Guide to HTTP Status Codes for Developers

Alberto Robles
3 min readJun 15, 2024

Ever hit a mysterious error while browsing or coding and wondered what those three-digit numbers mean? You’re not alone. HTTP status codes are like secret messages between your browser and a server. Whether you’re debugging your latest project or just surfing the web, understanding these codes can save you a ton of time and headaches. Let’s break down these common codes so you can understand what’s happening behind the scenes.

Success Codes: All Systems Go

200 OK

Think of this as a green light. Your request went through, and everything’s fine. The server successfully handled your request, whether you were fetching data, submitting a form, or just trying to load a webpage.

201 Created

This one’s exciting. Your request led to the creation of something new, like a new user profile, a freshly posted comment, or a new entry in your database. It’s like hearing the “ding” when you send a message and know it’s delivered.

202 Accepted

Your request has been received, but the server is still working on it. It’s like placing an order and knowing it’s being prepared. You’ll get your response eventually, but it might take a bit longer.

204 No Content

The server processed your request, but there’s nothing to show for it. This is normal when you delete something or when no new data is needed. It’s like…

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