},
                "/response_model-no_annotation-return_dict_with_extra_data": {
                    "get": {
                        "summary": "Response Model No Annotation Return Dict With Extra Data",
                        "operationId": "response_model_no_annotation_return_dict_with_extra_data_response_model_no_annotation_return_dict_with_extra_data_get",
                        "responses": {

///

## Interdire les cookies supplémentaires { #forbid-extra-cookies }

Dans certains cas d'utilisation particuliers (probablement peu courants), vous pourriez vouloir **restreindre** les cookies que vous souhaitez recevoir.

		case err == io.EOF:
			wg.Wait()
			return asyncErr

		// return any other error
		case err != nil:
			wg.Wait()
			extra := ""
			if n > 0 {
				extra = fmt.Sprintf(" after %d successful object(s)", n)
			}
			return fmt.Errorf("tar file error: %w%s", err, extra)

		// if the header is nil, just skip it (not sure how this happens)
		case header == nil:
			continue
		}

		name := header.Name

from fastapi import FastAPI, Form
from pydantic import BaseModel

app = FastAPI()


class FormData(BaseModel):
    username: str
    password: str
    model_config = {"extra": "forbid"}


@app.post("/login/")
async def login(data: FormData = Form()):

        with:
          enable-cache: true
          cache-dependency-glob: |
            pyproject.toml
            uv.lock
      - name: Install Dependencies
        run: uv sync --no-dev --group tests --extra all
      - name: Ensure that we have the lowest supported Pydantic version
        if: matrix.uv-resolution == 'lowest-direct'
        run: uv pip install "pydantic==2.9.0"
      - name: Install Starlette from source

        }
        if (elements.length > 1) {
          /*
           * When a test requests a multiset with duplicates, our plan of
           * "add an extra item 0 to A and an extra item 1 to B" really means
           * "add an extra item 0 to A and B," which isn't what we want.
           */
          if (!Objects.equals(elements[0], elements[1])) {
            multiset2.add(elements[1], 2);
          }

                    CompactHashSet<String> set = CompactHashSet.create(asList(elements));
                    for (int i = 0; i < 100; i++) {
                      set.add("extra" + i);
                    }
                    for (int i = 0; i < 100; i++) {
                      set.remove("extra" + i);
                    }
                    set.trimToSize();
                    return set;
                  }
                })

但是即使您**填写数据**并点击“执行”，由于文档界面使用 **JavaScript**，cookie 将不会被发送。而您会看到一条**错误**消息，就好像您没有输入任何值一样。

///

## 禁止额外的 Cookie { #forbid-extra-cookies }

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 cookie。

您的 API 现在可以控制自己的 <dfn title="只是个玩笑，别当真。和 cookie 同意无关，不过连 API 现在都能拒绝可怜的 cookie，挺好玩的。来，吃块小饼干吧。🍪">cookie 同意</dfn>。🤪🍪

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

{* ../../docs_src/cookie_param_models/tutorial002_an_py310.py hl[10] *}

from typing import Annotated, Literal

from fastapi import FastAPI, Query
from pydantic import BaseModel, Field

app = FastAPI()


class FilterParams(BaseModel):
    model_config = {"extra": "forbid"}

    limit: int = Field(100, gt=0, le=100)
    offset: int = Field(0, ge=0)
    order_by: Literal["created_at", "updated_at"] = "created_at"
    tags: list[str] = []


@app.get("/items/")

    <div class="md-copyright__highlight">
        The FastAPI trademark is owned by <a href="https://tiangolo.com" target="_blank">@tiangolo</a> and is registered in the US and across other regions
    </div>
    {% if not config.extra.generator == false %}
    Made with
    <a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener">
        Material for MkDocs
    </a>
    {% endif %}