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next.js/examples/with-socket.io/server.js

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const app = require('express')()
const server = require('http').Server(app)
const io = require('socket.io')(server)
const next = require('next')
const port = parseInt(process.env.PORT, 10) || 3000
const dev = process.env.NODE_ENV !== 'production'
const nextApp = next({ dev })
const nextHandler = nextApp.getRequestHandler()
// fake DB
const messages = {
chat1: [],
chat2: []
}
// socket.io server
io.on('connection', socket => {
socket.on('message.chat1', data => {
messages['chat1'].push(data)
socket.broadcast.emit('message.chat1', data)
})
socket.on('message.chat2', data => {
messages['chat2'].push(data)
socket.broadcast.emit('message.chat2', data)
})
})
nextApp.prepare().then(() => {
app.get('/messages/:chat', (req, res) => {
res.json(messages[req.params.chat])
})
app.get('*', (req, res) => {
return nextHandler(req, res)
})
server.listen(port, err => {
if (err) throw err
console.log(`> Ready on http://localhost:${port}`)
})
})