Home Courses API Development in 5 Days Day 4
Day 04 Documentation

OpenAPI Specification and Documentation

Write an OpenAPI 3.1 spec, generate SDKs with OpenAPI Generator, publish interactive docs with Swagger UI, and the documentation-first workflow that makes your API a product.

~1 hour Intermediate Hands-on Precision AI Academy

Today's Objective

Write an OpenAPI 3.1 spec, generate SDKs with OpenAPI Generator, publish interactive docs with Swagger UI, and the documentation-first workflow that makes your API a product.

Content coming soon.

What's Next

The foundations from today carry directly into Day 5. In the next session the focus shifts to Testing APIs with Postman and Pytest — building directly on everything covered here.

Supporting Videos & Reading

Go deeper with these external references.

YouTube
OpenAPI Specification and Documentation — Video Walkthroughs Community tutorials and walkthroughs covering the concepts in this lesson.
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YouTube
OpenAPI Specification and Documentation Explained Deep-dive explanations and live-coding sessions from top educators.
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Official Docs
Official Documentation Primary reference documentation for the technologies covered in this lesson.
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GitHub
Open Source Examples Real-world codebases demonstrating the patterns taught in this lesson.
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Day 4 Checkpoint

Before moving on, verify you can answer these without looking:

Live Bootcamp

Learn this in person — 2 days, 5 cities

Thu–Fri sessions in Denver, Los Angeles, New York, Chicago, and Dallas. $1,490 per seat. June–October 2026.

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