A framework is a collection of components, libraries to be used for specific functionalities; they are usually extensible. Frameworks are also made up of reusable abstractions of code, that are usable through a well-defined Application Programming Interface (API).
It is not always necessary to use a framework, but it’s one of the tools that can help you develop software better and faster. Frameworks will abstract some complexities away from you and let you focus on writing the business logic for the software, thereby saving development time.
With a framework, you won’t have to reinvent the wheel, as they are usually considered batteries included. Frameworks come with some of the standard tools you would need when writing code; for example, ExpressJS comes with a JSON parser.
A framework sometimes also enforces a pattern or standard to follow, which makes it easier to write better code with cleaner file structures.
Companies Using Node.js
- Uber :
Uber has popularized the ‘on-demand economy model where quick accessibility is given prime importance. Uber is a prominent example of a sharing economy and after a huge success of this model, companies started uberization where mobile apps work as a mediator between service providers and clients. Uber has simplified transportation for every person and now offering more than just an on-demand taxi service. It offers services like vehicles for hire, food delivery, freight, couriers, package delivery, and vehicle rental services.
With over 110 million monthly active users worldwide, Uber is one of the largest providers in the gig economy. It carries out operations in over 900 cities worldwide.
Uber uses Node.js in its APIs, UberEats application, and almost much of its code written in Python, Node.js, Go, and Java. Uber’s API Gateway was one of the largest Node.js applications at Uber.
Hardly, there is a person who doesn’t know this name. Netflix is one of the amazingly popular over-the-top (OTT) platforms headquartered in California.
As of October 2020. Netflix had over 195 million paid subscriptions worldwide. It is one of the largest entertainment/media companies by market capitalization.
Netflix uses Node.js to handle high-volume streaming for millions of users. Architecture at Netflix is designed in a way that offers observability, debuggability, and availability. It is flexible, fast, and offers smooth performance — these are the key attractions of choosing Node.js at Netflix.
- Client-side execution of the logic brings faster user experiences. With the code running directly in the browser, the need for server calls is abstracted, hence a cut in loading times. Even with the presence of a server, the fact that JS is asynchronous means that it’s able to communicate with the server in the background without interrupting the user interaction taking place in the frontend.
- For developers, JS is easy to learn and fast to get into active development. Its syntax is easy and flexible for newcomers. It also simplifies the development of complex applications by enabling developers to simplify the app’s composition. The many frameworks & packages out there also ease the life of developers to some extent.