Master Building CLI Tools & APIs in Node.js
The ultimate engineering program for building production-grade apps in Node.js you will actually ship.
The Most Efficient Way to Learn Node.js
Our program gives you a step-by-step roadmap that eliminates guesswork by teaching you the right skill at the right time. No fluff, no filler.
Build Real Apps With Node.js
From CLI utilities to games, converters, APIs, and more, you'll build complete Node.js apps that process real input, produce real output, and behave like tools you could actually ship.
Your Learning Journey
The program is composed of 12 modules, 113 lessons, and 29 projects designed to teach you everything you need to know from CLI to API in Node.js.
Module 1
𧱠JavaScript Fundamentals I
Learn the core building blocks of JavaScript, including values, variables, conditions, and basic debugging, so you can write small scripts that run correctly in Node.js and produce predictable output.
Module 2
π JavaScript Fundamentals II
Learn how to repeat and reuse logic with loops and functions, then apply it to build real scripts that generate output from dynamic inputs instead of hard-coded values.
Module 3
π Keyed Data Structures
Learn how to model real-world entities with object literals, access and update properties safely, and reshape data using destructuring and merges, which is essential for handling API payloads and configuration objects.
Module 4
π’ Indexed Data Structures
Learn how to work with arrays as ordered lists, modify and transform collections, and use common operations like sorting, filtering, mapping, and reducing, which you will use constantly when processing input data and API results.
Module 5
ποΈ Object-Oriented Programming
Learn how to structure programs with classes, instances, methods, and inheritance, then use controlled error throwing to build reusable components that behave predictably as your programs grow.
Module 6
β³ Asynchronous Execution in Node.js
Learn how Node.js avoids blocking using the event loop, timers, promises, and async/await, so you can write code that handles work that completes later, such as I/O and network operations, without losing control of errors.
Module 7
β¨οΈ Write CLI Apps in Node.js
Learn how to ship real CLI tools by creating robust entrypoints, choosing a module system, parsing arguments, and loading configuration from the environment so your commands behave like professional developer utilities.
Module 8
π Handle Files & Data in Node.js
Learn the Node.js primitives for handling real data, including files, directories, events, buffers, and streams, then use stdin and stdout to build interactive programs and pipelines that scale beyond small in-memory scripts.
Module 9
π¦ The Node Package Manager
Learn how to use npm to manage dependencies, run and publish packages, automate tasks with scripts, and control versions safely so your Node.js projects stay reproducible and easy to maintain.
Module 10
π Craft APIs With Express
Learn how to build production-style HTTP APIs with Express, including routing, middleware, parsing requests, validation, consistent errors, and documentation, plus the web fundamentals like HTTP, REST, and cURL needed to design predictable endpoints.
Module 11
ποΈ Connect to Databases With Sequelize
Learn how to model and query relational data with Sequelize by defining models, filtering and aggregating records, creating relationships, and loading associated data so your APIs can persist and retrieve real application state.
Module 12
𧱠The Three-Layer Architecture
Learn how to structure an Express API with clear boundaries using router, service, and data-access layers, then centralize configuration and error handling to build scalable codebases that stay testable and maintainable as features grow.
Tailored for Beginners
Whether you're looking to switch careers, get ready for your first tech job, or learn programming for fun β this program was made for you.
This program is right for people who want to...
π§
Discover web development but don't know where to start
π οΈ
Learn by doing and build real-world projects
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Be intellectually challenged and stimulated every day
π
Switch careers and become professional backend developers
π₯οΈ
Go full-stack and bridge the gap between frontend and backend
βοΈ
Have a better work-life balance and a higher income
What Developers Say About It
Our content isn't guesswork. It's continuously reviewed by professional web developers, and here's what some of them have to say...
This program helps developers grasp the concepts of using modern JavaScript for the backend while applying enterprise-grade standards to code. A definite must if you don't want to waste time on deprecated tutorials across the web.
Thibault R
Full-Stack Developer
The way asynchronous behavior in Node.js is handled is accurate and presented in increasing complexity. It really teaches how Node behaves and why, which reduces a ton of confusion later when people start writing servers.
Corentin G
Senior Full-Stack Developer
The projects are practical, scoped, and cover essential software pieces. These are not just toy examples, they're small, production-shaped problems.
Francois P
Senior Backend Developer
This program covers the real foundations you expect from someone who says: I can code in Node. It perfectly aligns with what we ask juniors to do in actual tasks.
Gabriel F
Senior Backend Developer
This program is an excellent resource for junior backend developers who want to learn an end-to-end method for building modern applications with Node.js.
Camille B
Backend Developer
This program gives a realistic view of how backend works, it doesn't just talk about frameworks. It starts with the fundamentals, then walks the student all the way through routing, middleware, validation, error handling, and more... That's how backend should be taught.
Adrien B
Senior Backend Developer
I think the project list is the strongest part. These projects force the student to reason about I/O, state, and edge cases, which is the difference between watching a crash course and writing a tool that solves a problem.
Jean-Baptiste M
Full-Stack Developer
A comprehensive program for junior developers. The content is precise and easy to understand. Each lesson introduces a lot of new and interesting concepts without overwhelming the student.
Jean-Christophe L
Frontend Developer
Why Learn From Me?
Hi, I'm Razvan π β Senior Node.js backend engineer, technical writer, and founder of Learn Backend.
It's no secret: learning backend development on your own is extremely hard.
Before becoming a senior Node.js engineer with now over 10 years of experience, I also failed at it for years... and probably for the same reasons you're struggling with it right now.
The internet is full of content, but very little direction. No one tells you what to learn first, what to ignore, or how it all fits together.
This is why I created Learn Backend: a roadmap that teaches the core principles first, gradually introduces hands-on skills, and shows how all the pieces logically fit together.
I wanted to give people like me, and maybe you, the best fighting chance to make it in the software industry as job-ready backend developers β without wasting the years or facing the same unnecessary hurdles I did.
So if you're tired of guessing what to learn next or overwhelmed by all the noise, Learn Backend was built for you.
Peek Inside Before You Buy
Explore these full-length lessons completely for free to see exactly what you'll get and how you'll learn once inside. No sign-up required.
β¨οΈ
Parse Command-Line Arguments in Node.js
JavaScript
In this lesson, you'll learn how to create modular tools by defining, accessing, and parsing command-line arguments and custom option flags.
Read
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Work With Files in Node.js
Node.js
In this lesson, you'll learn how to interact with the file system by reading, writing, copying, and removing files using the fs module.
Read
π₯οΈ
Write & Run Your First Web Server With Express
Express
In this lesson, you'll learn the basics of building web servers in Express by writing your first HTTP API.
Read
Start Your Journey
Get lifetime access to 113 lessons, 29 projects, and all future program updates.
Early Access Offer π
Pay once, own it forever.
β¬79
30-day money-back guarantee
- 12 modules
- 113 lessons with full-code examples
- 29 projects with commented solutions
- All future lesson and project updates
- Lifetime access
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100% Satisfaction Guarantee & Money-Back Promise
I want the investment in the program to be an absolute no-brainer for you.
If for whatever reason you aren't 100% satisfied with your experience, send us an email within the first 30 days of purchase at support@learnbackend.dev and we'll refund your entire payment.
No hard feelings. No questions asked.
Everything else you need to know
You've got questions? We've got answers.
Does the program work on all operating systems?
The program is designed to work on Linux-based and macOS operating systems.
These environments are essential for learning backend development effectively, as they align with industry standards and provide the necessary tools and features.
However, if you're using Windows, we recommend setting up the Windows Subsystem for Linux (WSL) on your machine to follow along.
Who is this program for?
Aspiring backend developers and junior developers who want to get confident building real CLI tools and real HTTP APIs in Node.js.
It is also a good fit if you learn best by following a structured roadmap and shipping projects.
Is it text-based or video-based?
It is text-based.
You get full-length written lessons and projects with runnable code, and you are expected to code along locally.
Do I need prior JavaScript or Node.js experience?
No.
The program starts from JavaScript fundamentals and ramps up progressively to Node.js, CLI apps, and APIs.
What are the prerequisites to follow along?
A computer, a terminal, and a code editor.
You also need Node.js installed so you can run scripts locally.
How long does it take to complete the program?
It depends on your pace, but a realistic range is 3-6 months if you code regularly.
The projects are where most of the time goes, and they are the point of the program.
How does the roadmap format work?
The program is organized as a visual roadmap.
The core path is the main sequence of lessons, recommended lessons are optional but useful when you feel friction, and projects are where you apply what you learned.
Are the projects practical or just toy exercises?
They are practical.
You build scripts and tools that mirror real backend work: parsing text, converting formats, processing files and streams, building CLI utilities, and building APIs.
Is this close to production practices, or more academic?
It is close to production practices for application-level Node.js work.
You learn structured error handling, input validation, consistent responses, configuration through environment variables, rate limiting, documentation, and layered architecture.
It does not focus on scaling, orchestration, or observability.
Is there support or a community to ask questions?
Not at launch.
The program is designed to be self-serve, and support options can be introduced later depending on demand.
I've got more questions, how can I reach you?
You can send us an email at support@learnbackend.dev