///

/// tip | Dica

Perceba que, nesse caso, estamos usando a função padrão do Python `open()` que interage com um arquivo.

Então, isso envolve I/O (input/output), que requer "esperar" que as coisas sejam escritas em disco.

Mas `open()` não usa `async` e `await`.

Assim, declaramos a função de manipulador de evento com `def` padrão em vez de `async def`.

///

	"fmt"
	"strings"
)

// Query analysis - The query is analyzed to determine if it involves
// aggregation.
//
// Aggregation functions - An expression that involves aggregation of
// rows in some manner. Requires all input rows to be processed,
// before a result is returned.
//
// Row function - An expression that depends on a value in the
// row. They have an output for each input row.
//

{* ../../docs_src/first_steps/tutorial001_py39.py hl[6] *}

Das `@app.get("/")` sagt **FastAPI**, dass die Funktion direkt darunter für die Bearbeitung von <abbr title="Request – Anfrage: Daten, die der Client zum Server sendet">Requests</abbr> zuständig ist, die an:

* den Pfad `/`
* unter der Verwendung der <abbr title="eine HTTP-GET-Methode"><code>get</code>-Operation</abbr> gehen

/// tip | Совет

Обратите внимание, что шифрование обмена происходит на **уровне TCP**, а не на уровне HTTP.

///

### HTTPS‑запрос { #https-request }

Теперь, когда у клиента и сервера (конкретно у браузера и прокси‑сервера TLS-терминации) есть **зашифрованное TCP‑соединение**, они могут начать **HTTP‑обмен**.

        this.response = response;
    }

    /**
     * Represents the status of an API response.
     */
    public enum Status {
        /** Successful response status. */
        OK(0),
        /** Bad request status indicating client error. */
        BAD_REQUEST(1),
        /** System error status indicating server error. */
        SYSTEM_ERROR(2),
        /** Unauthorized status indicating authentication failure. */

/// tip | Dica

Percebe que a encriptação da comunicação acontece no nível do TCP, não no nível do HTTP.

///

### Solicitação HTTPS { #https-request }

Agora que o cliente e servidor (especialmente o navegador e o Proxy de Terminação TLS) possuem uma conexão TCP encriptada, eles podem iniciar a comunicação HTTP.

 * short}, {@code int}, {@code float}, {@code double}, and {@code long} values.
 *
 * <p><b>Note:</b> This class intentionally violates the specification of its supertype {@code
 * DataInput}, which explicitly requires big-endian byte order.
 *
 * @author Chris Nokleberg
 * @author Keith Bottner
 * @since 8.0
 */
@J2ktIncompatible
@GwtIncompatible

Se você precisa de algo fácil de integrar com o FastAPI, mas que seja mais robusto, suportado por Redis, PostgreSQL ou outros, verifique o <a href="https://github.com/encode/broadcaster" class="external-link" target="_blank">encode/broadcaster</a>.

///

## Mais informações { #more-info }

        // Act - Write
        int writeLength = nodeStatusRequest.writeWireFormat(buffer, 0);

        // Assert write
        assertTrue(writeLength > 0);

        // Create new request to read
        NodeStatusRequest readRequest = new NodeStatusRequest(mockConfig, new Name(mockConfig));

        // Act - Read
        int readLength = readRequest.readWireFormat(buffer, 0);

        // Assert read

## Migration depuis un autre fournisseur de recherche

Veuillez consulter [MIGRATION.md](MIGRATION.md).

## Data Store