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Close process, Graceful shutdown, medium
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const express = require('express'); | |
const mongoose = require('mongoose'); | |
const app = express(); | |
app.use(express.urlencoded({extended: true})); | |
app.use(express.json()); | |
mongoose.connect('mongodb://localhost/test', (err) => { | |
if (err) throw err; | |
console.log('Mongoose connected!'); | |
}); | |
const User = mongoose.model('User', { name: String }); | |
app.post('/user', async (req, res) => { | |
try { | |
const user = new User({ name: req.body.username }); | |
await user.save(); | |
res.send('Success!').status(201); | |
} catch (err) { | |
res.send(err.message).status(500); | |
} | |
}); | |
const server = app.listen(3000, () => console.log('Example app listening on port 3000!')); | |
process.on('SIGTERM', () => { | |
console.info('SIGTERM signal received.'); | |
console.log('Closing http server.'); | |
server.close(() => { | |
console.log('Http server closed.'); | |
// boolean means [force], see in mongoose doc | |
mongoose.connection.close(false, () => { | |
console.log('MongoDb connection closed.'); | |
process.exit(0); | |
}); | |
}); | |
}); |
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