CharMatcher.inRange('a', 'z').or(CharMatcher.inRange('A', 'Z'));

  private static final CharMatcher PART_CHAR_MATCHER =
      DIGIT_MATCHER.or(LETTER_MATCHER).or(DASH_MATCHER);

  /**
   * Helper method for {@link #validateSyntax(List)}. Validates that one part of a domain name is
   * valid.
   *
   * @param part The domain name part to be validated
   * @param isFinalPart Is this the final (rightmost) domain part?

                }
            }
        } catch (Exception e) {
            log.error("Error validating key lengths", e);
            return false;
        }
    }

    /**
     * Helper class to hold encryption results
     */
    private static class EncryptionResult {
        final byte[] ciphertext;
        final byte[] authTag;

        EncryptionResult(byte[] ciphertext, byte[] authTag) {

# BEGIN TF CACHE HELPER OPTIONS
# Options when using remote execution
# WARNING: THESE OPTIONS WONT WORK IF YOU DO NOT HAVE PROPER AUTHENTICATION AND PERMISSIONS

# Use --config=tf_public_cache to try and use the TensorFlow public build cache

In den nächsten Kapiteln werde ich Ihnen mehr **konkrete Rezepte** für das Deployment von FastAPI-Anwendungen geben.

Aber schauen wir uns zunächst einmal diese grundlegenden **konzeptionellen Ideen** an. Diese Konzepte gelten auch für jede andere Art von Web-API. 💡

## Sicherheit – HTTPS { #security-https }

Im [vorherigen Kapitel über HTTPS](https.md) haben wir erfahren, wie HTTPS Verschlüsselung für Ihre API bereitstellt.

import org.codelibs.core.misc.Tuple3;
import org.codelibs.fess.Constants;
import org.codelibs.fess.exception.FessSystemException;
import org.codelibs.fess.exception.JobProcessingException;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.opensearch.client.SearchEngineClient;
import org.codelibs.fess.opensearch.config.exbhv.ThumbnailQueueBhv;

    }

    // ===================================================================================
    //                                                                    Helper Classes
    //                                                                    ================

    /**
     * Testable subclass that bypasses ComponentUtil dependencies.

}

// assertEqualSQL for assert that the sql is equal, this method will ignore quote, and dialect specials.
func assertEqualSQL(t *testing.T, expected string, actually string) {
	t.Helper()

	// replace SQL quote, convert into postgresql like ""
	expected = replaceQuoteInSQL(expected)
	actually = replaceQuoteInSQL(actually)

	}

	req, err := newTestSignedRequestV4(method, path, 0, nil, accessKey, secretKey, nil)
	if err != nil {
		t.Fatal(err)
	}
	return req
}

// setupKMSUser is a test helper that creates a new user with the provided access key and secret key
// and applies the given policy to the user.
func setupKMSUser(t *testing.T, accessKey, secretKey, p string) {
	ctx := t.Context()

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

// Package cmd This file implements helper functions to validate Streaming AWS
// Signature Version '4' authorization header.
package cmd

import (
	"bufio"
	"bytes"
	"encoding/hex"
	"errors"
	"fmt"
	"hash"
	"io"
	"net/http"
	"strings"

            write(escapeKey(key));
            write(" = ");
            write(typed ? value : escapeJava(value));
            writeln(null);
        }

        /**
         * Helper method for writing a line with the platform specific line
         * ending.
         *
         * @param s the content of the line (may be <b>null</b>)
         * @throws IOException if an error occurs
         */