BEFORE YOU START

One sample payload cannot describe every response an API may return. Generated types save typing, but the contract and real payload diversity remain authoritative.

FOLLOW ALONGOpen the live JSON to Code workspace
01

Use a representative sample

Include nested objects, arrays, nulls, and optional-looking fields rather than a minimal success response.

EXAMPLE
sample.json
02

Generate for the target language

Choose naming and serialization conventions that match the codebase.

EXAMPLE
Go json tags / TypeScript interfaces
03

Review ambiguous values

A string may represent a timestamp, enum, decimal, or opaque ID; generation cannot infer every domain rule.

EXAMPLE
"created_at": "2026-08-11T10:00:00Z"
04

Add validation and tests

Treat the generated output as a draft and test it against multiple captured payloads and the published schema.

EXAMPLE
contract tests
Key takeaways
  • Samples demonstrate values, not the complete contract.
  • Review nullability and numeric ranges manually.
  • Keep serialization names stable.