NodeJS is an asynchronous event-driven JavaScript runtime which is open source and cross-platform. It is the fastest growing open source project with more than a billion downloads. It is becoming increasingly popular owing to its traits of being extremely lightweight and flexible for building scalable web apps and APIs. It has found applications in web apps of Netflix, PayPal, LinkedIn and Uber, to name a few. Through this course we hope to introduce you to this powerful tool, get you started on building APIs so you hit the ground running as you begin your backend web development journey.