MongoDB is one of the most popular NoSQL databases. You need to create a MongoDB database and collection and generate the access keys.
Open your Azure portal and create a new MongoDB instance. Refer to the following screenshot for reference:
![](http://images-20200215.ebookreading.net/11/1/1/9781788476171/9781788476171__learning-azure-cosmos__9781788476171__assets__f18ae269-218e-46ab-869d-d1bd238324d8.png)
Click on the Create button and a new MongoDB API will be created. Next, we need to connect our Node.js app with MongoDB API of Cosmos DB.