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Express.js | Overview

Express.js | Overview

Hello guys! welcome to a new tutorial series on Express.js. This tutorial will give readers good understanding of Express.js and after completing this tutorial, you will be able to build comparatively complex websites and back-ends for your mobile applications.

Express.js is a web application framework that provides you with a simple API to build websites, web applications and back-ends. Using Express.js, you need not worry about low level protocols, processes, etc.

What is Expess?

Express gives a minimal Interface to build our applications. It gives us the tools that are needed to build our app. It is flexible as there are many modules available on npm, which can be directly plugged into Express.

Express was developed by TJ Holowaychuk and is maintained by the node.js foundation and numerous open source contributors.

Why Express?

Unlike its competitors like Rails and Django, which have an opinionated way of building applications, Express has no "best way" to carry out something. it is extremely flexible and pluggable.


Pug (earlier called Jade) is a terse language for writing HTML templates. It -

  • Produces HTML
  • Supports dynamic code
  • Supports reusability (DRY)

It is one of the most well known template language used with Express.


MongoDB is an open-source, document database designed for ease of development and scaling. This database is also used for storing data.


Mongoose is a client API for Node.js which makes it easy to access our database from our Express application.

Alright guys! This is where we are going to be rounding up for this tutorial. In our next tutorial, we are going to be studying about Express.js Environment.

Feel free to ask your questions where necessary and we will attend to them as soon as possible. If this tutorial was helpful to you, you can use the share button to share this tutorial.

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Thanks for reading and bye for now.

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