Lesson 1534 of 2116
Generating a mock server from an OpenAPI spec with GPT
Turn an OpenAPI doc into a runnable mock so frontends can build before the backend exists.
Lesson map
What this lesson covers
Learning path
The main moves in order
- 1The premise
- 2mock servers
- 3OpenAPI
- 4contract-first
Concept cluster
Terms to connect while reading
Section 1
The premise
When the contract is real, both teams can ship in parallel — and an LLM can do the boring scaffolding.
What AI does well here
- Generate handlers that return spec-conforming examples
- Wire latency and error injection knobs
What AI cannot do
- Match real backend behavior under load
- Replace contract tests against the real service
Key terms in this lesson
End-of-lesson quiz
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