from typing import Union

from fastapi import Cookie, Depends, FastAPI

app = FastAPI()


def query_extractor(q: Union[str, None] = None):
    return q


def query_or_cookie_extractor(
    q: str = Depends(query_extractor),
    last_query: Union[str, None] = Cookie(default=None),
):
    if not q:
        return last_query
    return q


@app.get("/items/")

from typing import Annotated

from fastapi import Cookie, Depends, FastAPI

app = FastAPI()


def query_extractor(q: str | None = None):
    return q


def query_or_cookie_extractor(
    q: Annotated[str, Depends(query_extractor)],
    last_query: Annotated[str | None, Cookie()] = None,
):
    if not q:
        return last_query
    return q


@app.get("/items/")
async def read_query(

	}
}

// Issue #34799 add a Header method to get multiple values []string, with canonicalized key
func TestMIMEHeaderMultipleValues(t *testing.T) {
	testHeader := MIMEHeader{
		"Set-Cookie": {"cookie 1", "cookie 2"},
	}
	values := testHeader.Values("set-cookie")
	n := len(values)
	if n != 2 {
		t.Errorf("count: %d; want 2", n)
	}

from typing import Annotated

from fastapi import Cookie, FastAPI

app = FastAPI()


@app.get("/items/")
async def read_items(ads_id: Annotated[str | None, Cookie()] = None):

from typing import Annotated, Union

from fastapi import Cookie, FastAPI

app = FastAPI()


@app.get("/items/")
async def read_items(ads_id: Annotated[Union[str, None], Cookie()] = None):

from typing import Union

from fastapi import Cookie, FastAPI
from typing_extensions import Annotated

app = FastAPI()


@app.get("/items/")
async def read_items(ads_id: Annotated[Union[str, None], Cookie()] = None):

# 헤더 매개변수

헤더 매개변수를 `Query`, `Path` 그리고 `Cookie` 매개변수들과 같은 방식으로 정의할 수 있습니다.

## `Header` 임포트

먼저 `Header`를 임포트합니다:

```Python hl_lines="3"
{!../../../docs_src/header_params/tutorial001.py!}
```

## `Header` 매개변수 선언

`Path`, `Query` 그리고 `Cookie`를 사용한 동일한 구조를 이용하여 헤더 매개변수를 선언합니다.

첫 번째 값은 기본값이며, 추가 검증이나 어노테이션 매개변수 모두 전달할 수 있습니다:

```Python hl_lines="9"
{!../../../docs_src/header_params/tutorial001.py!}
```

		"content-language":            27,
		"content-length":              28,
		"content-location":            29,
		"content-range":               30,
		"content-type":                31,
		"cookie":                      32,
		"date":                        33,
		"etag":                        34,
		"expect":                      35,
		"expires":                     36,
		"from":                        37,

from typing import Union

from fastapi import Cookie, Depends, FastAPI
from typing_extensions import Annotated

app = FastAPI()


def query_extractor(q: Union[str, None] = None):
    return q


def query_or_cookie_extractor(
    q: Annotated[str, Depends(query_extractor)],
    last_query: Annotated[Union[str, None], Cookie()] = None,
):
    if not q:
        return last_query
    return q


@app.get("/items/")

							proto.Unmarshal(ss.GetSessionState().TypedConfig.Value, sc)
						}
					}
				}
			}
		}
		if sc.Cookie == nil {
			t.Fatal("Failed to find session cookie")
		}
		if filterIndex == (len(hcm.HttpFilters) - 1) {
			t.Fatal("session-cookie-filter cannot be the last filter!")
		}
		if sc.Cookie.Name != "test-cookie" {