# Cookie Parameters { #cookie-parameters }

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

## Import `Cookie` { #import-cookie }

First import `Cookie`:

{* ../../docs_src/cookie_params/tutorial001_an_py310.py hl[3] *}

## Declare `Cookie` parameters { #declare-cookie-parameters }

Then declare the cookie parameters using the same structure as with `Path` and `Query`.

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

{* ../../docs_src/cookie_param_models/tutorial002_an_py39.py hl[10] *}

If a client tries to send some **extra cookies**, they will receive an **error** response.

## Pydantic-модель для cookies

Объявите параметры **cookie**, которые вам нужны, в **Pydantic-модели**, а затем объявите параметр как `Cookie`:

{* ../../docs_src/cookie_param_models/tutorial001_an_py310.py hl[9:12,16] *}

**FastAPI** **извлечёт** данные для **каждого поля** из **cookies**, полученных в запросе, и выдаст вам объявленную Pydantic-модель.

## Проверка сгенерированной документации

    assertThat(cookie.name).isEqualTo("a")
    assertThat(cookie.value).isEqualTo("android")
    assertThat(cookie.commentURL).isNull()
    assertThat(cookie.discard).isFalse()
    // Converting to a fixed date can cause rounding!
    assertThat(cookie.maxAge.toDouble()).isCloseTo(60.0, 5.0)
    assertThat(cookie.path).isEqualTo("/path")
    assertThat(cookie.secure).isTrue()
  }

  @Test

            final Cookie[] cookies = req.getCookies();
            if (cookies != null) {
                for (final Cookie cookie : cookies) {
                    if (cookieName.equals(cookie.getName())) {
                        try {
                            final String encoded = cookie.getValue();

        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);
        }
        cookie.setSecure(isSecureCookie());
        LaResponseUtil.getResponse().addCookie(cookie);
    }

     * @param request The HTTP request.
     * @param roleSet The set of roles.
     */
    protected void buildByCookieNameMapping(final HttpServletRequest request, final Set<String> roleSet) {
        final Cookie[] cookies = request.getCookies();
        if (cookies != null) {
            for (final Cookie cookie : cookies) {
                addRoleFromCookieMapping(roleSet, cookie);
            }
        }

        Cookie[] cookies = getMockResponse().getCookies();
        boolean found = false;
        for (Cookie cookie : cookies) {
            if ("FESS_SEARCH_PARAM".equals(cookie.getName())) {
                found = true;
                assertNotNull(cookie.getValue());
            }
        }
        assertTrue(found);
        getMockRequest().addCookie(cookies[0]);

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

## Import `Header` { #import-header }

First import `Header`:

{* ../../docs_src/header_params/tutorial001_an_py310.py hl[3] *}

## Declare `Header` parameters { #declare-header-parameters }

Then declare the header parameters using the same structure as with `Path`, `Query` and `Cookie`.

        roleQueryHelper.addCookieNameMapping("admin", "administrator");
        roleQueryHelper.addCookieNameMapping("user", "regular_user");

        Cookie adminCookie = new Cookie("admin", "true");
        Cookie userCookie = new Cookie("user", "true");
        Cookie otherCookie = new Cookie("other", "value");
        getMockRequest().addCookie(adminCookie);
        getMockRequest().addCookie(userCookie);