A comprehensive guide to testing API edge cases, input validation boundaries, and security vulnerabilities that attackers exploit but developers rarely test. Master advanced API testing techniques to uncover hidden vulnerabilities in input validation, authentication, and error handling that standard testing misses.
By treating the OpenAPI specification as the single source of truth, teams can design APIs up front, generate always-accurate documentation, enforce contract-based tests, and even auto-produce client SDKs and server stubs across languages. This eliminates drift between code, tests, and docs, reduces duplication, and creates a shared foundation that streamlines collaboration throughout the API lifecycle.
Mastering API testing through chaos, negative testing, and boundary conditions
Imagine spending too much time chasing a login bug, only to discover the culprit was an invisible character hiding in an email address. This story shows how tiny Unicode quirks can break systems in ways you never expect, and why I built Dochia, a free tool that helps you catch these sneaky issues before they hit production.
