• views: 131
• date: 12 May 2025
• posted by: AD-TEAM

Understand how Node works inside out to improve performance, efficiency and consistency of your backend applications

What you'll learn

NodeJS Architecture

NodeJS protocols, file and socket programming internals

Optimize Node JS

Writing efficient code

Multi-threaded Node

Requirements

Backend and Operating Systems Fundamentals

Description

My favorite thing in software engineering is the art of making it transparent.Node is one of the most popular runtimes used on backend engineering yet I feel it is the least understood. I surely felt this way at times.I spent months working on a course to demystify NodeJS Internals and Architecture and distilled this in this comprehensive course.I built this course is for the engineers who can't stand working with something opaque.They love to understand what is running behind the engine.They enjoy tearing apart 1 the line of code into its original 1000 lines.They question why is the output of a Node program is unpredictable.They want to know when does the Node process exit.They want to know why Node takes so long to start in some cases.They appreciate how Node works on all operating systems and would like to know how it does that.For example by understanding the internals of HTTP module, you can write a backend in Node that accepts and process more requests. Every line of code you write you would think of how and when Node will process it.By understanding the event loop and the different stages you can tune and re-order your code to achieve best performance and even consistent result.Ever wrote a program in Node that fails 1% of the time while succeeds 99%? Understanding Node architecture helps you make your program predicable. As opposed to adding workaround because you don't understand. We all did that.It is all about removing blockage and letting the main loop phases "breath". When we build software the problem is we often go against the grain. Understanding where the friction is in Node allow you to work with it as oppose to against it.In this course I cover the following- NodeJS ArchitectureI cover the various phases in the event loop and what exactly happens in each phase, how promises are just callbacks, how and when modules are loaded and their effect on performance, Node packages anatomy and more- Node InternalsThis is where we go one layer deeper, how Node truly achieves asynchronous IO with libuv, and how each protocol in node is implemented. How concurrent node works on both user level threads and process level.- Node Optimization and PerformanceNow that we understand the internals and architecture of Node, this is where we discuss tips how to make the code runs more efficiently and more performance. And only when we exhaust all other avenues Node provides ways to extend it with C++ add-ons where jаvascript just can't no longer hold.This course is for intermediate students who are familiar with Node and want to understand how it works. While not required, I recommend taking the fundamentals of operating system course as a prerequisite of this course.

Overview

Section 1: Introduction

Lecture 1 Introduction

Lecture 2 Who this course for?

Lecture 3 Course Data

Lecture 4 Course Outline

Lecture 5 What do you need?

Section 2: NodeJS Architecture

Lecture 6 Node JS Architecture Intro

Lecture 7 Interrupted Language and V8

Lecture 8 The Event Loop

Lecture 9 The Main Module

Lecture 10 Pending Callbacks Phase

Lecture 11 Timers Phase

Lecture 12 Idle, Prepare Phase

Lecture 13 Poll Phase

Lecture 14 Check Phase

Lecture 15 Close Callbacks Phase

Lecture 16 Process.nextTick

Lecture 17 How Promises work under the hood

Lecture 18 Require, Import Event

Lecture 19 Anatomy of Node Packages

Lecture 20 When does Node terminate?

Section 3: Node Internals

Lecture 21 Node Internals Section Intro

Lecture 22 libuv Overview

Lecture 23 Asynchronous IO in the Operating System

Lecture 24 Inside Node Network IO

Lecture 25 Inside Node File IO

Lecture 26 Inside Node HTTP

Lecture 27 Inside Node HTTPS

Lecture 28 Inside Node DNS

Lecture 29 Inside Node TCP

Lecture 30 Inside Node UDP

Lecture 31 Inside Node Streams

Lecture 32 Process vs Thread

Lecture 33 Worker Threads

Lecture 34 Child Process and Cluster

Section 4: Optimization and performance tips

Lecture 35 Optimization Section Intro

Lecture 36 Node Performance

Lecture 37 Debugging NodeJS

Lecture 38 Capturing Node's Traffic

Lecture 39 Request modules performance showdown

Lecture 40 C++ Add-ons

Lecture 41 Course Summary

Intermediate level software engineers who want to understand Node internals,Backend engineers who want to run Node efficiently




   
   
   

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