Destroy All Software

Variables in Routes (8x2)

Air date: Feb 28, 2018

We extend our simple request router to allow variables in the routes, like the variable "username" in "/users/:username". It extracts the variables' values from the requested path and feeds them to the handler block, as in most web frameworks. Regexes are the obvious implementation choice in a language like Ruby. We briefly look at the pitfalls in the regex approach, then implement with a much more straightforward method.