rxjs-websocket-3.js

import { tap } from 'rxjs/operators';
import { webSocket } from 'rxjs/webSocket';

const wsSubjec2$ = webSocket({
  url: 'wss://www.gasnow.org/ws/gasprice',
});

const subA = wsSubject$
    .pipe(
      tap(data => console.log(data))
    )
    .subscribe();

const subB = wsSubject$
    .pipe(
      tap(d => console.log(d))
    )
    .subscribe();