Cosmos DB supports various programming languages, such as Java, .NET, Python, and Node.js. Node.js is not actually a programming language but a runtime framework for JavaScript.

I am a Node.js enthusiast and more comfortable with the development of a backend system using Node.js, so we are going to do the Cosmos DB integration with Node.js in this chapter, as well as in the next chapters.

Here are the topics that we are going to cover in this chapter:

• Node.js setup
• Cosmos DB MongoDB setup
• Connecting Cosmos DB with the Node.js app
• Exploring app data in Cosmos DB
• Integrating the DocumentDB API with Node.js
• Integrating the Table API with Node.js
• Integrating the Graph API with Node.js

So, let's begin.