JS Bin // source http://jsbin.com/wugayu

<!DOCTYPE html>
<html>
<head>
  <script src="https://unpkg.com/react@15.2.1/dist/react.min.js"></script>
  <script src="https://unpkg.com/react-dom@15.2.1/dist/react-dom.min.js"></script>
  <script src="https://unpkg.com/redux@^3.5.2/dist/redux.min.js"></script>
  <script src="https://unpkg.com/react-redux@4.4.5/dist/react-redux.min.js"></script>
  <script src="https://unpkg.com/@reactivex/rxjs/dist/global/rx.js"></script>
  <script src="https://unpkg.com/redux-observable/dist/redux-observable.min.js"></script>
  <meta charset="utf-8">
  <title>JS Bin</title>
</head>
<body>
  <div id="root"></div>
<script id="jsbin-javascript">
/**
 * IMPORTANT ***************************************************************
 * 
 * This example uses the global version of RxJS that includes ALL operators.
 * Inside your app, you will likely need to import the operators you use or
 * import all of them in your index.js entry file.
 * 
 * Learn more about this: https://goo.gl/4ZlYeC
 */

'use strict';

console.clear();

// actions
var BING = 'BING';
var BONG = 'BONG';
var INCRIMENT = 'INCRIMENT';

// action creators
var bing = function bing() {
  return { type: BING };
};
var bong = function bong() {
  return { type: BONG };
};

// reducer
var bingReducer = function bingReducer(state, action) {
  if (state === undefined) state = 0;

switch (action.type) {
    case INCRIMENT:
      return state + 1;
    default:
      return state;
  }
};

// epic
var bingEpic = function bingEpic(action$) {
  return action$.ofType('BING').switchMap(function () {
    return Rx.Observable.interval(100).mapTo({ type: INCRIMENT }).takeUntil(action$.ofType(BONG));
  });
};

// components/App.js

var _ReactRedux = ReactRedux;
var connect = _ReactRedux.connect;

App = connect(function (state) {
  return { value: state };
}, { bing: bing, bong: bong })(App);

// redux/configureStore.js
var _ReactRedux2 = ReactRedux;
var Provider = _ReactRedux2.Provider;
var _Redux = Redux;
var createStore = _Redux.createStore;
var applyMiddleware = _Redux.applyMiddleware;
var _ReduxObservable = ReduxObservable;
var createEpicMiddleware = _ReduxObservable.createEpicMiddleware;

var epicMiddleware = createEpicMiddleware(bingEpic);

var store = createStore(bingReducer, applyMiddleware(epicMiddleware));

// index.js
ReactDOM.render(React.createElement(
  Provider,
  { store: store },
  React.createElement(App, null)
), document.getElementById('root'));
</script>

console.clear();

// actions
const BING = 'BING'
const BONG = 'BONG'
const INCRIMENT = 'INCRIMENT'

// action creators
const bing = () => ({ type: BING });
const bong = () => ({ type: BONG });

// reducer
const bingReducer = (state = 0, action) => {
  switch (action.type) {
    case INCRIMENT:
      return state + 1
    default:
      return state
  }
};

// epic
const bingEpic = action$ => 
  action$.ofType('BING')
  .switchMap(() => {
    return Rx.Observable.interval(100)
    .mapTo({ type: INCRIMENT })
    .takeUntil(action$.ofType(BONG))
  })

// components/App.js

const { connect } = ReactRedux;

let App = ({ value, bing, bong }) => (
  <div>
    <h1>Value: {value}</h1>
    <button onClick={bing}>BING/start</button>
      <button onClick={bong}>BONG/stop</button>
  </div>
);

App = connect(
  state => ({ value: state }),
  { bing, bong }
)(App);

// redux/configureStore.js
const { Provider } = ReactRedux;
const { createStore, applyMiddleware } = Redux;
const { createEpicMiddleware } = ReduxObservable;

const epicMiddleware = createEpicMiddleware(bingEpic);

const store = createStore(
  bingReducer,
  applyMiddleware(epicMiddleware)
);

// index.js
ReactDOM.render(
  <Provider store={store}>
    <App />
  </Provider>,
  document.getElementById('root')
);
</script></body>
</html>

Updated missing url https://unpkg.com/@reactivex/rxjs/dist/global/Rx.js to https://unpkg.com/@reactivex/rxjs/dist/global/rx.js

https://unpkg.com/react@15.2.1/dist/react.min.js

https://unpkg.com/react-dom@15.2.1/dist/react-dom.min.js

https://unpkg.com/redux@^3.5.2/dist/redux.min.js

https://unpkg.com/react-redux@4.4.5/dist/react-redux.min.js

https://unpkg.com/@reactivex/rxjs/dist/global/Rx.js

https://unpkg.com/redux-observable/dist/redux-observable.min.js