FastAPI: Configure API Metadata for Better Docs

Think of FastAPI metadata as your project's business card. It sets the title, version, and description in your auto-generated docs, making your API professional and discoverable. The main footgun is forgetting to update the version string after a release.
Think of FastAPI metadata as your project's business card, defining its public identity. By setting parameters like `title` and `version` in the main FastAPI app instance, you customize the auto-generated docs (Swagger UI/ReDoc). This is essential for making your API professional and understandable to other developers or tools that consume OpenAPI schemas. The common footgun is forgetting to update the `version` string, causing a mismatch between documented features and the actual deployed code.
Read the original → fastapi.tiangolo.com
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