websocket-event-wrapper v1.1.1

websocket-event-wrapper

Simple to setup event-based event wrapper for server-side WebSockets.

Install

$ npm install websocket-event-wrapper

Usage

server.js

https://github.com/websockets/ws

const WebSocketEventWrapper = require('websocket-event-wrapper');

const server = new WebSocketEventWrapper({
    port: 8080,
    onConnect: () => console.log('connected')
});

server.addEventListener((message, client) => {
    // Broadcast a string to all connections
    server.broadcast('string');
    // Broadcast the result of a function call to all connections
    server.broadcast(client => 'function');
    // Broadcast the result of an asynchronous function call to all connections
    server.broadcast(async client => {
        await new Promise(resolve => setTimeout(resolve, 1000));

        return 'async function';
    });
});

server.addEventListener((message, client) => {
    // Send message to a specific group of connections
    server.broadcast('string', client => client.roomId === 1);
});

client.js

https://developer.mozilla.org/en-US/docs/Web/API/WebSocket

const socket = new WebSocket('ws://localhost:8080');

socket.addEventListener('open', () => {
    // Send a message to the server
    socket.send('Hello Server!');
});

socket.addEventListener('message', ({ data }) => {
    // Output all messages from server
    console.log('Message from server ', data);
});