# Paramètres de requête et validations de chaînes de caractères { #query-parameters-and-string-validations }

**FastAPI** vous permet de déclarer des informations et des validations supplémentaires pour vos paramètres.

Prenons cette application comme exemple :

{* ../../docs_src/query_params_str_validations/tutorial001_py310.py hl[7] *}

 * @author Martin Buchholz
 * @author Clément Roux
 */
@GwtCompatible
@NullUnmarked
public class Utf8Test extends TestCase {

  private static final ImmutableList<String> ILL_FORMED_STRINGS;

  static {
    ImmutableList.Builder<String> builder = ImmutableList.builder();
    char[] surrogates = {
      MAX_LOW_SURROGATE, MAX_HIGH_SURROGATE, MIN_LOW_SURROGATE, MIN_HIGH_SURROGATE,
    };

            out.origin_ctx = null;
        }
    }

    void resolveSids0(final String authorityServerName, final CIFSContext tc, final jcifs.SID[] sids) throws CIFSException {
        synchronized (this.sidCache) {
            try (DcerpcHandle handle = DcerpcHandle.getHandle("ncacn_np:" + authorityServerName + "[\\PIPE\\lsarpc]", tc)) {
                String server = authorityServerName;
                final int dot = server.indexOf('.');

    @Resource
    private OpenSearchDataService dataService;

    @Resource
    private FesenClient fesenClient;

    private OpenSearchRunner runner;

    @Override
    protected String prepareConfigFile() {
        return "app.xml";
    }

    @Override
    protected boolean isUseOneTimeContainer() {
        return true;
    }

    @Override

        assertEscaping(xmlEscaper, "'", ch);
      } else if (shouldEscapeQuotes && ch == '"') {
        assertEscaping(xmlEscaper, """, ch);
      } else {
        String input = String.valueOf(ch);
        String escaped = xmlEscaper.escape(input);
        assertWithMessage("char 0x" + Integer.toString(ch, 16) + " should not be escaped")
            .that(escaped)
            .isEqualTo(input);
      }

package compress

import (
	"fmt"
	"strings"

	"github.com/minio/minio/internal/config"
	"github.com/minio/pkg/v3/env"
)

// Config represents the compression settings.
type Config struct {
	Enabled        bool     `json:"enabled"`
	AllowEncrypted bool     `json:"allow_encryption"`
	Extensions     []string `json:"extensions"`
	MimeTypes      []string `json:"mime-types"`
}

import org.junit.jupiter.api.Test;

/**
 * Unit tests for DirectoryCacheEntry
 */
public class DirectoryCacheEntryTest {

    private DirectoryCacheEntry entry;
    private Smb2LeaseKey leaseKey;
    private String directoryPath = "/test/dir";

    @BeforeEach
    public void setUp() {
        leaseKey = new Smb2LeaseKey();
        entry = new DirectoryCacheEntry(directoryPath, leaseKey, DirectoryCacheScope.IMMEDIATE_CHILDREN);

        artifactResolver.resolve(b, remoteRepositories(), localRepository());
        assertLocalArtifactPresent(b);
    }

    @Override
    protected Artifact createArtifact(String groupId, String artifactId, String version, String type) throws Exception {
        // for the anonymous classes
        return super.createArtifact(groupId, artifactId, version, type);
    }

    @Test

	nsec := expDate.Nanosecond()
	loc := expDate.Location()
	if hr != 0 || m != 0 || sec != 0 || nsec != 0 || loc.String() != time.UTC.String() {
		return errLifecycleDateNotMidnight
	}

	*eDate = ExpirationDate{expDate}
	return nil
}

// MarshalXML encodes expiration date if it is non-zero and encodes
// empty string otherwise
func (eDate ExpirationDate) MarshalXML(e *xml.Encoder, startElement xml.StartElement) error {

            this.acceptedApiChanges = Collections.emptySet();
        }
    }

    @Override
    @SuppressWarnings("unchecked")
    public void execute(ViolationCheckContext context) {
        Map<String, Object> userData = (Map<String, Object>) context.getUserData();
        userData.put("acceptedApiChanges", acceptedApiChanges);
        userData.put("seenApiChanges", new HashSet<ApiChange>());
    }