buttjs

Pure Javascript client for BUTT (Broadcast Using This Tool). It offers both a command line interface and a Javascript API. The command line interface is suitable for a drop-in replacement for the official BUTT client. The Javascript API is suitable for use in your own NodeJS applications.

Installation

If you intend to use the command line interface, you can install the package globally with:

npm install -g buttjs

If you intend to use the Javascript API, you can install the package locally in your NodeJS package root directory with:

npm install --save buttjs

Usage

Command line interface

Type buttjs to see the command line options and usage.

$ buttjs --help

Usage: buttjs [options]

Pure Javascript client for BUTT (Broadcast Using This Tool)

Options:
  -v, --version                                   output the version number
  -s, --start-streaming                           connect to streaming server
  -d, --stop-streaming                            disconnect from streaming server
  -r, --start-recording                           start recording
  -t, --stop-recording                            stop recording
  -n, --split-recording                           split recording
  -q, --quit                                      quit butt
  -u, --update-song-name <string>                 update song name
  -S, --get-status                                request status
  -M, --set-streaming-signal-threshold <number>   set streaming signal threshold (seconds)
  -m, --set-streaming-silence-threshold <number>  set streaming silence threshold (seconds)
  -O, --set-recording-signal-threshold <number>   set recording signal threshold (seconds)
  -o, --set-recording-silence-threshold <number>  set recording silence threshold (seconds)
  -U, --udp                                       connect via UDP instead of TCP
  -a, --address <string>                          address of the butt instance to be controlled (default: "127.0.0.1")
  -p, --port <number>                             port of the butt instance to be controlled (default: 1256)
  -h, --help                                      display help for command

Javascript API

In your NodeJS application, you can use the buttjs module to access the butt instance.

let ButtClient = require("buttjs");
let host = "127.0.0.1"; // replace with actual IP
let port = 1256; // replace with actual port
let client = new ButtClient(host, port);

The following methods are available:

client.startStreaming(callback);
client.stopStreaming(callback);
client.startRecording(callback);
client.stopRecording(callback);
client.splitRecording(callback);
client.quit(callback);
client.updateSongName(song, callback);
client.setStreamingSignalThreshold(threshold, callback);
client.setStreamingSilenceThreshold(threshold, callback);
client.setRecordingSignalThreshold(threshold, callback);
client.setRecordingSilenceThreshold(threshold, callback);
client.getStatus(statusCallback);

Callback functions are called with the following arguments: error and status.

Example callback:

let callback = function (err, _) {
  if (!err) {
    // success
  } else {
    console.error(err);
  }
};

Example status callback:

let statusCallback = function (err, status) {
  if (!err) {
    if (status) {
      console.log(status);
    } else {
      console.error("No status received.");
    }
  } else {
    console.error(err);
  }
};

On success, the above callback will print the status object as follows:

{
  connected: false,
  connecting: false,
  recording: false,
  signalDetected: true,
  silenceDetected: false,
  volumeLeft: -26,
  volumeRight: -26,
  streamSeconds: 0,
  streamKByte: 0,
  recordSeconds: 0,
  recordKByte: 0,
  song: '',
  recPath: ''
}

Debugging

buttjs supports debug module for logging. If the DEBUG environment variable is set to *, or if it includes the name of the package (buttjs), debug logging will be enabled.

Author

Hossam Hammady: [email protected]

License

MIT License

Copyright (c) 2022 Hossam Hammady