System Design · Junior · Question 71 of 75

What is OpenAPI (Swagger) used for?

✓Correct answer: Describing a REST API in a machine-readable format to generate docs, clients, types and tests
2Opening APIs to the public
3Encrypting API traffic

Explanation

Generating TypeScript types from the spec keeps the frontend in sync with the backend contract.

Further reading

OpenAPI Specification ↗

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