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How to connect socket.io to chat via express/koa?
The project structure looks like this:
package.json
{
"name": "vue-chat",
"version": "1.0.0",
"description": "A Vue.js project",
"author": "",
"private": true,
"scripts": {
"dev": "node build/dev-server.js",
"start": "node build/dev-server.js",
"build": "node build/build.js"
},
"dependencies": {
"axios": "^0.16.1",
"body-parser": "^1.17.1",
"koa": "^2.8.2",
"moment": "^2.18.1",
"multer": "^1.3.0",
"request": "^2.81.0",
"request-promise": "^4.2.0",
"socket.io": "^1.7.3",
"vue": "^2.5.2",
"vue-axios": "^2.0.2",
"vue-router": "^2.3.1",
"vuex": "^3.1.1"
},
"devDependencies": {
"autoprefixer": "^6.7.2",
"babel-core": "^6.22.1",
"babel-loader": "^6.2.10",
"babel-plugin-transform-runtime": "^6.22.0",
"babel-preset-env": "^1.3.2",
"babel-preset-stage-2": "^6.22.0",
"babel-register": "^6.22.0",
"chalk": "^1.1.3",
"connect-history-api-fallback": "^1.3.0",
"copy-webpack-plugin": "^4.0.1",
"css-loader": "^0.28.0",
"eventsource-polyfill": "^0.9.6",
"express": "^4.14.1",
"extract-text-webpack-plugin": "^2.0.0",
"file-loader": "^0.11.1",
"friendly-errors-webpack-plugin": "^1.1.3",
"html-webpack-plugin": "^2.28.0",
"http-proxy-middleware": "^0.17.3",
"node-sass": "^4.5.2",
"opn": "^4.0.2",
"optimize-css-assets-webpack-plugin": "^1.3.0",
"ora": "^1.2.0",
"rimraf": "^2.6.0",
"sass": "^0.5.0",
"sass-loader": "^6.0.3",
"semver": "^5.3.0",
"shelljs": "^0.7.6",
"url-loader": "^0.5.8",
"vue-loader": "^11.3.4",
"vue-style-loader": "^2.0.5",
"vue-template-compiler": "^2.2.6",
"webpack": "^3.6.0",
"webpack-bundle-analyzer": "^2.9.0",
"webpack-dev-middleware": "^1.10.0",
"webpack-hot-middleware": "^2.18.0",
"webpack-merge": "^4.1.0"
},
"engines": {
"node": ">= 6.0.0",
"npm": ">= 3.0.0"
},
"browserslist": [
"> 1%",
"last 2 versions",
"not ie <= 8"
]
}
/ Сервер (app.js)
Var app = require ('express') ();
Var server = требуется ('http'). Сервер (приложение);
Var io = require ('socket.io') (server);
server.listen (80);
App.get ('/', function (req, res) {
Res.sendfile (__dirname + '/index.html');
});
Io.on ('соединение', функция (сокет) {
Socket.emit ('news', {hello: 'world'});
Socket.on («мое другое событие», функция (данные) {
console.log (данные);
});
});
/ Клиент (index.html)
<script src = "/ socket.io/socket.io.js"> </ script>
<Script>
Var socket = io.connect ('http: // localhost');
Socket.on («новости», функция (данные) {
console.log (данные);
Socket.emit ('мое другое событие', {my: 'data'});
});
</ Script>
// see http://vuejs-templates.github.io/webpack for documentation.
var path = require('path')
module.exports = {
build: {
env: require('./prod.env'),
index: path.resolve(__dirname, '../dist/index.html'),
assetsRoot: path.resolve(__dirname, '../dist'),
assetsSubDirectory: 'static',
assetsPublicPath: './',
productionSourceMap: true,
// Gzip off by default as many popular static hosts such as
// Surge or Netlify already gzip all static assets for you.
// Before setting to `true`, make sure to:
// npm install --save-dev compression-webpack-plugin
productionGzip: false,
productionGzipExtensions: ['js', 'css'],
// Run the build command with an extra argument to
// View the bundle analyzer report after build finishes:
// `npm run build --report`
// Set to `true` or `false` to always turn it on or off
bundleAnalyzerReport: process.env.npm_config_report
},
dev: {
env: require('./dev.env'),
port: 8080,
autoOpenBrowser: true,
assetsSubDirectory: 'static',
assetsPublicPath: '/',
proxyTable: {},
// CSS Sourcemaps off by default because relative paths are "buggy"
// with this option, according to the CSS-Loader README
// (https://github.com/webpack/css-loader#sourcemaps)
// In our experience, they generally work as expected,
// just be aware of this issue when enabling this option.
cssSourceMap: false
}
}
require('./check-versions')()
var config = require('../config')
if (!process.env.NODE_ENV) {
process.env.NODE_ENV = JSON.parse(config.dev.env.NODE_ENV)
}
var opn = require('opn')
var path = require('path')
var express = require('express')
var webpack = require('webpack')
var proxyMiddleware = require('http-proxy-middleware')
var webpackConfig = require('./webpack.dev.conf')
// default port where dev server listens for incoming traffic
var port = process.env.PORT || config.dev.port
// automatically open browser, if not set will be false
var autoOpenBrowser = !!config.dev.autoOpenBrowser
// Define HTTP proxies to your custom API backend
// https://github.com/chimurai/http-proxy-middleware
var proxyTable = config.dev.proxyTable
var app = express();
const server = require('http').Server(app);
const io = require('socket.io')(server);
const http = require('http');
const https = require('https');
var bodyParser = require('body-parser');
// var multer = require('multer');
app.use(bodyParser.json()); // for parsing application/json
app.use(bodyParser.urlencoded({ extended: true })); // for parsing application/x-www-form-urlencoded
// app.use(multer()); // for parsing multipart/form-data
io.on('connection', (socket) => {
// Group chat
socket.on('sendGroupMsg', function (data) {
socket.broadcast.emit('receiveGroupMsg', data);
});
// Online
socket.on('online', name => {
socket.broadcast.emit('online', name)
});
})
var compiler = webpack(webpackConfig)
var devMiddleware = require('webpack-dev-middleware')(compiler, {
publicPath: webpackConfig.output.publicPath,
quiet: true
})
var hotMiddleware = require('webpack-hot-middleware')(compiler, {
log: () => {}
})
// force page reload when html-webpack-plugin template changes
compiler.plugin('compilation', function (compilation) {
compilation.plugin('html-webpack-plugin-after-emit', function (data, cb) {
hotMiddleware.publish({ action: 'reload' })
cb()
})
})
// proxy api requests
Object.keys(proxyTable).forEach(function (context) {
var options = proxyTable[context]
if (typeof options === 'string') {
options = { target: options }
}
app.use(proxyMiddleware(options.filter || context, options))
})
// handle fallback for HTML5 history API
app.use(require('connect-history-api-fallback')())
// serve webpack bundle output
app.use(devMiddleware)
// enable hot-reload and state-preserving
// compilation error display
app.use(hotMiddleware)
// serve pure static assets
var staticPath = path.posix.join(config.dev.assetsPublicPath, config.dev.assetsSubDirectory)
app.use(staticPath, express.static('./static'))
var uri = 'http://localhost:' + port
var _resolve
var readyPromise = new Promise(resolve => {
_resolve = resolve
})
console.log('> Starting dev server...')
devMiddleware.waitUntilValid(() => {
console.log('> Listening at ' + uri + '\n')
// when env is testing, don't need open it
if (autoOpenBrowser && process.env.NODE_ENV !== 'testing') {
opn(uri)
}
_resolve()
})
// var server = app.listen(port)
server.listen(8080);
module.exports = {
ready: readyPromise,
close: () => {
server.close()
}
}
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