Cordova WebSocket Server Plugin

Usage no npm install needed!

<script type="module">
  import cordovaPluginWebsocketServer from '';


Cordova WebSocket Server Plugin

This plugin allows you to run a single, lightweight, barebone WebSocket Server from applications developed using PhoneGap/Cordova 3.0 or newer.

This is not a background service. When the cordova view is destroyed/terminated, the server is stopped.



In your application project directory:

cordova plugin add cordova-plugin-websocket-server


var wsserver = cordova.plugins.wsserver;

start(port, options, success, failure)

Starts the server on the given port (0 means any free port). Binds to all available network interfaces ('').

 wsserver.start(port, {
    // WebSocket Server handlers
    'onFailure' :  function(addr, port, reason) {
        console.log('Stopped listening on %s:%d. Reason: %s', addr, port, reason);
    // WebSocket Connection handlers
    'onOpen' : function(conn) {
        /* conn: {
         'uuid' : '8e176b14-a1af-70a7-3e3d-8b341977a16e',
         'remoteAddr' : '',
         'httpFields' : {...},
         'resource' : '/?param1=value1&param2=value2'
         } */
        console.log('A user connected from %s', conn.remoteAddr);
    'onMessage' : function(conn, msg) {
        console.log(conn, msg); // msg can be a String (text message) or ArrayBuffer (binary message)
    'onClose' : function(conn, code, reason, wasClean) {
        console.log('A user disconnected from %s', conn.remoteAddr);
    // Other options
    'origins' : [ 'file://' ], // validates the 'Origin' HTTP Header.
    'protocols' : [ 'my-protocol-v1', 'my-protocol-v2' ], // validates the 'Sec-WebSocket-Protocol' HTTP Header.
    'tcpNoDelay' : true // disables Nagle's algorithm.
}, function onStart(addr, port) {
    console.log('Listening on %s:%d', addr, port);
}, function onDidNotStart(reason) {
    console.log('Did not start. Reason: %s', reason);


Stops the server.

wsserver.stop(function onStop(addr, port) {
    console.log('Stopped listening on %s:%d', addr, port);

send(conn, msg)

Sends a message to the given connection.

// provide a String to send a text frame (websocket opcode 1)
wsserver.send({'uuid':'8e176b14-a1af-70a7-3e3d-8b341977a16e'}, 'hello friend!');

// provide a TypedArray / ArrayBuffer to send a binary frame (websocket opcode 2)
wsserver.send({'uuid':'8e176b14-a1af-70a7-3e3d-8b341977a16e'}, Uint8Array.from([1, 2, 3, 4]));

close(conn, code, reason)

Closes a websocket connection. Close event code and reason are optional.

wsserver.close({'uuid':'8e176b14-a1af-70a7-3e3d-8b341977a16e'}, 4000, 'my reason');


Returns the non-loopback IPv4 and IPv6 network interfaces.

wsserver.getInterfaces(function(result) {
    for (var interface in result) {
        if (result.hasOwnProperty(interface)) {
            console.log('interface', interface);
            console.log('ipv4', result[interface].ipv4Addresses);
            console.log('ipv6', result[interface].ipv6Addresses);



It depends on the TooTallNate WebSocket Server.


It depends on the couchbasedeps PocketSocket Server forked from the zwopple PocketSocket Server.


The MIT License