Primeiro, você tem que importá-lo:

```Python hl_lines="4"
{!../../docs_src/body_fields/tutorial001.py!}
```

/// warning | "Aviso"

Note que `Field` é importado diretamente do `pydantic`, não do `fastapi` como todo o resto (`Query`, `Path`, `Body`, etc).

///

## Declare atributos do modelo

Você pode então utilizar `Field` com atributos do modelo:

```Python hl_lines="11-14"
{!../../docs_src/body_fields/tutorial001.py!}
```

```Python hl_lines="2-3  23"
{!../../docs_src/wsgi/tutorial001.py!}
```

## Es ansehen

Jetzt wird jede Anfrage unter dem Pfad `/v1/` von der Flask-Anwendung verarbeitet.

Und der Rest wird von **FastAPI** gehandhabt.

Wenn Sie das mit Uvicorn ausführen und auf <a href="http://localhost:8000/v1/" class="external-link" target="_blank">http://localhost:8000/v1/</a> gehen, sehen Sie die Response von Flask:

```txt

### <a href="https://www.django-rest-framework.org/" class="external-link" target="_blank">Django REST Framework</a>

Django REST framework was created to be a flexible toolkit for building Web APIs using Django underneath, to improve its API capabilities.

// See the License for the specific language governing permissions and
// limitations under the License.

package cli

import (
	"net/http"

	"k8s.io/cli-runtime/pkg/resource"
	"k8s.io/client-go/rest/fake"
	cmdtesting "k8s.io/kubectl/pkg/cmd/testing"
	"k8s.io/kubectl/pkg/cmd/util"

	"istio.io/istio/pkg/kube"
)

func init() {
	MakeKubeFactory = func(k kube.CLIClient) util.Factory {

# Exceptions - `HTTPException` and `WebSocketException`

These are the exceptions that you can raise to show errors to the client.

When you raise an exception, as would happen with normal Python, the rest of the execution is aborted. This way you can raise these exceptions from anywhere in the code to abort a request and show the error to the client.

You can use:

* `HTTPException`
* `WebSocketException`

```Python hl_lines="2-3  23"
{!../../docs_src/wsgi/tutorial001.py!}
```

## Check it

Now, every request under the path `/v1/` will be handled by the Flask application.

And the rest will be handled by **FastAPI**.

If you run it and go to <a href="http://localhost:8000/v1/" class="external-link" target="_blank">http://localhost:8000/v1/</a> you will see the response from Flask:

```txt

          script: |
            const output = `
            Some bad merge is found:
            \`\`\`
            ${{ env.OUTPUT }}
            \`\`\`
            `;
            github.rest.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: output

* <a href="https://alternativeto.net/software/fastapi/" class="external-link" target="_blank">Votez pour **FastAPI** sur AlternativeTo</a>.
* <a href="https://github.com/marmelab/awesome-rest/pull/93" class="external-link" target="_blank">Votez pour **FastAPI** sur awesome-rest</a>.

## Aider les autres à résoudre les problèmes dans GitHub

                  @Override
                  protected List<String> create(String[] elements) {
                    String[] rest = new String[elements.length - 1];
                    arraycopy(elements, 1, rest, 0, elements.length - 1);
                    return Lists.asList(elements[0], rest);
                  }
                })
            .named("Lists.asList, 2 parameter")
            .withFeatures(

                  @Override
                  protected List<String> create(String[] elements) {
                    String[] rest = new String[elements.length - 1];
                    arraycopy(elements, 1, rest, 0, elements.length - 1);
                    return Lists.asList(elements[0], rest);
                  }
                })
            .named("Lists.asList, 2 parameter")
            .withFeatures(