# 기능 { #features }

## FastAPI의 기능 { #fastapi-features }

**FastAPI**는 다음과 같은 기능을 제공합니다:

### 개방형 표준을 기반으로 { #based-on-open-standards }

* [**OpenAPI**](https://github.com/OAI/OpenAPI-Specification): <dfn title="또한 다음으로도 불림: 엔드포인트, 라우트">경로</dfn> <dfn title="HTTP 메소드(POST, GET, PUT, DELETE 등)로도 알려짐">처리</dfn>, 매개변수, 요청 본문, 보안 등의 선언을 포함하여 API를 생성합니다.
* [**JSON Schema**](https://json-schema.org/)를 사용한 자동 데이터 모델 문서화(OpenAPI 자체가 JSON Schema를 기반으로 하기 때문입니다).

    assertEquals("Three Objects should be delivered.", 3, objectEvents.size());
    assertEquals("String fixture must be first object delivered.", EVENT, objectEvents.get(0));
    assertEquals("Object fixture must be second object delivered.", objEvent, objectEvents.get(1));
    assertEquals(
        "Comparable fixture must be thirdobject delivered.", compEvent, objectEvents.get(2));

    // Check the Catcher<Comparable<?>>...

    assertEquals("Three Objects should be delivered.", 3, objectEvents.size());
    assertEquals("String fixture must be first object delivered.", EVENT, objectEvents.get(0));
    assertEquals("Object fixture must be second object delivered.", objEvent, objectEvents.get(1));
    assertEquals(
        "Comparable fixture must be thirdobject delivered.", compEvent, objectEvents.get(2));

    // Check the Catcher<Comparable<?>>...

 * Futures#transform(ListenableFuture, com.google.common.base.Function, Executor) Futures.transform}
 * (or {@link FluentFuture#transform(com.google.common.base.Function, Executor)
 * FluentFuture.transform}), but you will often find it easier to use a framework. Frameworks
 * automate the process, often adding features like monitoring, debugging, and cancellation.

 * Futures#transform(ListenableFuture, com.google.common.base.Function, Executor) Futures.transform}
 * (or {@link FluentFuture#transform(com.google.common.base.Function, Executor)
 * FluentFuture.transform}), but you will often find it easier to use a framework. Frameworks
 * automate the process, often adding features like monitoring, debugging, and cancellation.

    @Internal
    AntFixture fixture

    @Internal
    FileSystemOperations fileSystemOperations

    @Inject
    AntFixtureStop(FileSystemOperations fileSystemOperations) {
        super(fileSystemOperations)
        this.fileSystemOperations = fileSystemOperations
    }

    void setFixture(AntFixture fixture) {
        assert this.fixture == null
        this.fixture = fixture;

from typing import Annotated

import pytest
from fastapi import Depends, FastAPI, Security
from fastapi.testclient import TestClient


@pytest.fixture(name="call_counter")
def call_counter_fixture():
    return {"count": 0}


@pytest.fixture(name="app")
def app_fixture(call_counter: dict[str, int]):
    def get_db():
        call_counter["count"] += 1
        return f"db_{call_counter['count']}"

 *
 * <h3>Alternatives</h3>
 *
 * <h4>Frameworks</h4>
 *
 * <p>When chaining together a graph of asynchronous operations, you will often find it easier to
 * use a framework. Frameworks automate the process, often adding features like monitoring,
 * debugging, and cancellation. Examples of frameworks include:
 *
 * <ul>
 *   <li><a href="https://dagger.dev/producers.html">Dagger Producers</a>
 * </ul>
 *

    return tearDown;
  }

  // Features

  private final Set<Feature<?>> features = new LinkedHashSet<>();

  /**
   * Configures this builder to produce tests appropriate for the given features. This method may be
   * called more than once to add features in multiple groups.
   */
  @CanIgnoreReturnValue
  public B withFeatures(Feature<?>... features) {
    return withFeatures(asList(features));
  }

import static com.google.common.util.concurrent.ExecutionSequencer.RunningState.STARTED;
import static com.google.common.util.concurrent.Futures.immediateCancelledFuture;
import static com.google.common.util.concurrent.Futures.immediateFuture;
import static com.google.common.util.concurrent.Futures.immediateVoidFuture;
import static com.google.common.util.concurrent.MoreExecutors.directExecutor;
import static java.util.Objects.requireNonNull;