*       contents of the current one (for example {@link #transform})
 *   <li>element extraction methods which facilitate the retrieval of certain elements (for example
 *       {@link #last})
 *   <li>query methods which answer questions about the {@code FluentIterable}'s contents (for
 *       example {@link #anyMatch})
 *   <li>conversion methods which copy the {@code FluentIterable}'s contents into a new collection

  - **クッキーセッション**
  - ...などなど。

## パフォーマンス

独立した TechEmpower のベンチマークでは、Uvicorn で動作する**FastAPI**アプリケーションが、<a href="https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7" class="external-link" target="_blank">Python フレームワークの中で最も高速なものの 1 つ</a>であり、Starlette と Uvicorn（FastAPI で内部的に使用されています）にのみ下回っていると示されています。

}

public abstract interface class okhttp3/AsyncDns {
	public static final field Companion Lokhttp3/AsyncDns$Companion;
	public static final field TYPE_A I
	public static final field TYPE_AAAA I
	public abstract fun query (Ljava/lang/String;Lokhttp3/AsyncDns$Callback;)V
}

public abstract interface class okhttp3/AsyncDns$Callback {
	public abstract fun onFailure (Ljava/lang/String;Ljava/io/IOException;)V

  // absence of the evicted pod.  So for example you can prevent all voluntary
  // evictions by specifying "100%".
  // +optional
  optional k8s.io.apimachinery.pkg.util.intstr.IntOrString minAvailable = 1;

  // Label query over pods whose evictions are managed by the disruption
  // budget.
  // A null selector selects no pods.
  // An empty selector ({}) also selects no pods, which differs from standard behavior of selecting all pods.

                                  type: string
                                httpQueryParameterName:
                                  description: Hash based on a specific HTTP query
                                    parameter.
                                  type: string
                                maglev:
                                  description: The Maglev load balancer implements

     * SID_TYPE_USER.
     * 
     * @param authorityServerName The server from which the local groups will be queried.
     * @param auth The credentials required to query groups and group members.
     * @param flags Flags that control the behavior of the operation. When all
     * name associated with SIDs will be required, the SID_FLAG_RESOLVE_SIDS

* **Editor ondersteuning**.
* **Type checks**.

...en **FastAPI** gebruikt dezelfde declaraties om:

* **Vereisten te definïeren **: van request pad parameters, query parameters, headers, bodies, dependencies, enz.
* **Data te converteren**: van de request naar het vereiste type.
* **Data te valideren**: afkomstig van elke request:

# Segurança - Primeiros Passos

Vamos imaginar que você tem a sua API **backend** em algum domínio.

E você tem um **frontend** em outro domínio ou em um path diferente no mesmo domínio (ou em uma aplicação mobile).

E você quer uma maneira de o frontend autenticar o backend, usando um **username** e **senha**.

Nós podemos usar o **OAuth2** junto com o **FastAPI**.

* **Sự hỗ trợ từ các trình soạn thảo**.
* **Kiểm tra kiểu dữ liệu (type checking)**.

...và **FastAPI** sử dụng các khia báo để:

* **Định nghĩa các yêu cầu**: từ tham số đường dẫn của request, tham số query, headers, bodies, các phụ thuộc (dependencies),...
* **Chuyển dổi dữ liệu*: từ request sang kiểu dữ liệu được yêu cầu.
* **Kiểm tra tính đúng đắn của dữ liệu**: tới từ mỗi request:

		return errCode
	}

	clientETag, err := etag.FromContentMD5(r.Header)
	if err != nil {
		return ErrInvalidDigest
	}

	// Extract either 'X-Amz-Content-Sha256' header or 'X-Amz-Content-Sha256' query parameter (if V4 presigned)
	// Do not verify 'X-Amz-Content-Sha256' if skipSHA256.
	var contentSHA256 []byte
	if skipSHA256 := skipContentSha256Cksum(r); !skipSHA256 && isRequestPresignedSignatureV4(r) {