
})
readableStream.emit('data', new Buffer())
readableStream.emit('data', new Buffer())
readableStream.emit('data', new Buffer())
readableStream.emit('end') // promise is resolved here 
streamToPromise(writableStream).then(function () {
  // resolves undefined 
})
writableStream.write('data')
writableStream.end() // promise is resolved here 
var err = new Error()
streamToPromise(stream).catch(function (error) {
  // error === err 
})
stream.emit('error', err) // promise is rejected here