ADevGuide Tag: HTTP
All the articles with the tag "HTTP".
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What Happens When You Type a URL? Step-by-Step Explained
Series: Internet and Web Foundations Series
Understand what happens when you type a URL: browser parsing, DNS lookup, TCP/TLS handshakes, HTTP flow, rendering, and debugging tips.
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HTTP Methods: GET vs POST vs PUT vs PATCH vs DELETE
Series: Backend Interview Mastery
Master HTTP methods for backend interviews: GET, POST, PUT, PATCH, and DELETE semantics, retries, caching, and API design trade-offs.
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HTTP Status Codes Explained: 200, 404, 500 and More
Series: Backend Interview Mastery
Master HTTP status codes for backend interviews: 200, 201, 400, 401, 403, 404, 409, 429, 500, and 503 with API examples.
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What Is CORS? Backend Guide to Preflight and Security
Series: Backend Interview Mastery
Learn what CORS is for backend interviews: browser origins, preflight requests, credential rules, safe headers, and production debugging.
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What Is a REST API? Principles, Examples and Interview Questions
Series: Backend Interview Mastery
What is a REST API? Learn resource design, HTTP semantics, idempotency, and the interview answers backend engineers need.
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How APIs Work: A Simple Guide for Beginners
Series: Internet and Web Foundations Series
Learn how APIs work end to end: requests, responses, authentication, status codes, versioning, and practical backend patterns for beginners.
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HTTP vs HTTPS: What's the Difference? (Beginner's Guide)
Series: Internet and Web Foundations Series
Learn HTTP vs HTTPS with clear examples: encryption, TLS certificates, integrity, authentication, SEO impact, performance, and migration best practices.