Building a REST API in Rust with Rhai and Actix Web

Rhai is a high-level, embeddable scripting language designed to simplify the process of writing complex application logic within Rust programs, making it accessible through easy-to-understand scripts. The language benefits from a JavaScript-like syntax, dynamic typing, and the ability to execute securely in a sandboxed environment, ensuring memory safety and preventing interference with Rust programs. Rhai's integration with Rust facilitates the creation of RESTful APIs using the Actix Web framework, allowing developers to extend complex functionalities from Rust into Rhai scripts. The article provides a detailed guide on setting up Rhai with Rust, including examples of embedding Rhai scripts, creating simple and dynamic REST API routes, and leveraging Rhai's evaluation engine to execute logic while handling REST API routing through Rust. It also highlights the benefits of using Rhai for its speed, flexibility, and the ease with which complex algorithms can be implemented in Rust programs.