Vue-Socket.io/src/index.js

import Mixin from './mixin';
import Logger from './logger';
import Listener from './listener';
import Emitter from './emitter';
import SocketIO from 'socket.io-client';

export default class VueSocketIO {
  /**
   * lets take all resource
   * @param io
   * @param vuex
   * @param debug
   * @param options
   */
  constructor({ connection, vuex, debug, options }) {
    Logger.debug = debug;
    this.io = this.connect(connection, options);
    this.emitter = new Emitter(vuex);
    this.listener = new Listener(this.io, this.emitter);
  }

  /**
   * Vue.js entry point
   * @param Vue
   */
  install(Vue) {
    Vue.prototype.$socket = this.io;
    Vue.prototype.$vueSocketIo = this;

    Vue.mixin(Mixin);

    Logger.info('Vue-Socket.io plugin enabled');
  }

  /**
   * registering SocketIO instance
   * @param connection
   * @param options
   */
  connect(connection, options) {
    if (connection && typeof connection === 'object') {
      Logger.info('Received socket.io-client instance');

      return connection;
    } else if (typeof connection === 'string') {
      Logger.info('Received connection string');

      return (this.io = SocketIO(connection, options));
    } else {
      throw new Error('Unsupported connection type');
    }
  }
}