KHALIL STEMMLER

Currently

Spinning "Virgo's Maze" by Part Time

Reading "Patterns of Enterprise Application Architecture" by Martin Fowler

My book on Node.js / TypeScript software design and architecture just pre-launched 📕 (%33 off)!

SOLID: The Software Design & Architecture Handbook

Presale $24.99

Advanced TypeScript & Node.js best practices for large-scale applications. Learn to write flexible, maintainable software.

I create courses, books, and articles for aspiring developers on Enterprise Node.js, Domain-Driven Design and writing testable, flexible JavaScript.

recent articles

How to Learn Software Design and Architecture | The Full-stack Software Design & Architecture Map Software Design

Sep 28th, 2019 / 16 min read

Software Design and Architecture is pretty much it's own field of study within the realm of computing, like DevOps or UX Design. H...

by Khalil Stemmler

Decoupling Logic with Domain Events [Guide] - Domain-Driven Design w/ TypeScript Domain-Driven Design

Sep 26th, 2019 / 22 min read

ddd typescript software design domain events sequelize typeorm

In this article, we'll walk through the process of using Domain Events to clean up how we decouple complex domain logic across the...

by Khalil Stemmler

Does DDD Belong on the Frontend? - Domain-Driven Design w/ TypeScript Domain-Driven Design

Sep 24th, 2019 / 18 min read

ddd typescript software design frontend development

Should we utilize Domain-Driven Design principles and patterns in front-end applications? How far does domain modeling reach from ...

by Khalil Stemmler

The 6 Most Common Types of Logic in Large Applications [with Examples]Software Design

Sep 16th, 2019 / 12 min read

application logic architecture clean architecture

In this article, you'll learn about the Clean Architecture, why we should separate the concerns of large applications into layers,...

by Khalil Stemmler

Why I Don't Use a DI Container | Node.js w/ TypeScript Software Design

Sep 16th, 2019 / 11 min read

ioc containers dependency injection inversion of control

Instead of a DI Container, I just package features by component and use logical naming conventions.

by Khalil Stemmler

Dependency Injection & Inversion Explained | Node.js w/ TypeScript Software Design

Sep 11th, 2019 / 11 min read

dependency injection dependency inversion inversion of control ioc containers

Dependency Injection and Depedency Inversion are two related but commonly misused terms in software development. In this article, ...

by Khalil Stemmler

How to Setup a TypeScript + Node.js Project TypeScript

Aug 29th, 2019 / 10 min read

guides typescript starters

In this guide, we walk through the process of creating a TypeScript project from scratch with cold-reloading, and scripts for buil...

by Khalil Stemmler

Where Do Domain Events Get Created? | Domain Driven Design w/ TypeScript Domain-Driven Design

Jul 4th, 2019 / 5 min read

ddd domain entities software design domain events

In this post, I explain how good ol' fashioned encapsulation + TypeScript getters and setters enable us to effectively create Doma...

by Khalil Stemmler

My book on Node.js / TypeScript software design and architecture just pre-launched 📕 (%33 off)!

SOLID: The Software Design & Architecture Handbook

Presale $24.99

recently edited wikis

Anemic Domain Model

Updated Sep 24th, 2019 / 6 min read

domain-driven design

When the classes that describe the model and the classes that perform operations on the model are separate. The services contain all the domain logic while the the domain objects themselves contain practically none.

The Dependency Rule

Updated Sep 17th, 2019 / 4 min read

solid architecture design principles

A software architecture rule that specifies the relationship between layers, namely that an inner layer should never rely on anything from an outer layer.