Articles
Technical guides and references. No hacking, cracking, or exploit content.
API authentication is how the server knows who is calling. We'll cover the main approaches: API keys, Bearer tokens, and OAuth-style flows, and when to use them. Choosing the right method (API key, Bearer token, or OAuth) depends on who the client is (your app, another service, or an end user) and whether you want to delegate identity to a provider. Below: how to implement and document them securely.
Some mistakes show up again and again: off-by-one errors, ignoring failures, or copying code without understanding it. We'll list frequent ones and how to avoid them. A short checklist (did I handle errors? did I check bounds? did I name this clearly?) catches many issues before they reach production or code review. Same mistakes, same fixes—here are practical habits to prevent them.