from fastapi import FastAPI, Query

app = FastAPI()


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

     * Sets the time taken to execute the search query in milliseconds.
     *
     * @param queryTime The query execution time in milliseconds
     */
    public void setQueryTime(final long queryTime) {
        this.queryTime = queryTime;
    }

    /**
     * Sets the actual search query executed against the search engine.
     *
     * @param searchQuery The search query string
     */

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

Primeiro importe `Header`:

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

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

Então declare os paramêtros de cabeçalho usando a mesma estrutura que em `Path`, `Query` e `Cookie`.

    /** Query parameter name for main search query. */
    public static final String OPTION_QUERY_Q = "q";

    /** Query parameter name for constraint query. */
    public static final String OPTION_QUERY_CQ = "cq";

    /** Query parameter name for optional query. */
    public static final String OPTION_QUERY_OQ = "oq";

    /** Query parameter name for negative query. */

            cb.query().setRegex_Wildcard(wrapQuery(pathMappingPager.regex));
        }
        if (StringUtil.isNotBlank(pathMappingPager.replacement)) {
            cb.query().setReplacement_Wildcard(wrapQuery(pathMappingPager.replacement));
        }
        // TODO Long, Integer, String supported only.

        // setup condition
        cb.query().addOrderBy_SortOrder_Asc();

	"http://dbflute.org/meta/lastadi10.dtd">
<components>
	<component name="queryFieldConfig"
		class="org.codelibs.fess.query.QueryFieldConfig">
	</component>

	<component name="queryProcessor"
		class="org.codelibs.fess.query.QueryProcessor">
	</component>

	<component name="booleanQueryCommand"
		class="org.codelibs.fess.query.BooleanQueryCommand">
		<postConstruct name="register"></postConstruct>
	</component>

from typing import Annotated

from fastapi import FastAPI, Query

app = FastAPI()


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

# Corpo - Múltiplos parâmetros { #body-multiple-parameters }

Agora que nós vimos como usar `Path` e `Query`, veremos usos mais avançados de declarações no corpo da requisição.

## Misture `Path`, `Query` e parâmetros de corpo { #mix-path-query-and-body-parameters }

Primeiro, é claro, você pode misturar `Path`, `Query` e declarações de parâmetro no corpo da requisição livremente e o **FastAPI** saberá o que fazer.

    /**
     * Performs a search operation using the specified query and parameters.
     *
     * @param query the search query string
     * @param params the search request parameters
     * @param userBean the optional user bean for access control
     * @return the search result containing documents and metadata
     */
    @Override

func parsePreSignV4(query url.Values, region string, stype serviceType) (psv preSignValues, aec APIErrorCode) {
	// verify whether the required query params exist.
	aec = doesV4PresignParamsExist(query)
	if aec != ErrNone {
		return psv, aec
	}

	// Verify if the query algorithm is supported or not.
	if query.Get(xhttp.AmzAlgorithm) != signV4Algorithm {