Senior LevelREST APIs & Web Services
How do you enforce Semantic Versioning (SemVer) rules on public REST APIs?
❓ Interview Prompt: Explain SemVer (MAJOR.MINOR.PATCH) for REST APIs, defining breaking vs non-breaking changes, and automated OpenAPI diff checking in CI/CD.
Enforcing Semantic Versioning (MAJOR.MINOR.PATCH) standards on public Web APIs:
Version Bump Rules:
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MAJOR Version ('v1' $\rightarrow$ 'v2'): Bumped for Breaking Changes (removing an endpoint, renaming payload fields, changing field data types, adding required request parameters).
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MINOR Version ('v1.1' $\rightarrow$ 'v1.2'): Bumped for Backwards-Compatible Additions (adding new optional fields, adding new endpoints).
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PATCH Version ('v1.1.1' $\rightarrow$ 'v1.1.2'): Bumped for backwards-compatible internal bug fixes.
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CI/CD Tooling: Use 'oasdiff' in pipelines to automatically detect breaking schema changes and block un-versioned releases!
Code Implementation Example
bash
# Run oasdiff in CI pipeline to detect breaking API changes between branches:
oasdiff breaking https://api.example.com/v1/openapi.json new-openapi.json💡Detecting breaking API changes in CI/CD using oasdiff.
🎯 Interview Key Takeaway
Use oasdiff in CI/CD pipelines to detect breaking OpenAPI changes automatically and enforce Semantic Versioning rules.
#SemVer#API Versioning#oasdiff#Governance#Senior
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