# Summary REST and distributed systems have become very popular in the last 10 - 15 years and that JavaScript has become very popular due to the introduction of Node.js. The problem is that there are no REST best practices or guidelines, and JavaScript does not have a good reputation for structuring larger applications. In order to combat against these 2 problems, we must evolve as developers and use modern practices to solve them. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://book.restfulnode.com/part-1/chapter-1/summary.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.