,"CLASS_NAME_ICON_SEARCH","CLASS_NAME_ICON_CLOSE","CLASS_NAME_SEARCH_RESULTS","CLASS_NAME_LIST_GROUP","SELECTOR_SEARCH_INPUT","SELECTOR_SEARCH_BUTTON","SELECTOR_SEARCH_ICON","SELECTOR_SEARCH_RESULTS","SELECTOR_SEARCH_RESULTS_GROUP","arrowSign","minLength","maxResults","highlightName","highlightPath","highlightClass","notFoundText","SearchItems","SidebarSearch","items","after","class","_addNotFound","child","_parseItem","search","searchValue","val","toLowerCase","close","searchResults","filter","...

            alias=alias,
            title=title,
            description=description,
            gt=gt,
            ge=ge,
            lt=lt,
            le=le,
            min_length=min_length,
            max_length=max_length,
            discriminator=discriminator,
            multiple_of=multiple_of,
            allow_inf_nan=allow_inf_nan,
            max_digits=max_digits,

@app.get("/items/")
async def read_items(
    q: str | None = Query(
        default=None,
        title="Query string",
        description="Query string for the items to search in the database that have a good match",
        min_length=3,
    ),
):
    results = {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}
    if q:
        results.update({"q": q})

        serialization_alias=serialization_alias,
        title=title,
        description=description,
        gt=gt,
        ge=ge,
        lt=lt,
        le=le,
        min_length=min_length,
        max_length=max_length,
        pattern=pattern,
        regex=regex,
        discriminator=discriminator,
        strict=strict,
        multiple_of=multiple_of,

## Додавання додаткових валідацій { #add-more-validations }

Ви також можете додати параметр `min_length`:

{* ../../docs_src/query_params_str_validations/tutorial003_an_py310.py hl[10] *}

## Додавання регулярних виразів { #add-regular-expressions }

from fastapi import FastAPI, Query

app = FastAPI()


@app.get("/items/")
async def read_items(q: str | None = Query(default=None, min_length=3, max_length=50)):
    results = {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}
    if q:
        results.update({"q": q})

from typing import Annotated

from fastapi import FastAPI, Query

app = FastAPI()


@app.get("/items/")
async def read_items(q: Annotated[str, Query(min_length=3)] = "fixedquery"):
    results = {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}
    if q:
        results.update({"q": q})

            " default value together for 'foo'"
        ),
    ):

        @app.get("/")
        async def get3(foo: Annotated[int, Query(min_length=1)] = Depends(dep)):
            pass  # pragma: nocover

    client = TestClient(app)
    response = client.get("/multi-query", params={"foo": "5"})
    assert response.status_code == 200

因為 `Annotated` 可以有多個中繼資料註解，你甚至可以用同一個函式配合其他工具，例如 [Typer](https://typer.tiangolo.com/)。🚀

## 加入更多驗證 { #add-more-validations }

你也可以加入 `min_length` 參數：

{* ../../docs_src/query_params_str_validations/tutorial003_an_py310.py hl[10] *}

## 加入正規表示式 { #add-regular-expressions }

from fastapi import FastAPI, Query

app = FastAPI()


@app.get("/items/")
async def read_items(q: str | None = Query(min_length=3)):
    results = {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}
    if q:
        results.update({"q": q})