NodeJS Internals and Architecture
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.
Watch Online
| # | Title | Duration |
|---|---|---|
| 1 | Introduction | 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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