Architecture & Design

What "architecture" actually means for a Node.js service, why it comes down to the cost of change rather than diagrams, and how boundaries, coupling, and dependency direction relate to each other - the mental model behind every other page in this section.

Explore Node.js backend architecture and design with 8 examples. Learn to build modular monoliths, layer domain logic, and split services based on evidence.

Learn to implement hexagonal architecture in Node.js, isolating business rules from frameworks and databases for flexible, testable applications.

Optimize Node.js backend architecture with best practices for change isolation. Learn to build evolvable systems, manage dependencies, and scale effectively.

A single-page roundup of every highlight bullet from the 8 pages in the Architecture & Design section, grouped by source page so you can scan all 33 takeaways without opening each article individually.