Node.js, MongoDB, and AngularJS Web Development

Creating a Database

Just as with the MongoDB shell, there is not an explicit method for creating databases. Databases are created automatically whenever a collection or document is added to them. Therefore, to create a new database, all you need to do is use the db() method on the Db object provided by the MongoClient connection to create a new Db object instance. Then you call createCollection() on the new Db object instance to create the database.

The following code shows an example of creating a new database named newDB after connecting to the server:

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var MongoClient = require('mongodb').MongoClient;MongoClient.connect("mongodb://localhost/", function(err, db) {  var newDB = db.db("newDB");  newDB.createCollection("newColleciton", ...