MongoDB Connection

Overview

The mongodb.js file provides a function to connect to a MongoDB database using the mongoose library. It also includes logging to help with debugging and monitoring the connection status.

Dependencies

• mongoose: A popular Object Data Modeling (ODM) library for MongoDB and Node.js.
• ./logger.js: The custom logger module.

connectToMongoDB()

This asynchronous function attempts to connect to the MongoDB database using the connection URL provided in the DB_MONGO_URL environment variable.

Functionality

1. Enable Mongoose Debugging: It enables Mongoose's debug mode, which logs all the operations Mongoose sends to MongoDB to the console.
2. Log Connection URL: It logs the MongoDB connection URL to the console.
3. Connect to MongoDB: It uses mongoose.connect() to establish a connection to the database.
4. Success Message: If the connection is successful, it prints an ASCII art message to the console.
5. Error Handling: If the connection fails, it logs the error to the console and to the custom logger. It then re-throws the error, allowing the calling function to handle it.

Usage

import { connectToMongoDB } from "./mongodb.js";

async function startApp() {
    try {
        await connectToMongoDB();
        // Start the rest of the application
    } catch (error) {
        // Handle the error, e.g., exit the process
        process.exit(1);
    }
}

startApp();

Exports

• connectToMongoDB: The function to connect to the MongoDB database.