Implementing a simpler version of a technology that you use every day can help you understand it better. In this article, we will apply this technique by building a simple HTTP server in Ruby.
By the time you’re done reading, you will know how to serve files from your computer to a web browser with no dependencies other than a few standard libraries that ship with Ruby. Although the server we build will not be robust or anywhere near feature complete, it will allow you to look under the hood of one of the most fundamental pieces of technology that we all use on a regular basis.
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