Write a simple web service in Rust using hyper

Building web services with simplicity in mind can lead to improved performance, maintainability, and code quality by using smaller, lightweight libraries instead of heavy, fully-featured frameworks. The text discusses the drawbacks of using complex frameworks, such as hidden complexity and debugging challenges, against the inefficiency of writing everything from scratch. It suggests a balanced approach of combining small libraries to create a minimal system, allowing developers to tailor solutions to specific problems without unnecessary complexity. This approach requires experience but offers the benefit of understanding and controlling the codebase, enabling customization of APIs and system architecture. The text provides a tutorial on building a Rust web service without a full framework, utilizing libraries like hyper and tokio for an HTTP server, and emphasizes the importance of using reliable, open-source solutions for critical components like security. The tutorial guides through setting up a basic web server with routing and handlers, demonstrating how to extend it for production use, highlighting the advantages of this method in creating efficient, adaptable systems.