network request with rxjs

rxGet.js

import Rx from 'rxjs';
import axios from 'axios';

const url = 'https://api.github.com/users/SeanPlusPlus'
const requestStream = Rx.Observable.of(url);
const responseStream = requestStream
  .flatMap(requestUrl =>
    Rx.Observable.fromPromise(axios.get(requestUrl))
  );
responseStream.subscribe(response => {
  console.log(response.data);
});