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server2.js
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server2.js
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const http = require('http');
const handler = (req, res) => {
let data = '';
req.on('data', chunk => data += chunk);
req.on('end', () => {
if (data) data = JSON.parse(data);
if (req.url === '/') {
res.writeHead(200);
res.end('Hello world!');
} else {
res.writeHead(404);
res.end('Not found', 'utf-8');
}
});
}
const server = http.createServer(handler);
const clientMap = {}
const io = require('socket.io')(server);
io.on('connect', sock => {
sock.on('subscribe', data => {
if(data === 'neworder') {
if(!clientMap['neworder']) clientMap['neworder'] = [];
clientMap['neworder'].push(sock.id);
}
});
sock.on('neworder', data => {
for(let id of clientMap['neworder']) {
sock.to(id).emit('neworder', data);
}
});
sock.on('disconnect', () => {
for(let t in clientMap) {
if(clientMap[t].includes(sock.id)) clientMap[t] = clientMap[t].filter(f => f !== sock.id);
}
});
});
server.listen(10100);