NodeJS Internals and Architecture

21h 9m 56s
English
Paid

Course description

My favorite part of engineering is making complex systems transparent and understandable.

Node.js is one of the most popular runtimes for server development, yet it often remains a "black box" even for experienced developers. I myself have felt this many times.

This course is the result of months of work on dissecting the architecture and internal mechanisms of Node.js. It is designed for those engineers who cannot work with something opaque.

Read more about the course

This course is for you if you:

  • Want to understand what's happening "under the hood" of Node.js
  • Enjoy dissecting one line of code into hundreds of lines of implementation
  • Wonder why the behavior of a Node program is sometimes unpredictable
  • Want to know why a Node process can terminate - or not terminate
  • Are curious why Node sometimes takes a long time to start
  • Value cross-platform compatibility and want to learn how Node works on all OS

For instance, by knowing how the HTTP module is constructed, you will be able to write a server that handles more requests. Understanding the event loop and its phases will allow you to restructure code logic for improved performance and stability.

If your code "crashes" 1% of the time for reasons that aren't clear - this course will give you an understanding of how to make program behavior predictable. Not with chaotic "quick fixes," but through a deep understanding of the internal workings of Node.

The course will teach you to go in the same direction as Node, rather than "fighting" with its mechanisms.

The course program includes:

Node.js Architecture

  • Phases of the event loop and what happens in each of them
  • How promises work and why they are just "new type of callbacks"
  • Module loading and its impact on performance
  • The structure of Node packages and how it affects your code

Inside Node.js

  • How Node implements asynchronous I/O through libuv
  • Protocols and their implementation in Node
  • Streams and processes: how Node handles concurrency at the OS level

Optimization and Performance

  • Tips on speeding up code based on architectural understanding
  • How to identify "bottlenecks" and work with them
  • When and how to use C++ extensions if JavaScript is no longer sufficient

This course is designed for developers with an intermediate level of knowledge in Node.js who want to deepen their understanding of its architecture and increase their confidence in working with it.

It's advisable to have a general understanding of OS basics, although this is not strictly necessary.

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#1: Introduction

All Course Lessons (43)

#Lesson TitleDurationAccess
1
Introduction Demo
01:57
2
Who this course for?
03:06
3
Course Data
00:50
4
Course Outline
06:59
5
What do you need?
06:24
6
Node JS Architecture Intro
09:30
7
Interpreted Languages and V8
49:02
8
The Event Loop
24:14
9
The Main Module
19:39
10
Timers Phase
26:11
11
Pending Callbacks Phase
14:03
12
Idle, Prepare Phase
18:23
13
Poll Phase (Updated)
47:49
14
Check Phase
23:07
15
Close Callbacks Phase
24:08
16
Process.nextTick
16:46
17
How Promises work under the hood
22:44
18
Require, Import Event
34:12
19
Anatomy of Node Packages
32:35
20
When does Node terminate?
20:31
21
Node Internals Section Intro
06:42
22
libuv Overview
08:05
23
Asynchronous IO in the Operating System
29:35
24
Inside Node Network IO
43:36
25
Inside Node File IO
51:51
26
Inside Node HTTP
01:14:04
27
Inside Node HTTPS
01:00:56
28
Inside Node DNS
48:00
29
Inside Node TCP
48:37
30
Inside Node UDP
34:03
31
Inside Node Streams
01:03:12
32
Process vs Thread
01:00:38
33
Worker Threads
51:55
34
Child Process and Cluster
36:31
35
Optimization Section Intro
13:23
36
Node Performance
39:36
37
Debugging NodeJS
08:07
38
Capturing Node's Traffic
32:36
39
Request modules performance showdown
22:24
40
C++ Add-ons
39:22
41
Course Summary
08:39
42
Proxy vs Reverse Proxy
20:06
43
Memcachd and NodeJS
01:05:48

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