# 기능

## FastAPI의 기능

**FastAPI**는 다음과 같은 기능을 제공합니다:

### 개방형 표준을 기반으로

* <abbr title="엔드포인트, 라우트로도 알려져 있습니다">경로</abbr><abbr title="POST, GET, PUT, DELETE와 같은 HTTP 메소드로 알려져 있습니다">작동</abbr>, 매개변수, 본문 요청, 보안 그 외의 선언을 포함한 API 생성을 위한 <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank"><strong>OpenAPI</strong></a>

    public static NbtAddress getByName(final String host, final int type, final String scope) throws UnknownHostException {

        return getByName(host, type, scope, null);
    }

    /**
     * Determines the address of a host given its host name with a specific server.
     * The additional <code>svr</code> parameter specifies the address to
     * query. This might be the address of a specific host, a name server,
     * or a broadcast address.

    Duplex calls require HTTP/2. If HTTP/1 is established instead the duplex call will fail. The
    most common use of duplex calls is [gRPC][grpc_http2].

 *  New: Prevent OkHttp from retransmitting a request body by overriding `RequestBody.isOneShot()`.
    This is most useful when writing the request body is destructive.

			return
		}
		ip := "127.0.0.1"
		host, _ := mustSplitHostPort(globalLocalNodeName)
		if host != "" {
			if net.ParseIP(host) != nil {
				ip = host
			} else {
				ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
				defer cancel()

				haddrs, err := globalDNSCache.LookupHost(ctx, host)
				if err == nil {
					ip = haddrs[0]
				}
			}
		}

	return ok
}

// Verify request has AWS PreSign Version '2'.
func isRequestPresignedSignatureV2(r *http.Request) bool {
	_, ok := r.Form[xhttp.AmzAccessKeyID]
	return ok
}

// Verify if request has AWS Post policy Signature Version '4'.
func isRequestPostPolicySignatureV4(r *http.Request) bool {
	mediaType, _, err := mime.ParseMediaType(r.Header.Get(xhttp.ContentType))
	if err != nil {
		return false
	}

                * `url`: A URL to the target host. This URL supports Server Variables
                and MAY be relative, to indicate that the host location is relative
                to the location where the OpenAPI document is being served. Variable
                substitutions will be made when a variable is named in `{`brackets`}`.
                * `description`: An optional string describing the host designated by

		{
			name:   "GET apis",
			method: http.MethodGet,
			path:   kmsAPIsPath,
		},
		{
			name:   "GET version",
			method: http.MethodGet,
			path:   kmsVersionPath,
		},
		{
			name:   "POST key create",
			method: http.MethodPost,
			path:   kmsKeyCreatePath,
			query:  map[string]string{"key-id": "master-key-id"},
		},
		{
			name:   "GET key list",
			method: http.MethodGet,

     */
    protected boolean containsAuthenticationData(final HttpServletRequest request) {
        if (logger.isDebugEnabled()) {
            logger.debug("HTTP Method: {}", request.getMethod());
        }
        if (!"POST".equalsIgnoreCase(request.getMethod())) {
            return false;
        }
        final Map<String, String[]> params = request.getParameterMap();
        if (logger.isDebugEnabled()) {

                org = mailingList.getUnsubscribe();
                val = interpolate(org);
                if (org != val) {
                    mailingList.setUnsubscribe(val);
                }
                // Post
                org = mailingList.getPost();
                val = interpolate(org);
                if (org != val) {
                    mailingList.setPost(val);
                }
                // Archive

* API作成のための<a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank"><strong>OpenAPI</strong></a>。これは、<abbr title="also known as: endpoints, routes">path</abbr> <abbr title="also known as HTTP methods, as POST, GET, PUT, DELETE">operations</abbr>の宣言、パラメータ、ボディリクエスト、セキュリティなどを含んでいます。
* <a href="http://json-schema.org/" class="external-link" target="_blank"><strong>JSONスキーマ</strong></a>を使用したデータモデルのドキュメント自動生成（OpenAPIはJSONスキーマに基づいている）。