How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Cloud API backend rewrite and property-based testing

calendar_today June 9, 2026 person domain hetzner

Unit tests weren’t sufficient to validate a full Cloud API backend rewrite, so Hetzner’s engineers used property-based testing with randomized sequences of API calls to catch edge cases.

open_in_new Read original post