REST APIs Demystified — Methods, Endpoints, Status Codes
Learn how REST APIs work — the HTTP methods, URL structures, and status codes that power every web application.
Every time you load a webpage, submit a form, or scroll through an infinite feed, your browser is talking to a server through an API. Every time your app fetches user data, saves a record, or processes a payment — API. Every single interaction between your frontend and your backend, between your app and someone else's service, between any two pieces of software that need to share data — it all happens through APIs.
If you're going to build real software, you need to understand how they work. Not at a PhD level. At a practical, "I can build things and debug problems" level.
Let's get there.
What Is a REST API?
REST stands for Representational State Transfer. That's a mouthful that basically means: you interact with resources (data) using standard HTTP methods, and the server res
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