import org.apache.maven.internal.impl.DefaultLookup;
import org.apache.maven.internal.impl.DefaultSession;
import org.apache.maven.internal.impl.InternalMavenSession;
import org.apache.maven.model.building.ModelBuildingException;
import org.apache.maven.model.building.ModelProblem;
import org.apache.maven.repository.RepositorySystem;
import org.apache.maven.repository.internal.MavenRepositorySystemUtils;

<div class="termy">

```console
$ pip install sqlmodel
---> 100%
```

</div>

## Создание приложения с единственной моделью { #create-the-app-with-a-single-model }

Сначала мы создадим самую простую первую версию приложения с одной моделью **SQLModel**.

Позже мы улучшим его, повысив безопасность и универсальность, добавив **несколько моделей**. 🤓

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package gradlebuild.identity.model


data class ReleasedVersions(
    val latestReleaseSnapshot: ReleasedVersion,
    val latestRc: ReleasedVersion,
    val finalReleases: List<ReleasedVersion>

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package gradlebuild.buildutils.model


data class ReleasedVersions(
    val latestReleaseSnapshot: ReleasedVersion,
    val latestRc: ReleasedVersion,
    val finalReleases: List<ReleasedVersion>

import org.apache.maven.artifact.resolver.ArtifactResolutionResult;
import org.apache.maven.bridge.MavenRepositorySystem;
import org.apache.maven.model.Dependency;
import org.apache.maven.model.Plugin;
import org.apache.maven.model.Repository;
import org.apache.maven.settings.Mirror;
import org.apache.maven.settings.Server;
import org.eclipse.aether.RepositorySystemSession;

/**
 * @since 3.0-alpha

import org.apache.maven.toolchain.io.ToolchainsReader;
import org.apache.maven.toolchain.io.ToolchainsWriter;
import org.apache.maven.toolchain.merge.MavenToolchainMerger;
import org.apache.maven.toolchain.model.PersistedToolchains;
import org.apache.maven.toolchain.model.TrackableBase;
import org.codehaus.plexus.interpolation.EnvarBasedValueSource;
import org.codehaus.plexus.interpolation.InterpolationException;

import org.apache.maven.api.xml.XmlService;
import org.apache.maven.impl.DefaultMessageBuilderFactory;
import org.apache.maven.lifecycle.MojoExecutionConfigurator;
import org.apache.maven.model.Plugin;
import org.apache.maven.model.PluginExecution;
import org.apache.maven.plugin.MojoExecution;
import org.apache.maven.plugin.descriptor.MojoDescriptor;
import org.apache.maven.plugin.descriptor.Parameter;

import org.apache.maven.api.cache.RequestCacheFactory;
import org.apache.maven.api.cli.extensions.CoreExtension;
import org.apache.maven.api.di.Inject;
import org.apache.maven.api.di.Named;
import org.apache.maven.api.model.Plugin;
import org.apache.maven.api.services.ArtifactCoordinatesFactory;
import org.apache.maven.api.services.ArtifactManager;
import org.apache.maven.api.services.ArtifactResolver;

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package gradlebuild.buildutils.model

import org.gradle.util.GradleVersion


data class ReleasedVersion(val version: String, val buildTime: String) {
    fun gradleVersion() = GradleVersion.version(version)

...이 응답은 이렇게 반환됩니다:

```json
{
  "message": "Hello World"
}
```

물론 JSON 포맷팅보다 더 유용하게 활용할 방법을 찾을 수 있을 것입니다. 😉

### `orjson` 또는 응답 모델 { #orjson-or-response-model }

성능이 목적이라면, `orjson` 응답을 사용하는 것보다 [응답 모델](../tutorial/response-model.md)을 사용하는 편이 더 나을 가능성이 큽니다.

응답 모델을 사용하면 FastAPI는 중간 단계(예: `jsonable_encoder`로의 변환) 없이 Pydantic을 사용해 데이터를 JSON으로 직렬화합니다. 이런 중간 단계는 다른 경우에 발생합니다.