<div class="termy">

```console
$ fastapi dev

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

</div>

Ensuite, allez sur l'UI `/docs`, vous verrez que **FastAPI** utilise ces **modèles** pour **documenter** l'API, et les utilisera aussi pour **sérialiser** et **valider** les données.

<div class="screenshot">
<img src="/img/tutorial/sql-databases/image01.png">

	// Calculate signature.
	newSignature := getSignature(signingKey, stringToSign)

	return newSignature
}

// calculateSeedSignature - Calculate seed signature in accordance with
//   - http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-streaming.html
//
// returns signature, error otherwise if the signature mismatches or any other
// error while parsing and validating.

   * preferred assignment.)
   *
   * @since 8.0
   */
  public static final byte DC1 = 17; // aka XON

  /**
   * Transmission On: Although originally defined as DC1, this ASCII control character is now better
   * known as the XON code used for software flow control in serial communications. The main use is

import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin boost doc.
 *
 */
public class ApiAdminBoostdocAction extends FessApiAdminAction {

    /**
     * Default constructor.
     */
    public ApiAdminBoostdocAction() {
        super();
    }

        // Test with script parameters
        configParameters = "field.script.title=doc.title\nfield.script.boost=2.0";
        result = ParameterUtil.createConfigParameterMap(configParameters);
        assertEquals(2, result.get(ConfigName.SCRIPT).size());
        assertEquals("doc.title", result.get(ConfigName.SCRIPT).get("title"));
        assertEquals("2.0", result.get(ConfigName.SCRIPT).get("boost"));

# WebSockets { #websockets }

**FastAPI**で[WebSockets](https://developer.mozilla.org/en-US/docs/Web/API/WebSockets_API)が使用できます。

## `websockets`のインストール { #install-websockets }

[仮想環境](../virtual-environments.md)を作成し、それを有効化してから、「WebSocket」プロトコルを簡単に使えるようにするPythonライブラリの`websockets`をインストールしてください。

<div class="termy">

```console
$ pip install websockets

---> 100%
```

</div>

## WebSockets クライアント { #websockets-client }

        LabelType[] labelTypes = parser.getLabelTypes();
        assertEquals(3, labelTypes.length);
    }

    @Test
    public void test_escape() {
        // https://www.google.com/support/enterprise/static/gsa/docs/admin/70/gsa_doc_set/admin_crawl/url_patterns.html#1076127
        assertEscapePattern("", "# Test");
        assertEscapePattern(".*\\Q!/\\E.*", "!/");
        assertEscapePattern("\\Qindex.html\\E", "index.html");

 * 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.docs;

import com.google.common.io.CharStreams;
import org.gradle.api.GradleException;
import org.gradle.internal.UncheckedException;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;

[Starlette](https://www.starlette.dev/testclient/) 덕분에 **FastAPI** 애플리케이션을 테스트하는 일은 쉽고 즐거운 일이 되었습니다.

이는 [HTTPX](https://www.python-httpx.org)를 기반으로 하며, 이는 Requests를 기반으로 설계되었기 때문에 매우 친숙하고 직관적입니다.

이를 사용하면 **FastAPI**에서 [pytest](https://docs.pytest.org/)를 직접 사용할 수 있습니다.

## `TestClient` 사용하기 { #using-testclient }

/// info | 정보

`TestClient` 사용하려면, 우선 [`httpx`](https://www.python-httpx.org)를 설치해야 합니다.

```Python hl_lines="3"
import os

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

/// tip | Dica

O segundo argumento para [`os.getenv()`](https://docs.python.org/3.8/library/os.html#os.getenv) é o valor padrão a ser retornado.

Se não for fornecido, é `None` por padrão, Aqui fornecemos `"World"` como o valor padrão a ser usado.

///