#Http 400 Status Code

HTTP Status Codes Explained (Quick Guide) Understanding HTTP Status Codes is essential for every developer, tester, and API engineer. This short video breaks down the most common 2xx, 3xx, 4xx, and 5xx responses you’ll encounter while building or debugging web applications. 🔹 2xx – Success ✅ 🔹 3xx – Redirection 🔁 🔹 4xx – Client Errors ⚠️ 🔹 5xx – Server Errors 🔥 Whether you’re working with REST APIs, frontend-backend communication, or web debugging, knowing these status codes helps you respond faster and build more reliable systems. 📌 Save this for quick reference 📌 Perfect for interviews & real-world debugging 📌 Beginner-friendly, developer-approved HTTP status codes, REST API, web development, backend development, frontend development, API response codes, HTTP errors, client error, server error, debugging APIs, software engineering basics #httpstatuscodes #webdevelopment #apidevelopment #backenddeveloper #frontenddeveloper

Http Status codes you should know.

HTTP Methods Made Simple 🚀 To truly understand APIs, you need to understand HTTP methods. Every interaction between a client and a server has a clear purpose — and a status code that reflects the result. 🔹 GET — Fetch data (200 OK) 🔹 POST — Create a new resource (201 Created) 🔹 PUT — Completely replace existing data (200 OK) 🔹 PATCH — Update part of a resource (200 OK) 🔹 DELETE — Remove a resource (204 No Content) Well-structured architecture. Clear communication. Efficient backend logic. If you’re building APIs, knowing how these methods work together isn’t optional — it’s essential. Save this post and sharpen your backend fundamentals 💻🔥 #backend #frontend #webdevelopment #api #programming softwareengineering

Stop memorizing every HTTP code Trick Summary: 1xx: Hold on (Informational) 2xx: Here you go (Success) 3xx: Go away (Redirection) 4xx: You messed up (Client Error) 5xx: I messed up (Server Error) HTTP Status Codes, Web Development 2026, Backend Engineering, REST API, Debugging Tips, Interview Preparation, Networking Basics, 404 Error, 500 Internal Server Error, Software Engineering, HTTP Status, API Debugging, Server Errors, Client Errors, Web Basics, Software Interview, 404 Not Found, 200 OK, Redirects, Tech Education #WebDev #CodingCommunity #FullStackDeveloper #API #SoftwareEngineering #TechTips #ProgrammerLife #WebDevelopment2026 #HTTPStatusCodes #BackendDeveloper #LearnToCode #CodingHacks #ComputerScience #InterviewPrep #DevTips #RESTfulAPI #DidYouKnow #TechExplained #SoftwareDevelopment #CodingBootcamp #LifeOfADeveloper #WebDesignTips #CodingTutorial

A basic error message is rarely sufficient in real-world applications. Learn how to extend the Error class to attach custom properties like status codes to your errors — so when something breaks, you actually know what to do about it.

Quick guide to HTTP Status. Save for later 👇 #coderschain #code4web #webdevelop #developers #reactjs

HTTP status code categories #restapi #microservices #backenddevelopment #webdevelopers #hungrycoders

Cache Control is not something browser sends first. It is a response header sent by the server along with the API response. Server is basically telling browser or CDN how to treat that data. Example User hits GET /api/profile Server sends profile JSON + Cache Control header Now what happens next depends on the type of Cache Control 👇 1️⃣ no-cache This does NOT mean do not cache. It means you can store the response, but before using it again you must check with the server if it is still valid. So browser keeps a copy, but every time before reuse it revalidates. Perfect for dashboards or data that changes often but not every second. 2️⃣ no-store This means do not store this response anywhere. Not in browser memory. Not on disk. Not in CDN. Used for login response, OTP verification, bank details or anything sensitive. Every single request must hit the server again. No shortcuts. 3️⃣ private This means browser can store it, but shared caches like CDN cannot. Very important for authenticated APIs like user profile. It ensures one user’s data is not cached and accidentally served to another user. 🚨Real production mistake 🚨 If you accidentally send public with max-age on an authenticated endpoint, CDN may cache it based on URL. Now imagine User A hits /api/profile CDN caches it User B hits same URL CDN serves User A’s data Boom. Data leak !!!!! Like, Share and Follow for more !! And save this reel for later :) #apis #backend #api #systemdesign

🔥 𝗜𝗡𝗧𝗘𝗥𝗩𝗜𝗘𝗪𝗘𝗥: “If both GET and POST send data to a server… why is sending passwords via GET a bad idea?" 🧠 𝗕𝗘𝗚𝗜𝗡𝗡𝗘𝗥 𝗘𝗫𝗣𝗟𝗔𝗡𝗔𝗧𝗜𝗢𝗡 Imagine writing your password: • On a postcard (visible to everyone on the way) • Or inside a sealed envelope GET is like a postcard. Data is attached directly in the URL. POST is like an envelope. Data goes inside the request body. The difference isn’t just visibility in the browser. It’s where the data travels. ⚙️ 𝗧𝗘𝗖𝗛𝗡𝗜𝗖𝗔𝗟 𝗕𝗥𝗘𝗔𝗞𝗗𝗢𝗪𝗡 🔹 GET • Data is sent in the URL • Visible in browser history • Stored in server logs • Can be cached • Has length limits Used for: Fetching data only. 🔹 POST • Data is sent in request body • Not visible in URL • Not cached by default • No strict size limit Used for: Creating or modifying data. Important concept: GET is idempotent → Repeating it should not change data. POST is not idempotent → Repeating it may create duplicate actions. Sending sensitive data via GET is risky because: • URLs can be logged • URLs can be cached • URLs can be bookmarked • URLs can leak through referer headers Even over HTTPS. 🚀 𝗦𝗬𝗦𝗧𝗘𝗠 𝗟𝗘𝗩𝗘𝗟 𝗜𝗡𝗦𝗜𝗚𝗛𝗧 Security doesn’t come from POST. Security comes from HTTPS. But protocol design matters: GET = safe, read-only, cacheable POST = state-changing, not cache-friendly Wrong method choice can: • Break caching • Cause duplicate actions • Leak sensitive info It’s not about “form submission.” It’s about semantics. 🎯 𝗜𝗡𝗧𝗘𝗥𝗩𝗜𝗘𝗪 𝗙𝗟𝗘𝗫 GET transmits parameters in the URL and is designed to be safe and idempotent, while POST sends data in the request body and is intended for state-changing operations. Sensitive data should avoid GET due to logging and caching exposure risks. 🔥 𝗙𝗜𝗡𝗔𝗟 𝗧𝗥𝗨𝗧𝗛 GET asks. POST acts. Choose wisely. 👉 Follow @darpan.decoded Save this for Backend fundamentals. #coding #computerscience #systemdesign #backendlogic #javascript

Follow @cloud_x_berry for more info #HTTPMethods #RESTAPI #BackendDevelopment #WebDevelopment #APIDesign HTTP methods, RESTful APIs, GET request, POST request, PUT request, PATCH request, DELETE request, client server architecture, API endpoints, CRUD operations, status codes 200 201 204, resource creation, data retrieval, resource update, partial update, resource deletion, request response cycle, stateless protocol, web services, backend fundamentals

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Every developer has faced them: HTTP status codes 🚦 But do you really know what each one means? Here’s a cheat sheet to save you next time your API screams at you. #WebDev #BackendTips #APIs #DevCheatSheet #Programming #DeveloperLife #HTTPStatus #CodeFaster