# Cookie Parameters

You can define Cookie parameters the same way you define `Query` and `Path` parameters.

## Import `Cookie`

First import `Cookie`:

//// tab | Python 3.10+

```Python hl_lines="3"
{!> ../../docs_src/cookie_params/tutorial001_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="3"
{!> ../../docs_src/cookie_params/tutorial001_an_py39.py!}
```

////

```

////

/// note | "기술 세부사항"

`Cookie`는 `Path` 및 `Query`의 "자매"클래스입니다. 이 역시 동일한 공통 `Param` 클래스를 상속합니다.

`Query`, `Path`, `Cookie` 그리고 다른 것들은 `fastapi`에서 임포트 할 때, 실제로는 특별한 클래스를 반환하는 함수임을 기억하세요.

///

/// info | "정보"

쿠키를 선언하기 위해서는 `Cookie`를 사용해야 합니다. 그렇지 않으면 해당 매개변수를 쿼리 매개변수로 해석하기 때문입니다.

///

## 요약

Por exemplo, se o cliente tentar enviar um cookie `santa_tracker` com o valor de `good-list-please`, o cliente receberá uma resposta de **erro** informando que o <abbr title="O papai noel desaprova a falta de biscoitos. 🎅 Ok, chega de piadas com os cookies.">cookie `santa_tracker` is not allowed</abbr>:

```json
{
    "detail": [

Your API now has the power to control its own <abbr title="This is a joke, just in case. It has nothing to do with cookie consents, but it's funny that even the API can now reject the poor cookies. Have a cookie. 🍪">cookie consent</abbr>. 🤪🍪

You can use Pydantic's model configuration to `forbid` any `extra` fields:

//// tab | Python 3.9+

```Python hl_lines="10"

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():

    assertThat(cookie.value).isEqualTo("android")
    assertThat(cookie.comment).isNull()
    assertThat(cookie.commentURL).isNull()
    assertThat(cookie.discard).isFalse()
    assertThat(cookie.maxAge).isGreaterThan(100000000000L)
    assertThat(cookie.path).isEqualTo("/path")
    assertThat(cookie.secure).isTrue()
    assertThat(cookie.version).isEqualTo(0)
  }

  @Test
  fun testRfc2109Response() {

        .build()
    assertThat(cookie.name).isEqualTo("a")
    assertThat(cookie.value).isEqualTo("b")
    assertThat(cookie.expiresAt).isEqualTo(MAX_DATE)
    assertThat(cookie.domain).isEqualTo("example.com")
    assertThat(cookie.path).isEqualTo("/")
    assertThat(cookie.secure).isFalse()
    assertThat(cookie.httpOnly).isFalse()
    assertThat(cookie.persistent).isFalse()
    assertThat(cookie.hostOnly).isFalse()

  override fun saveFromResponse(
    url: HttpUrl,
    cookies: List<Cookie>,
  ) {
    val cookieStrings = mutableListOf<String>()
    for (cookie in cookies) {
      cookieStrings.add(cookieToString(cookie, true))
    }
    val multimap = mapOf("Set-Cookie" to cookieStrings)
    try {
      cookieHandler.put(url.toUri(), multimap)
    } catch (e: IOException) {

        final Cookie cookie = new Cookie(cookieName, userCode);
        cookie.setMaxAge(age);
        cookie.setHttpOnly(httpOnly);
        if (StringUtil.isNotBlank(cookieDomain)) {
            cookie.setDomain(cookieDomain);
        }
        if (StringUtil.isNotBlank(cookiePath)) {
            cookie.setPath(cookiePath);
        }
        if (cookieSecure != null) {

import java.util.Deque

class RecordingCookieJar : CookieJar {
  private val requestCookies: Deque<List<Cookie>> = ArrayDeque()
  private val responseCookies: Deque<List<Cookie>> = ArrayDeque()

  fun enqueueRequestCookies(vararg cookies: Cookie) {
    requestCookies.add(cookies.toList())
  }

  fun takeResponseCookies(): List<Cookie> {
    return responseCookies.removeFirst()
  }

  fun assertResponseCookies(vararg cookies: String?) {