from fastapi import FastAPI
from fastapi.testclient import TestClient
from pydantic import BaseModel

app = FastAPI()


class Product(BaseModel):
    name: str
    description: str = None  # type: ignore
    price: float


@app.get("/product")
async def create_item(product: Product):
    return product


client = TestClient(app)


def test_get_with_body():

import org.gradle.api.Describable
import org.gradle.api.provider.Property
import org.gradle.api.provider.ValueSource
import org.gradle.api.provider.ValueSourceParameters
import org.gradle.api.tasks.Optional


abstract class BuildTimestampFromBuildReceiptValueSource : ValueSource<String, BuildTimestampFromBuildReceiptValueSource.Parameters>, Describable {

    interface Parameters : ValueSourceParameters {

/**
 * A task used for cleaning up all accepted API changes. The functionality is called whenever the release process initiates "branching".
 */
@DisableCachingByDefault(because = "Not worth caching")
abstract class CleanAcceptedApiChanges extends DefaultTask {

    @PathSensitive(PathSensitivity.ABSOLUTE)
    @InputDirectory
    abstract DirectoryProperty getJsonFileDirectory()

    @TaskAction
    void clean() {

package gradlebuild.docs.dsl.docbook;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.LinkedList;

public class DefaultGenerationListener implements GenerationListener {
    private static final Logger LOGGER = LoggerFactory.getLogger(DefaultGenerationListener.class);
    private final LinkedList<String> contextStack = new LinkedList<String>();

    @Override
    public void warning(String message) {

<a href="http://127.0.0.1:8000/items/4.2" class="external-link" target="_blank">http://127.0.0.1:8000/items/4.2</a> で見られるように、intのかわりに `float` が与えられた場合にも同様なエラーが表示されます。

/// check | 確認

したがって、Pythonの型宣言を使用することで、**FastAPI**はデータのバリデーションを行います。

表示されたエラーには問題のある箇所が明確に指摘されていることに注意してください。

これは、APIに関連するコードの開発およびデバッグに非常に役立ちます。

///

## ドキュメント

/**
 * Assists in resolving the dependencies of a plugin. <strong>Warning:</strong> This is an internal utility class that
 * is only public for technical reasons, it is not part of the public API. In particular, this class can be changed or
 * deleted without prior notice.
 *
 * @since 3.0
 */
@Named
@Singleton
public class DefaultPluginDependenciesResolver implements PluginDependenciesResolver {

/// info | Информация

Вы можете прочитать больше про обработчики `lifespan` в Starlette в <a href="https://www.starlette.dev/lifespan/" class="external-link" target="_blank">документации Starlette по Lifespan</a>.

  EXPECT_EQ(assign, 1);
  int id = TF_OpIsStateful("Identity", status.get());
  ASSERT_EQ(TF_OK, TF_GetCode(status.get())) << TF_Message(status.get());
  EXPECT_EQ(id, 0);
}

class ShapeInferenceTest : public ::testing::Test {
 protected:
  ShapeInferenceTest()
      : status_(TF_NewStatus()), tfe_context_options_(TFE_NewContextOptions()) {
    tfe_context_ = TFE_NewContext(tfe_context_options_, status_);

import java.util.Map;

public class ClassDocExtensionsBuilder {
    private final DslDocModel model;
    private final GenerationListener listener;

    public ClassDocExtensionsBuilder(DslDocModel model, GenerationListener listener) {
        this.model = model;
        this.listener = listener;
    }

    /**
     * Builds the extension meta-data for the given class.
     */

Ahora, ejecuta el comando `fastapi` con tu archivo:

<div class="termy">

```console
$ fastapi dev main.py

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

Y abre la documentación en <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.