- ""
        - -b
        - '*'
        - -d
        - 15090,15021,15020
        - --log_output_level=default:info
        - --run-validation
        - --skip-rule-apply
        image: gcr.io/istio-testing/proxyv2:latest
        name: istio-validation
        resources:
          limits:
            cpu: "2"
            memory: 1Gi
          requests:
            cpu: 100m

        - ""
        - -b
        - '*'
        - -d
        - 15090,15021,15020
        - --log_output_level=default:info
        - --run-validation
        - --skip-rule-apply
        image: gcr.io/istio-testing/proxyv2:latest
        name: istio-validation
        resources:
          limits:
            cpu: "2"
            memory: 1Gi
          requests:
            cpu: 100m

!!! check
    So, with the same Python type declaration, **FastAPI** gives you data validation.

    Notice that the error also clearly states exactly the point where the validation didn't pass.

    This is incredibly helpful while developing and debugging code that interacts with your API.

## Documentation

# `Request` class

You can declare a parameter in a *path operation function* or dependency to be of type `Request` and then you can access the raw request object directly, without any validation, etc.

You can import it directly from `fastapi`:

```python
from fastapi import Request
```

!!! tip

stdout '^panic: testing: fuzz target must not return a value \[recovered\]$'

-- go.mod --
module test
go 1.18
-- x_test.go --
package test

import "testing"

func FuzzReturnErr(f *testing.F) {
	f.Add("hello, validation!")
	f.Fuzz(func(t *testing.T, in string) string {
		return in
	})

# Body – Felder

So wie Sie zusätzliche Validation und Metadaten in Parametern der **Pfadoperation-Funktion** mittels `Query`, `Path` und `Body` deklarieren, können Sie auch innerhalb von Pydantic-Modellen zusätzliche Validation und Metadaten deklarieren, mittels Pydantics `Field`.

## `Field` importieren

Importieren Sie es zuerst:

=== "Python 3.10+"

    ```Python hl_lines="4"
    {!> ../../../docs_src/body_fields/tutorial001_an_py310.py!}
    ```

dependencies {
    implementation(enforcedPlatform("org.junit:junit-bom:5.7.1"))
}

// tag::disable_validation[]
tasks.withType<GenerateModuleMetadata> {
    // The value 'enforced-platform' is provided in the validation
    // error message you got
    suppressedValidationErrors.add("enforced-platform")
}

 * limitations under the License.
 */

// Common configuration for everything that belongs to the Gradle distribution
plugins {
    id("gradlebuild.java-library")
    id("gradlebuild.task-properties-validation")

                .add(pluginJar)
        } else {
            Logging.getLogger(javaClass).warn("Validation won't be performed for plugin '{}' because we couldn't locate its jar file", pluginId)
        }
    }
}

dependencies {
    implementation enforcedPlatform('org.junit:junit-bom:5.7.1')
}

// tag::disable_validation[]
tasks.withType(GenerateModuleMetadata).configureEach {
    // The value 'enforced-platform' is provided in the validation
    // error message you got
    suppressedValidationErrors.add('enforced-platform')
}