A key function of any web application framework is that of managing HTTP requests from clients. Web applications respond to those requests for information/data in many formats (HTML, CSV, JSON, etc.) and ways (building content from scratch, serving up static files, pulling data from a database, and returning it, redirecting to a different resource/service). It is because of this that a framework’s ability to identify requests and map them to internal resources is critical.
In this video, we dive into Express.js’ router and how it is used to manage the mapping of client requests to its internal resources.
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