AuthToken  string          `json:"authToken"`
	Transport  *http.Transport `json:"-"`
	ClientCert string          `json:"clientCert"`
	ClientKey  string          `json:"clientKey"`
}

// Validate WebhookArgs fields
func (w WebhookArgs) Validate() error {
	if !w.Enable {
		return nil
	}
	if w.Endpoint.IsEmpty() {
		return errors.New("endpoint empty")
	}

import kotlinx.validation.ApiValidationExtension
import kotlinx.validation.KotlinApiBuildTask
import kotlinx.validation.KotlinApiCompareTask

plugins {
  id("com.vanniktech.maven.publish.base")
  id("binary-compatibility-validator")
}

configure<MavenPublishBaseExtension> {
  publishToMavenCentral(automaticRelease = true)
  signAllPublications()
  pom {
    name.set(project.name)

		}
		return false, azureToObjectError(err, az.Bucket, az.Prefix)
	}

	return len(resp.Segment.BlobItems) > 0, nil
}

type azureConf struct {
	madmin.TierAzure
}

func (conf azureConf) Validate() error {
	switch {
	case conf.AccountName == "":
		return errors.New("the account name is required")

		Enable     bool `json:"enable"`
		SkipVerify bool `json:"skipVerify"`
	} `json:"tls"`
	QueueDir   string `json:"queueDir"`
	QueueLimit uint64 `json:"queueLimit"`
}

// Validate NSQArgs fields
func (n NSQArgs) Validate() error {
	if !n.Enable {
		return nil
	}

	if n.NSQDAddress.IsEmpty() {
		return errors.New("empty nsqdAddress")
	}

	if n.Topic == "" {
		return errors.New("empty topic")
	}

        }
        buf.readOctetArray(contextHandle, 0, 20);
    }

    /**
     * Checks if the context handle has been invalidated (all zeros).
     * A successful unregistration typically results in a zeroed context handle.
     *
     * @return true if the context handle has been invalidated
     */
    public boolean isContextHandleInvalidated() {
        if (contextHandle == null) {
            return true;

```

</div>

Sonra `/docs` arayüzüne gidin; **FastAPI**’nin API’yi **dokümante etmek** için bu **modelleri** kullandığını göreceksiniz. Ayrıca veriyi **serialize** ve **validate** etmek için de onları kullanacaktır.

<div class="screenshot">
<img src="/img/tutorial/sql-databases/image01.png">
</div>

## Birden Fazla Model ile Uygulamayı Güncelleme { #update-the-app-with-multiple-models }

        // ======================
        String ALL = "all";
        String EACH = "each";
        String BUILD = "build";
        String INITIALIZE = "initialize";
        String VALIDATE = "validate";
        String SOURCES = "sources";
        String RESOURCES = "resources";
        String COMPILE = "compile";
        String READY = "ready";
        String PACKAGE = "package";

import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Test

/**
 * Jetty HTTP client.
 *
 * https://www.eclipse.org/jetty/documentation/current/http-client.html
 *
 * Baseline test if we ned to validate OkHttp behaviour against other popular clients.
 */
class JettyHttpClientTest {
  private val client = HttpClient()

  @StartStop
  private val server = MockWebServer()

  @BeforeEach fun setUp() {

			return val
		}
		// Skip it
		_, buf, err = msgp.ReadBytesZC(buf)
		if err != nil {
			return nil
		}
	}
	return nil
}

// validate checks if the data is valid.
// It does not check integrity of the stored data.
func (x xlMetaInlineData) validate() error {
	if len(x) == 0 {
		return nil
	}

	if !x.versionOK() {
		return fmt.Errorf("xlMetaInlineData: unknown version 0x%x", x[0])
	}

@Named
@Singleton
public class DefaultModelValidator implements ModelValidator {

    @Inject
    private org.apache.maven.model.validation.ModelValidator modelValidator;

    @Override
    public ModelValidationResult validate(Model model) {
        ModelValidationResult result = new ModelValidationResult();

        ModelBuildingRequest request =