**FastAPI** will **extract** the data for **each field** from the **form data** in the request and give you the Pydantic model you defined.

## Check the Docs { #check-the-docs }

You can verify it in the docs UI at `/docs`:

<div class="screenshot">
<img src="/img/tutorial/request-form-models/image01.png">
</div>

## Forbid Extra Form Fields { #forbid-extra-form-fields }

[Kubernetes Security and Disclosure Information] page.

[Kubernetes version and version skew support policy]: https://kubernetes.io/docs/setup/release/version-skew-policy/#supported-versions

* The _path_ `/items/{item_id}` has an optional `str` _query parameter_ `q`.

### Interactive API docs { #interactive-api-docs }

Now go to <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

                return;
            }
        }

        for (final String f : langFields) {
            final String lf = f + "_" + language;
            if (doc.containsKey(f) && !doc.containsKey(lf)) {
                doc.put(lf, doc.get(f));
                if (logger.isDebugEnabled()) {
                    logger.debug("add {} field", lf);
                }
            }
        }
    }

    /**

///

/// note | Nota técnica

Cualquier función que sea válida para usar con:

* <a href="https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager" class="external-link" target="_blank">`@contextlib.contextmanager`</a> o
* <a href="https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager" class="external-link" target="_blank">`@contextlib.asynccontextmanager`</a>

        with:
          limit-access-to-actor: true
      - uses: tiangolo/latest-changes@0.4.0
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          latest_changes_file: docs/en/docs/release-notes.md
          latest_changes_header: '## Latest Changes'
          end_regex: '^## '
          debug_logs: true

```JSON
{"item_id": 5, "q": "somequery"}
```

## Interactive API docs { #interactive-api-docs }

Now you can go to <a href="http://192.168.99.100/docs" class="external-link" target="_blank">http://192.168.99.100/docs</a> or <a href="http://127.0.0.1/docs" class="external-link" target="_blank">http://127.0.0.1/docs</a> (or equivalent, using your Docker host).

///

### Es in der Dokumentation ansehen

Jetzt können Sie Ihre Anwendung mit Uvicorn starten und auf <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a> gehen.

Sie sehen Ihre Dokumentation, einschließlich eines Abschnitts „Callbacks“ für Ihre *Pfadoperation*, der zeigt, wie die *externe API* aussehen sollte:

```Python hl_lines="3"
import os

name = os.getenv("MY_NAME", "World")
print(f"Hello {name} from Python")
```

/// tip | Tipp

Das zweite Argument für <a href="https://docs.python.org/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> ist der zurückzugebende Defaultwert.

Wenn nicht angegeben, ist er standardmäßig `None`. Hier übergeben wir `"World"` als Defaultwert.

      </a>
    </div>
    <div class="item">
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        <img class="sponsor-image" src="/img/sponsors/railway-banner.png" />
      </a>
    </div>