How to use MongoDB Native Driver In NodeJS
The MongoDB Native Driver provides low-level access to MongoDB, offering more control over the connection. In this method, we utilize MongoClient for connection establishment. When the ‘close’ event triggers on the MongoDB client instance, indicating an unexpected disconnection from the MongoDB server, the application initiates a reconnection attempt by invoking the connect function. This function employs await client.connect() to establish a new connection to the MongoDB server.
const { MongoClient } = require('mongodb');
const uri = 'mongodb://localhost:27017';
const client = new MongoClient(uri, {
useNewUrlParser: true,
useUnifiedTopology: true,
});
async function connect() {
try {
await client.connect();
console.log('Connected to MongoDB');
} catch (err) {
console.error('Failed to connect', err);
}
}
client.on('close', () => {
console.log('MongoDB connection lost. Reconnecting...');
connect();
});
connect();
How to Handle Lost Connection to Mongodb from Nodejs?
Handling lost connections to MongoDB in a Node.js application is crucial for maintaining application reliability and data integrity. However, network issues, database server crashes, or other unexpected events can cause the connection to be lost. This article will guide you through different approaches to handle them, and provide a step-by-step guide to creating a robust application that gracefully manages lost connections.
These are the following approaches:
Table of Content
- Using Mongoose
- Using MongoDB Native Driver
- Using Event Listeners
- Using a Function for Retry Logic
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