Expedia
LLM products

Focus on the Feature, Not the Fixture: GenAI powered GraphQL mocks

Our short summary of Expedia’s engineering write-up. The full story, with all the detail, is on their blog.

Read the full write-up on medium.com (opens in a new tab)

Problem

Developers spent hours creating and updating hand‑written GraphQL mock data that quickly became outdated.

Solution

They created mockql‑rs, a CLI that reads a GraphQL query with @mock tags, checks the schema, and asks an LLM to fill in only the annotated fields, producing schema‑valid mock responses on the fly.

Want the architecture, code and numbers? They’re in the original post.

Read the full write-up on medium.com (opens in a new tab)

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