Enhancing FastAPI Documentation: Tips for Customizing Swagger UI

Swagger UI is the default API documentation tool for FastAPI, enabling interface visualization and testing. Customization can enhance its professionalism. For basic modifications, set parameters like title and description when creating the FastAPI instance to display personalized information on the `/docs` page. There are two styles customization methods: injecting CSS via middleware to quickly modify the background, navigation bar, etc.; or using static files to inject complex styles (e.g., logos). Sensitive information can be hidden by excluding fields with `Pydantic` model `Field(exclude=True)` or the interface `response_model_exclude`. Advanced techniques include layout adjustment, adding descriptions, and replacing buttons. The core implementation relies on basic information, CSS, and parameter control. Beginners can start with simple modifications while noting version compatibility.