///

## `Annotated` im Typ des `q`-Parameters verwenden

Erinnern Sie sich, wie ich in [Einführung in Python-Typen](../python-types.md#typhinweise-mit-metadaten-annotationen){.internal-link target=_blank} sagte, dass Sie mittels `Annotated` Metadaten zu Ihren Parametern hinzufügen können?

Jetzt ist es an der Zeit, das mit FastAPI auszuprobieren. 🚀

Wir hatten diese Typannotation:

//// tab | Python 3.10+

///

```Python hl_lines="9  17"
{!> ../../docs_src/request_files/tutorial001_02.py!}
```

////

## `UploadFile` mit zusätzlichen Metadaten

Sie können auch `File()` zusammen mit `UploadFile` verwenden, um zum Beispiel zusätzliche Metadaten zu setzen:

//// tab | Python 3.9+

```Python hl_lines="9  15"
{!> ../../docs_src/request_files/tutorial001_03_an_py39.py!}
```

////

sqlite_file_name = "database.db"
sqlite_url = f"sqlite:///{sqlite_file_name}"

connect_args = {"check_same_thread": False}
engine = create_engine(sqlite_url, connect_args=connect_args)


def create_db_and_tables():
    SQLModel.metadata.create_all(engine)


def get_session():
    with Session(engine) as session:
        yield session


app = FastAPI()


@app.on_event("startup")
def on_startup():
    create_db_and_tables()

sqlite_file_name = "database.db"
sqlite_url = f"sqlite:///{sqlite_file_name}"

connect_args = {"check_same_thread": False}
engine = create_engine(sqlite_url, connect_args=connect_args)


def create_db_and_tables():
    SQLModel.metadata.create_all(engine)


def get_session():
    with Session(engine) as session:
        yield session


SessionDep = Annotated[Session, Depends(get_session)]
app = FastAPI()

If you have a group of **query parameters** that are related, you can create a **Pydantic model** to declare them.

This would allow you to **re-use the model** in **multiple places** and also to declare validations and metadata for all the parameters at once. 😎

/// note

This is supported since FastAPI version `0.115.0`. 🤓

///

## Query Parameters with a Pydantic Model

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository.metadata;

import javax.inject.Inject;

import org.apache.maven.artifact.ArtifactScopeEnum;
import org.codehaus.plexus.testing.PlexusTest;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

          <role-hint>default</role-hint>
          <field-name>resolutionErrorHandler</field-name>
        </requirement>
        <requirement>
          <role>org.apache.maven.artifact.metadata.ArtifactMetadataSource</role>
          <role-hint>test</role-hint>
          <field-name>source</field-name>
        </requirement>
        <requirement>
          <role>org.codehaus.plexus.PlexusContainer</role>

sqlite_file_name = "database.db"
sqlite_url = f"sqlite:///{sqlite_file_name}"

connect_args = {"check_same_thread": False}
engine = create_engine(sqlite_url, connect_args=connect_args)


def create_db_and_tables():
    SQLModel.metadata.create_all(engine)


def get_session():
    with Session(engine) as session:
        yield session


SessionDep = Annotated[Session, Depends(get_session)]
app = FastAPI()

sqlite_file_name = "database.db"
sqlite_url = f"sqlite:///{sqlite_file_name}"

connect_args = {"check_same_thread": False}
engine = create_engine(sqlite_url, connect_args=connect_args)


def create_db_and_tables():
    SQLModel.metadata.create_all(engine)


def get_session():
    with Session(engine) as session:
        yield session


app = FastAPI()


@app.on_event("startup")
def on_startup():
    create_db_and_tables()

            }
            final String pluginUrl = url + (url.endsWith("/") ? name + "/" : "/" + name + "/");
            try {
                final String pluginMetaContent = getRepositoryContent(pluginUrl + "maven-metadata.xml");
                try (final InputStream is = new ByteArrayInputStream(pluginMetaContent.getBytes(Constants.UTF_8_CHARSET))) {
                    final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();