FastAPI Form Data Handling: Receiving multipart/form-data

To handle `multipart/form-data` format (for mixed form and file transmission) in FastAPI, tools like `Form`, `File`, or `UploadFile` are required. Text data is received using `Form`, where `Form(...)` marks required parameters (e.g., `name: str = Form(...)`), and optional parameters can be set with default values. For file uploads, there are two methods: `File` returns binary content (suitable for simple scenarios), while `UploadFile` provides metadata such as filename and MIME type (use the `read()` method if saving the file). In mixed scenarios, both `Form` and file tools must be used simultaneously. Testing can be done by submitting requests through FastAPI's built-in Swagger UI (`http://localhost:8000/docs`). Mastering these tools enables handling requirements for form submissions with both text and files.