---

コード例に戻りましょう、**FastAPI** は次のようになります:

- `GET`および`PUT`リクエストのパスに`item_id` があることを検証します。
- `item_id`が`GET`および`PUT`リクエストに対して`int` 型であることを検証します。
  - そうでない場合は、クライアントは有用で明確なエラーが表示されます。
- `GET` リクエストに対してオプションのクエリパラメータ `q` (`http://127.0.0.1:8000/items/foo?q=somequery` のように) が存在するかどうかを調べます。
  - パラメータ `q` は `= None` で宣言されているので、オプションです。
  - `None`がなければ必須になります（`PUT`の場合のボディと同様です）。
- `PUT` リクエストを `/items/{item_id}` に送信する場合は、ボディを JSON として読み込みます:

		}

		// Verify response of the V2 signed HTTP request.
		// initialize HTTP NewRecorder, this records any mutations to response writer inside the handler.
		recV2 := httptest.NewRecorder()
		// construct HTTP request for PUT bucket policy endpoint.
		reqV2, err := newTestSignedRequestV2(http.MethodGet, getBucketLocationURL("", testCase.bucketName), 0, nil, testCase.accessKey, testCase.secretKey, nil)
		if err != nil {

            Map<String, Object> options = new HashMap<>(3);
            options.put(ModelProcessor.IS_STRICT, strict);
            options.put(ModelProcessor.SOURCE, modelSource);
            options.put(ModelReader.ROOT_DIRECTORY, request.getRootDirectory());

            InputSource source;
            if (request.isLocationTracking()) {

type ErrBucketConflict Error

func (e ErrBucketConflict) Error() string {
	return e.Bucket + " bucket conflict error: " + e.Err.Error()
}

// Store dns record store
type Store interface {
	Put(bucket string) error
	Get(bucket string) ([]SrvRecord, error)
	Delete(bucket string) error
	List() (map[string][]SrvRecord, error)
	DeleteRecord(record SrvRecord) error
	Close() error
	String() string

here till I'm somebody else"--but, oh dear!' cried Alice, with a
sudden burst of tears, `I do wish they WOULD put their heads
down!  I am so VERY tired of being all alone here!'

  As she said this she looked down at her hands, and was
surprised to see that she had put on one of the Rabbit's little
white kid gloves while she was talking.  `How CAN I have done

이전 코드 예제로 돌아가서, **FastAPI**는 다음처럼 처리합니다:

* `GET` 및 `PUT` 요청에 `item_id`가 경로에 있는지 검증.
* `GET` 및 `PUT` 요청에 `item_id`가 `int` 타입인지 검증.
    * 그렇지 않다면 클라이언트는 유용하고 명확한 에러를 볼 수 있습니다.
* `GET` 요청에 `q`라는 선택적인 쿼리 매개변수가 검사(`http://127.0.0.1:8000/items/foo?q=somequery`처럼).
    * `q` 매개변수는 `= None`으로 선언되었기 때문에 선택사항입니다.
    * `None`이 없다면 필수사항입니다(`PUT`의 경우와 마찬가지로).
* `/items/{item_id}`으로의 `PUT` 요청은 본문을 JSON으로 읽음:
    * `name`을 필수 속성으로 갖고 `str` 형인지 검사.

  private static final ImmutableClassToInstanceMap<Object> PARAMETER_VALUES =
      ImmutableClassToInstanceMap.builder()
          .put(int.class, 1)
          .put(long.class, 1L)
          .put(double.class, 1.0)
          .put(TimeUnit.class, SECONDS)
          .build();

 *
 * <p>This is a classic &quot;bounded buffer&quot;, in which a fixed-sized array holds elements
 * inserted by producers and extracted by consumers. Once created, the capacity cannot be increased.
 * Attempts to {@code put} an element into a full queue will result in the operation blocking;
 * attempts to {@code take} an element from an empty queue will similarly block.
 *

  private static final ImmutableClassToInstanceMap<Object> PARAMETER_VALUES =
      ImmutableClassToInstanceMap.builder()
          .put(int.class, 1)
          .put(long.class, 1L)
          .put(double.class, 1.0)
          .put(TimeUnit.class, SECONDS)
          .build();

                if (snapshotMetadata == null) {
                    snapshotMetadata = new LocalSnapshotMetadata(artifact, timestamp);
                    snapshots.put(key, snapshotMetadata);
                }
                snapshotMetadata.bind(artifact);
            }
        }

        return Collections.emptyList();
    }

    @Override