다음과 함께 사용할 수 있는 모든 함수:

* <a href="https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager" class="external-link" target="_blank">`@contextlib.contextmanager`</a> 또는
* <a href="https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager" class="external-link" target="_blank">`@contextlib.asynccontextmanager`</a>

는 **FastAPI**의 의존성으로 사용할 수 있습니다.

사실, FastAPI는 내부적으로 이 두 데코레이터를 사용합니다.

///

Open your browser at <a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>.

You will see the JSON response as:

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

### Interactive API docs { #interactive-api-docs }

Now go to <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

예시:

* <a href="https://code.visualstudio.com/docs/python/environments#_select-and-activate-an-environment" class="external-link" target="_blank">VS Code</a>
* <a href="https://www.jetbrains.com/help/pycharm/creating-virtual-environment.html" class="external-link" target="_blank">PyCharm</a>

/// tip | 팁

이 설정은 보통 가상 환경을 **처음 만들었을 때 한 번만** 해주면 됩니다.

///

## 가상 환경 비활성화

proprietary headers se pueden añadir <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">usando el prefijo 'X-'</a>.

Pero si tienes custom headers que deseas que un cliente en un navegador pueda ver, necesitas añadirlos a tus configuraciones de CORS ([CORS (Cross-Origin Resource Sharing)](cors.md){.internal-link target=_blank}) usando el parámetro `expose_headers` documentado en <a href="https://www.starlette.io/middleware/#corsmiddleware"...

							<a class="nav-link active" href="${eolLink}" target="_olh"><em class="fas fa-times-circle text-danger"></a>
						</li>
					</c:if>
					<c:if test="${developmentMode}">
						<li class="nav-item" data-bs-toggle="tooltip" data-placement="left"
							title="<la:message key="labels.development_mode_warning" />"
						><a class="nav-link active" href="${installationLink}" target="_olh"><em

							<a class="nav-link active" href="${eolLink}" target="_olh"><em class="fas fa-times-circle text-danger"></a>
						</li>
					</c:if>
					<c:if test="${developmentMode}">
						<li class="nav-item" data-bs-toggle="tooltip" data-placement="left"
							title="<la:message key="labels.development_mode_warning" />"
						><a class="nav-link active" href="${installationLink}" target="_olh"><em

  <description>A simple maven-test.</description>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>17</maven.compiler.source>
    <maven.compiler.target>17</maven.compiler.target>
  </properties>

  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>com.squareup.okhttp3</groupId>
        <artifactId>okhttp-bom</artifactId>

import static java.lang.annotation.ElementType.TYPE;

import java.lang.annotation.Target;
import org.jspecify.annotations.NullMarked;

/**
 * Disables Animal Sniffer's checking of compatibility with older versions of Java/Android.
 *
 * <p>Each package's copy of this annotation needs to be listed in our {@code pom.xml}.
 */
@Target({METHOD, CONSTRUCTOR, TYPE, FIELD})
@NullMarked

import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * This annotation indicates that a type is automatically generated.
 *
 * @since 4.0.0
 */
@Experimental
@Documented
@Retention(RetentionPolicy.CLASS)
@Target(ElementType.TYPE)

Oluşturulan şema <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md" class="external-link" target="_blank">OpenAPI</a> standardına uygun olduğu için birçok uyumlu araç mevcuttur.

Bu sayede, **FastAPI**'ın bizzat kendisi <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a> sayfasından erişebileceğiniz alternatif (ReDoc kullanan) bir API dokümantasyonu sağlar: