Configurable Web Server Development with Deno and Dependency Inversion

Modern backend development demands codebases that are easy to test, maintain, and scale. This text-based course guides you through building a robust, configurable web server using Deno, TypeScript, and the powerful Dependency Inversion Principle. You will start with the absolute fundamentals of Deno, understanding its native security model, modern module resolution, and built-in tooling before writing your first server configuration. Through clear written explanations and structured code exercises, you will transform a basic HTTP listener into a production-ready architecture where business logic is decoupled from external infrastructure. What you will learn: Understand the core architecture of Deno, its modern runtime security, and built-in TypeScript support; Configure flexible web servers with dynamic port allocation and environment variables; Apply the Dependency Inversion Principle to decouple business logic from framework-specific code; Implement mock interfaces to write reliable unit tests for your HTTP handlers; Manage modern Deno configuration files and import maps for clean dependency management. The course begins with essential architectural definitions and Deno setup basics, moving step-by-step into advanced software design patterns and practical testing strategies. This course is designed for beginner to intermediate backend developers and JavaScript programmers who want to transition to Deno and master clean code principles. No previous Deno or software architecture experience is required. Start reading today to build cleaner, more testable backend systems.