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db.js
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db.js
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const mongoose = require('mongoose');
require('dotenv').config();
const uri = `mongodb+srv://${process.env.DB_USER}:${process.env.DB_PASS}@cluster0.ktgpsav.mongodb.net/?retryWrites=true&w=majority`;
mongoose.connect(uri, {
useNewUrlParser: true,
useUnifiedTopology: true,
dbName: 'avengers-web',
});
const connection = mongoose.connection;
connection.on('error', (err) => {
console.error('MongoDB connection error:', err.message);
process.exit(1);
});
connection.on('disconnected', () => {
console.warn('MongoDB disconnected. Reconnecting...');
setTimeout(() => {
mongoose.connect(uri, {
useNewUrlParser: true,
useUnifiedTopology: true,
dbName: 'avengers-web',
});
}, 5000);
});
connection.once('open', () => {
console.log('MongoDB database connection established successfully!');
});
process.on('SIGINT', () => {
connection.close(() => {
console.log('MongoDB connection closed due to application termination!');
process.exit(0);
});
});
module.exports = mongoose;