Work

API Contract Hub

TypeScript
Next.js
Prisma
Test Generation

API contract platform that auto-generates test cases. Eliminated integration bugs by ensuring frontend and backend teams agree on contracts from day zero.

API contract platform

Business Case

As a product leader managing engineering teams, I noticed a recurring pattern: frontend and backend teams worked in parallel but disagreed on API contracts, causing integration bugs at delivery time. I built a tool to solve this once and for all.

Impact

  • Zero integration risk: FE and BE agree on contracts before writing code
  • Integration happens with the same deploy, no additional effort
  • Unit test cases documented from day one, reducing future bugs
  • Eliminates documentation gaps that cause problems months later
  • Personal tool I use to lead my engineering teams more effectively

How It Works

  1. Teams define API contracts collaboratively (endpoints, types, validations)
  2. The platform auto-generates invalid test cases: structural, type-mismatch, and format validation
  3. Generated tests are copy-paste ready (Jest/Vitest/Mocha)
  4. Contracts export to OpenAPI 3.0 spec

View source code on GitHub →