Send byte array in node.js to server

Question

I can\'t figure out to send byte array while being connected to server on Debian. Is there any alternative to sending string via client.write()? I tried clien

Answer 1

There's an example of a BufferStream class here, that can be used for turning buffers into readable streams.

The article has an example of piping a buffer stream through a response object, however, seeing as client.connect returns a net.Socket which implements duplex Stream, you should equally be able to pipe the buffer stream into your client socket.

For example:

var buffer = new Buffer([0x4, 0xFF, 0x01, 0x20, 0x0]),
    stream = new BufferStream(buffer),
    client = net.connect({ host: 'someIp.pl', port: 7171 }, connected);

function connected() {
  stream.pipe(client);
  // do other things
}

Generally speaking, if you can stream something in Node, you probably should. It's a more elegant model and allows you to do some cool things.

There are a bunch of examples of streams in practice which are interesting to look at, here: http://nodestreams.com/

Answer 2

Buffer didn't work for me because I had a custom class named exactly as node.js's one. This works:

testBuff = new Buffer([4, 0, -1, 1, 32, 0]);
client.write(testBuff);