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Node JS: Advanced Concepts

Node JS: Advanced Concepts

Get advanced with Node.Js! Learn caching with Redis, speed up through clustering, and add image upload with S3 and Node!

What you’ll learn

Node JS: Advanced Concepts

  • Master the Event Loop and understand each of its stages

  • Utilize Worker Threads and Clustering to improve the performance of Node servers dramatically

  • Speed up database queries with caching for MongoDB backed by Redis

  • Add automated browser testing to your Node server, complete with continuous integration pipeline setup

  • Apply scalable image and file upload to your app, utilizing AWS S3


  • Basic knowledge of Node, Express, and MongoDB

  • Strong knowledge of Javascript


Go beyond the basics of Node! This course will give you the skills to become a top Node engineer.

Query Caching with Redis?

You will learn it.

The Node Event Loop



Scalable File Upload


Of course!

This is a must-take course if you work with Node.

Node Internals:

Here’s one of the most common interview questions you’ll face when looking for a Node job: “

Can you e

xplain Node’s Event Loop?

There are two types of engineers: those who can describe the Event Loop and those who cannot! This course will ensure you are prepared to answer that most important question. Besides being critical for interviews, knowledge of the Event Loop will give you a better understanding of

how Node works internally

. Many engineers know not to ‘block’ the Event Loop, but they don’t necessarily understand why. You will be one of the engineers who can clearly articulate the

performance profile

of Node and its Event Loop.

Caching with Redis:

We’ll also supercharge the performance of database queries by implementing

caching backed by Redis.

No previous experience with Redis is required! Redis is an in-memory data store purpose-built for solving caching needs. By adding caching to your application, you can decrease the amount of time that any given request takes, improving the overall response time of your app.

File Upload:

Many resources online offer suggestions on how to handle file upload, but few show a solution that can

truly scale

. Hint: saving files directly on your server isn’t a scalable solution! Learn how to leverage


to implement file upload that can scale to millions of users with a few dozen lines of simple code. Plentiful discussions are included on security concerns with handling uploads, as well.

Continuous Integration Testing:

This is a must-have feature for any serious production app. We’ll first learn how to test huge swaths of our codebase with just a few lines of code using

Puppeteer and Jest.

After writing many effective tests, we’ll enable

continuous integration on Travis CI

, a popular – and free – CI platform. Testing can sometimes be boring, so we’ll use this section to brush up on some advanced Javascript techniques, including one of the only legitimate uses of

ES2015 Proxies

that you’ll ever see!

Here’s what we’ll learn:

  • Master the

    Node Event Loop

    – understand how Node executes your source code.
  • Understand the purpose of Node and how the code you write is eventually executed by

    C++ code in the

    V8 engine.

  • Add a huge boost to performance in your Node app through



    worker threads.

  • Turbocharge MongoDB queries by adding

    query caching

    backed by a lightning-fast


  • Scale your app to infinity with

    image and file upload

    backed by Amazon’s S3 file service.
  • Implement a

    continuous integration testing pipeline

    so you always know your project functions properly.
  • Think you know everything there is about managing

    cookies and sessions

    ? Well, you might, but learn even more!
  • Ensure your app works how you expect with automated browser testing using




  • Bonus – learn advanced JS techniques along the way, including where to use

    ES2015 proxies


I’ve built the course I would have wanted to take while learning Node. A course that explains the concepts and how they’re implemented in the best order for you to learn and deeply understand them.

Who this course is for:

  • Anyone who wants a deep mastery of Node
  • Engineers looking to understand the internals of Node
  • Programmers looking to improve Node’s performance

Last updated 3/2023

Language English [CC]

Node JS: Advanced Concepts

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