Created
August 20, 2016 00:18
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"Remote" model for Cycle.js
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| import {run} from '@cycle/xstream-run' | |
| import {makeDOMDriver, div, button} from '@cycle/dom' | |
| import xs from 'xstream' | |
| function main (sources) { | |
| // Intent | |
| const incAction$ = sources.DOM | |
| .select('.inc').events('click') | |
| .mapTo({type: 'INC'}) | |
| const decAction$ = sources.DOM | |
| .select('.dec').events('click') | |
| .mapTo({type: 'DEC'}) | |
| const action$ = xs.merge( | |
| incAction$, | |
| decAction$ | |
| ) | |
| // View | |
| const vtree$ = sources.ws | |
| .map(state => | |
| div([ | |
| button('.inc', '+1'), | |
| button('.dec', '-1'), | |
| div(`Count: ${state.count}`) | |
| ]) | |
| ) | |
| const sinks = { | |
| DOM: vtree$, | |
| ws: action$, | |
| } | |
| return sinks | |
| } | |
| function makeWSDriver (ws) { | |
| return function driver (msg$) { | |
| msg$.addListener({ | |
| next: msg => { | |
| ws.send(JSON.stringify(msg)) | |
| }, | |
| error: console.error.bind(console), | |
| complete: () => console.log('Closed') | |
| }) | |
| return xs.create({ | |
| start: listener => { | |
| ws.onmessage = msg => listener.next(JSON.parse(msg.data)) | |
| }, | |
| stop: () => {} | |
| }) | |
| } | |
| } | |
| run(main, { | |
| DOM: makeDOMDriver('#app'), | |
| ws: makeWSDriver(new WebSocket('ws://localhost:8080')) | |
| }) |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <meta http-equiv="X-UA-Compatible" content="ie=edge"> | |
| <title>Remote model</title> | |
| </head> | |
| <body> | |
| <div id="app"></div> | |
| <script src="dist/bundle.js"></script> | |
| </body> | |
| </html> |
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| { | |
| "name": "remotemodel2", | |
| "version": "1.0.0", | |
| "description": "", | |
| "main": "index.js", | |
| "scripts": { | |
| "prebuild": "mkdirp dist", | |
| "build": "browserify src/client.js -d -t babelify --outfile dist/bundle.js", | |
| "start": "npm run build && babel-node src/server.js" | |
| }, | |
| "author": "Geovani de Souza <[email protected]>", | |
| "license": "ISC", | |
| "dependencies": { | |
| "@cycle/dom": "^12.1.0", | |
| "@cycle/xstream-run": "^3.0.4", | |
| "xstream": "^5.3.6", | |
| "ws": "^1.1.1" | |
| }, | |
| "devDependencies": { | |
| "babel-cli": "^6.11.4", | |
| "babel-preset-es2015": "^6.13.2", | |
| "babel-register": "^6.11.6", | |
| "babelify": "^7.3.0", | |
| "browserify": "^13.1.0", | |
| "mkdirp": "^0.5.1" | |
| } | |
| } |
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| import Cycle from '@cycle/xstream-run' | |
| import {Server as WebSocketServer} from 'ws' | |
| import xs from 'xstream' | |
| function backend (sources) { | |
| // Model | |
| const state$ = sources.ws | |
| .debug('action$') | |
| .map(action => { | |
| switch (action.type) { | |
| case 'INC': return count => count + 1 | |
| case 'DEC': return count => count - 1 | |
| default: return count => count | |
| } | |
| }) | |
| .fold((count, reducer) => reducer(count), 0) | |
| .map(count => ({count})) | |
| .debug('state$') | |
| const sinks = { | |
| ws: state$ | |
| } | |
| return sinks | |
| } | |
| function makeWSDriver (ws) { | |
| return function driver (msg$) { | |
| msg$.addListener({ | |
| next: msg => { | |
| ws.send(JSON.stringify(msg)) | |
| }, | |
| error: console.error.bind(console), | |
| complete: () => console.log('Closed') | |
| }) | |
| return xs.create({ | |
| start: listener => { | |
| ws.on('message', msg => listener.next(JSON.parse(msg))) | |
| }, | |
| stop: () => {} | |
| }) | |
| } | |
| } | |
| const wss = new WebSocketServer({port: 8080}) | |
| wss.on('connection', ws => { | |
| const dispose = Cycle.run(backend, { | |
| ws: makeWSDriver(ws) | |
| }) | |
| ws.on('close', dispose) | |
| }) | |
| console.log('Ready') |
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