🚀 Node.js MongoDB – Create Database

We’ll cover both MongoDB native driver and Mongoose.

✅ 1. Install MongoDB Driver or Mongoose

✅ 2. Using Native MongoDB Driver

Key points:

• client.db("mydb") references the database.

• Database doesn’t exist until you insert a document.

• Collection users is also created automatically when inserting.

✅ 3. Using Mongoose

Key points:

• mongoose.connect("mongodb://localhost:27017/mydb") references the database.

• Database mydb is created automatically when the first document is inserted.

• Collections are created automatically by Mongoose models.

✅ 4. Tips & Best Practices

• MongoDB databases are lazy-created — they exist only after inserting data.

• Always define schemas with Mongoose for consistent documents.

• Use meaningful database and collection names.

• For production, use connection pooling to improve performance.