# Query Parameter Models { #query-parameter-models }

If you have a group of **query parameters** that are related, you can create a **Pydantic model** to declare them.

This would allow you to **re-use the model** in **multiple places** and also to declare validations and metadata for all the parameters at once. 😎

/// note

This is supported since FastAPI version `0.115.0`. 🤓

///

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

plugins {
    id("java-platform")
    id("gradlebuild.dependency-modules")

--------------------

Building your native images with [GraalVM] should work automatically.

See the okcurl module for an example build.

```shell
$ ./gradlew okcurl:nativeImage
$ ./okcurl/build/graal/okcurl https://httpbin.org/get
```

Java Modules
------------

OkHttp (5.2+) implements Java 9 Modules.

With this in place Java builds should fail if apps attempt to use internal packages.

```

# Other core modules
subprojects/core                                            # @gradle/bt-cortex to be eventually moved to other core modules
subprojects/core-api                                        # @gradle/bt-cortex to be eventually moved to other core modules

# Develocity integration

                    <version>1.0</version>
                    <packaging>pom</packaging>

                    <modules>
                        <module>child1</module>
                        <module>child2</module>
                    </modules>
                </project>
                """);

            // Create child1 with specific repository

                        handler.isIncludesDependencies(),
                        handler.isAddedToClasspath()
                                ? new JavaPathType[] {JavaPathType.CLASSES, JavaPathType.MODULES}
                                : new JavaPathType[] {});
            }
            return type;
        });
    }

# Formularmodelle { #form-models }

Sie können **Pydantic-Modelle** verwenden, um **Formularfelder** in FastAPI zu deklarieren.

/// info | Info

Um Formulare zu verwenden, installieren Sie zuerst <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

# Cookie Parameter Models { #cookie-parameter-models }

If you have a group of **cookies** that are related, you can create a **Pydantic model** to declare them. 🍪

This would allow you to **re-use the model** in **multiple places** and also to declare validations and metadata for all the parameters at once. 😎

/// note

This is supported since FastAPI version `0.115.0`. 🤓

///

/// tip

**FastAPI** 将从请求中接收到的 **headers** 中**提取**出**每个字段**的数据，并提供您定义的 Pydantic 模型。

## 查看文档

您可以在文档 UI 的 `/docs` 中查看所需的 headers：

<div class="screenshot">
<img src="/img/tutorial/header-param-models/image01.png">
</div>

## 禁止额外的 Headers

在某些特殊使用情况下（可能并不常见），您可能希望**限制**您想要接收的 headers。

您可以使用 Pydantic 的模型配置来禁止（ `forbid` ）任何额外（ `extra` ）字段：

# Модели параметров cookie { #cookie-parameter-models }

Если у вас есть группа **cookies**, которые связаны между собой, вы можете создать **Pydantic-модель** для их объявления. 🍪

Это позволит вам **переиспользовать модель** в **разных местах**, а также объявить проверки и метаданные сразу для всех параметров. 😎

/// note | Заметка

Этот функционал доступен с версии `0.115.0`. 🤓

///

/// tip | Совет