}

    return responseBuilder.build()
  }

  /** Returns a 'Cookie' HTTP request header with all cookies, like `a=b; c=d`. */
  private fun cookieHeader(cookies: List<Cookie>): String =
    buildString {
      cookies.forEachIndexed { index, cookie ->
        if (index > 0) append("; ")
        append(cookie.name).append('=').append(cookie.value)
      }
    }

                        "loc": ["cookie", "session_id"],
                        "msg": "field required",
                    }
                ]
            }
        )
    )


def test_cookie_param_model_extra(client: TestClient):
    with client as c:
        c.cookies.set("session_id", "123")
        c.cookies.set("extra", "track-me-here-too")
        response = c.get("/items/")

def test_cookie_repr_str():
    assert repr(Cookie("teststr")) == "Cookie(teststr)"


def test_cookie_repr_none():
    assert repr(Cookie(None)) == "Cookie(None)"


def test_cookie_repr_ellipsis():
    assert repr(Cookie(...)) == IsOneOf(
        "Cookie(PydanticUndefined)",
        # TODO: remove when deprecating Pydantic v1
        "Cookie(Ellipsis)",
    )


def test_cookie_repr_number():

   */
  fun loadForRequest(url: HttpUrl): List<Cookie>

  companion object {
    /** A cookie jar that never accepts any cookies. */
    @JvmField
    val NO_COOKIES: CookieJar = NoCookies()

    private class NoCookies : CookieJar {
      override fun saveFromResponse(
        url: HttpUrl,
        cookies: List<Cookie>,
      ) {
      }

      override fun loadForRequest(url: HttpUrl): List<Cookie> {

        final Cookie[] cookies = request.getCookies();
        if (cookies != null) {
            for (final Cookie cookie : cookies) {
                addRoleFromCookieMapping(roleSet, cookie);
            }
        }

    }

    protected void addRoleFromCookieMapping(final Set<String> roleNameList, final Cookie cookie) {

            assert data == "Session cookie or query token value is: some-token"
            data = websocket.receive_text()
            assert data == f"Message text was: {message}, for item ID: bar"
            message = "Message two"
            websocket.send_text(message)
            data = websocket.receive_text()
            assert data == "Session cookie or query token value is: some-token"

        def cookie_example(
            data: Union[str, None] = Cookie(
                default=None,
                example="cookie1",
            ),
        ):
            return data

    @app.get("/cookie_examples/")
    def cookie_examples(
        data: Union[str, None] = Cookie(
            default=None,
            examples=["cookie1", "cookie2"],
        ),
    ):
        return data

            assert data == "Session cookie or query token value is: some-token"
            data = websocket.receive_text()
            assert data == f"Message text was: {message}, for item ID: bar"
            message = "Message two"
            websocket.send_text(message)
            data = websocket.receive_text()
            assert data == "Session cookie or query token value is: some-token"

# 响应Cookies

## 使用 `Response` 参数

你可以在 *路径函数* 中定义一个类型为 `Response`的参数，这样你就可以在这个临时响应对象中设置cookie了。

```Python hl_lines="1  8-9"
{!../../docs_src/response_cookies/tutorial002.py!}
```

而且你还可以根据你的需要响应不同的对象，比如常用的 `dict`，数据库model等。

如果你定义了 `response_model`，程序会自动根据`response_model`来过滤和转换你响应的对象。

**FastAPI** 会使用这个 *临时* 响应对象去装在这些cookies信息 (同样还有headers和状态码等信息), 最终会将这些信息和通过`response_model`转化过的数据合并到最终的响应里。

from fastapi import Depends, FastAPI, Response
from fastapi.testclient import TestClient

app = FastAPI()


def set_cookie(*, response: Response):
    response.set_cookie("cookie-name", "cookie-value")
    return {}


def set_indirect_cookie(*, dep: str = Depends(set_cookie)):
    return dep


@app.get("/directCookie")
def get_direct_cookie(dep: str = Depends(set_cookie)):
    return {"dep": dep}