javascript / expert
Snippet
Graceful Shutdown Orchestration
A professional Node.js application must handle termination signals like `SIGTERM`. `server.close()` stops the server from accepting new connections but waits for existing ones to finish. A secondary timeout ensures the process eventually terminates even if some connections are stuck.
snippet.js
javascript
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
const http = require('http');const server = http.createServer((req, res) => res.end('OK'));process.on('SIGTERM', () => {console.log('SIGTERM received. Closing server...');server.close(() => {console.log('Server closed. Exiting process.');process.exit(0);});// Force exit after timeout if connections hangsetTimeout(() => {console.error('Forcing exit after timeout');process.exit(1);}, 10000);});
nodejs
Breakdown
1
server.close(() => { ... })
Wait for all active keep-alive connections to close before exiting.
2
setTimeout(..., 10000)
Safety hatch to prevent the process from hanging indefinitely.