API Authentication is the process of verifying who is trying to access your application or service through an API.
Think of it as the bouncer at the door of your digital club making sure only authorized people (or systems) get in.
In simple terms:
It confirms "Who are you?"
It checks if you have permission to access certain data or perform actions.
Without proper authentication, your API is like an open house anyone can walk in, steal data, or cause damage.
Common Methods:
- JWT (JSON Web Tokens): Popular for modern apps because it’s stateless and scalable.
- OAuth 2.0: Used when users log in with Google, GitHub, etc.
- API Keys: Simple but less secure for public APIs.
- mTLS: Used in high-security environments like banks.
Gabriel Odusanya 🇳🇬🇬🇧@gabbytech01API Authentication is one of the most important and in-demand skills in Application Security Engineering and SecDevOps.