# Query-параметры { #query-parameters }

Когда вы объявляете параметры функции, которые не являются параметрами пути, они автоматически интерпретируются как "query"-параметры.

{* ../../docs_src/query_params/tutorial001_py39.py hl[9] *}

Query-параметры представляют из себя набор пар ключ-значение, которые идут после знака `?` в URL-адресе, разделенные символами `&`.

Например, в этом URL-адресе:

```
http://127.0.0.1:8000/items/?skip=0&limit=10
```

    /** OAuth2 state parameter name. */
    protected static final String STATE = "state";

    /** OAuth2 error parameter name. */
    protected static final String ERROR = "error";

    /** OAuth2 error description parameter name. */
    protected static final String ERROR_DESCRIPTION = "error_description";

    /** OAuth2 error URI parameter name. */

   *       to construct the sample instances. In case of tie, the candidate constructors or
   *       factories are tried one after another until one can be used to construct sample
   *       instances.
   *   <li>For the constructor or static factory method used to construct instances, it's checked

# Parâmetros de consulta e validações de string { #query-parameters-and-string-validations }

O **FastAPI** permite declarar informações adicionais e validações para os seus parâmetros.

Vamos usar esta aplicação como exemplo:

{* ../../docs_src/query_params_str_validations/tutorial001_py310.py hl[7] *}

        /**
         * Gets the initialization parameter value for the given parameter name.
         *
         * This method maps SPNEGO configuration parameter names to their corresponding
         * values from system properties or default values. It handles various
         * authentication and security settings for SPNEGO.
         *
         * @param name The name of the initialization parameter

* MavenSession

  We may need to enable the context injection here, since this will be
  instantiated per-project. If we always inject the same context parameters,
  and are careful to inject nulls where things are missing, we should be

# 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.

            if (matcher.matches()) {
                return entry.getValue();
            }
        }
        return null;
    }

    /**
     * Sets the initialization parameter map for all clients.
     * @param params The map of parameters.
     */
    public void setInitParameterMap(final Map<String, Object> params) {
        if (params != null) {
            for (final CrawlerClient client : clientMap.values()) {

    }

    /**
     * Stores a list of crawling information parameters in batch.
     * Sets the creation time for any parameters that don't have it set,
     * then performs a batch insert operation with immediate refresh.
     *
     * @param crawlingInfoParamList the list of crawling information parameters to store
     * @throws FessSystemException if the parameter list is null
     */

    /** Logger instance for this class */
    private static final Logger logger = LogManager.getLogger(DataIndexHelper.class);

    /** Parameter key for controlling deletion of old documents */
    private static final String DELETE_OLD_DOCS = "delete_old_docs";

    /** Parameter key for controlling retention of expired documents */
    private static final String KEEP_EXPIRES_DOCS = "keep_expires_docs";

    /**