jingtum-lib/src/wswrapper.js

jingtum lib

"use strict";
const events_1 = require("events");
/**
 * Provides `EventEmitter` interface for native browser `WebSocket`,
 * same, as `ws` package provides.
 */
class WSWrapper extends events_1.EventEmitter {
  constructor(url, _protocols, _websocketOptions) {
    _protocols
    _websocketOptions
    super()
    this.setMaxListeners(Infinity);
    this._ws = new WebSocket(url);
    this._ws.onclose = () => {
      this.emit("close")
    }
    this._ws.onopen = () => {
      this.emit("open")
    }
    this._ws.onerror = error => {
      this.emit("error", error)
    }
    this._ws.onmessage = message => {
      this.emit("message", message.data)
    }
  }
  close() {
    if (this.readyState === 1) {
      this._ws.close()
    }
  }
  send(message) {
    this._ws.send(message)
  }
  get readyState() {
    return this._ws.readyState
  }
}
WSWrapper.CONNECTING = 0;
WSWrapper.OPEN = 1;
WSWrapper.CLOSING = 2;
WSWrapper.CLOSED = 3;
module.exports = WSWrapper;