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Events with Redux Spike
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| // Events with Redux Spike | |
| // ES6 | |
| //event name helpers | |
| var eventNameCounter = 0; | |
| const nextEventName = () => { | |
| eventNameCounter = eventNameCounter + 1; | |
| return "foo-".concat(eventNameCounter).concat(" "); | |
| } | |
| //Redux code (state and reducer) | |
| const initialState = { events: [], | |
| eventsCount: 0, | |
| sending: []}; | |
| const reducer = (state = initialState, action) => { | |
| switch (action.type){ | |
| case 'ADD_EVENT': | |
| console.log("adding event"); | |
| return Object.assign({}, state, { | |
| events: [...state.events, nextEventName()], | |
| eventsCount: state.eventsCount + 1 | |
| }); | |
| case 'SEND_EVENT': | |
| console.log("sending event"); | |
| return Object.assign({}, state, { | |
| events: [], | |
| eventsCount: 0, | |
| sending: state.events | |
| }); | |
| case 'RECEIVE_SUCCESS': | |
| console.log("receiving succeeded"); | |
| return Object.assign({}, state, { | |
| sending: [] | |
| }); | |
| case 'RECEIVE_FAIL': | |
| console.log("receiving failed"); | |
| return Object.assign({}, state, { | |
| events: [...state.sending, ...state.events], | |
| eventsCount: state.eventsCount + state.sending.length, | |
| sending: [] | |
| }); | |
| default: | |
| return state; | |
| } | |
| } | |
| const { createStore } = Redux; | |
| const store = createStore(reducer); | |
| // React specific code to dispatch/subscribe to app-state. | |
| const StateDisplay = ({ | |
| value, | |
| onAddEvent, | |
| onSendEvent, | |
| onReceiveSuccess, | |
| onReceiveFail | |
| }) => ( | |
| <div> | |
| <h3>{value[0]}</h3> | |
| <h3>{value[1]}</h3> | |
| <h3>{value[2]}</h3> | |
| <button onClick={onAddEvent}>Add Event</button> | |
| <button onClick={onSendEvent}>Send to Server</button> | |
| <button onClick={onReceiveSuccess}>Response 200</button> | |
| <button onClick={onReceiveFail}>Response non-200</button> | |
| </div> | |
| ); | |
| const render = () => { | |
| ReactDOM.render( | |
| <StateDisplay | |
| value={[ | |
| ["events: [", store.getState().events, "]"], | |
| ["eventsCount: ", store.getState().eventsCount], | |
| ["sending: [", store.getState().sending,"]"] | |
| ] | |
| } | |
| onAddEvent={() => | |
| store.dispatch({ | |
| type: 'ADD_EVENT' | |
| }) | |
| } | |
| onSendEvent={() => | |
| store.dispatch({ | |
| type: 'SEND_EVENT' | |
| }) | |
| } | |
| onReceiveSuccess={() => | |
| store.dispatch({ | |
| type: 'RECEIVE_SUCCESS' | |
| }) | |
| } | |
| onReceiveFail={() => | |
| store.dispatch({ | |
| type: 'RECEIVE_FAIL' | |
| }) | |
| } | |
| />, | |
| document.getElementById('root') | |
| ); | |
| }; | |
| store.subscribe(render); | |
| render(); | |
| // simulate activity | |
| const eventGenerator = () => { | |
| window.setInterval( () => { store.dispatch({ type: 'ADD_EVENT'}) }, 1500 ); | |
| }; | |
| const sendToServerRegularly = () => { | |
| let serverSend = () => { | |
| store.dispatch({ type: 'SEND_EVENT' }); | |
| if (Math.random() > 0.5) { | |
| window.setTimeout(() => { store.dispatch({ type: 'RECEIVE_SUCCESS' }) }, | |
| 1500); | |
| } else { | |
| window.setTimeout(() => { store.dispatch({ type: 'RECEIVE_FAIL' }) }, | |
| 2000); | |
| } | |
| }; | |
| window.setInterval(serverSend, 5000); | |
| }; | |
| const runApp = () => { | |
| eventGenerator(); | |
| sendToServerRegularly(); | |
| }; | |
| //runApp(); |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| <script src="https://wzrd.in/standalone/expect@latest"></script> | |
| <script src="https://wzrd.in/standalone/deep-freeze@latest"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/redux/3.0.4/redux.js"></script> | |
| <script src="https://fb.me/react-0.14.7.js"></script> | |
| <script src="https://fb.me/react-dom-0.14.7.js"></script> | |
| <script src="events.js"></script> | |
| </head> | |
| <body> | |
| <div id='root'></div> | |
| </body> | |
| </html> |
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