{* ../../docs_src/dependencies/tutorial007_py39.py hl[5:6] *}

/// tip | Consejo

Puedes usar funciones `async` o regulares.

**FastAPI** hará lo correcto con cada una, igual que con dependencias normales.

///

## Una dependencia con `yield` y `try` { #a-dependency-with-yield-and-try }

Si usas un bloque `try` en una dependencia con `yield`, recibirás cualquier excepción que se haya lanzado al usar la dependencia.

import org.codehaus.plexus.classworlds.ClassWorld;

/**
 * Maven upgrade CLI "new-gen".
 */
public class MavenUpCling extends ClingSupport {
    /**
     * "Normal" Java entry point. Note: Maven uses ClassWorld Launcher and this entry point is NOT used under normal
     * circumstances.
     */
    public static void main(String[] args) throws IOException {
        int exitCode = new MavenUpCling().run(args, null, null, null, false);

**FastAPI** bu verilerin JSON yerine doğru şekilde okunmasını sağlayacaktır.

/// note | Teknik Detaylar

Form verileri normalde `application/x-www-form-urlencoded` medya tipiyle kodlanır.

Ancak form içerisinde dosyalar yer aldığında `multipart/form-data` olarak kodlanır. Bir sonraki bölümde dosyaların işlenmesi hakkında bilgi edineceksiniz.

# Расширение OpenAPI { #extending-openapi }

Иногда может понадобиться изменить сгенерированную схему OpenAPI.

В этом разделе показано, как это сделать.

## Обычный процесс { #the-normal-process }

Обычный (по умолчанию) процесс выглядит так.

Приложение `FastAPI` (экземпляр) имеет метод `.openapi()`, который должен возвращать схему OpenAPI.

## HTTPX { #httpx }

Incluso si tu aplicación de **FastAPI** usa funciones `def` normales en lugar de `async def`, sigue siendo una aplicación `async` por debajo.

  static final int SIGNIFICAND_BITS = 52;

  static final int EXPONENT_BIAS = 1023;

  /** The implicit 1 bit that is omitted in significands of normal doubles. */
  static final long IMPLICIT_BIT = SIGNIFICAND_MASK + 1;

  static long getSignificand(double d) {
    checkArgument(isFinite(d), "not a normal value");
    int exponent = getExponent(d);
    long bits = doubleToRawLongBits(d);
    bits &= SIGNIFICAND_MASK;

import assertk.assertions.isEqualTo
import assertk.assertions.isNotNull
import assertk.assertions.isNull
import assertk.assertions.matches
import java.net.http.HttpClient
import java.net.http.HttpClient.Redirect.NORMAL
import java.net.http.HttpRequest
import java.net.http.HttpResponse.BodyHandlers
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop

    assert response.headers["WWW-Authenticate"] == "Bearer"


def test_security_http_bearer_incorrect_scheme_credentials():
    response = client.get("/users/me", headers={"Authorization": "Basic notreally"})
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "Bearer"


def test_openapi_schema():

    assert response.headers["WWW-Authenticate"] == "Bearer"


def test_security_http_bearer_incorrect_scheme_credentials():
    response = client.get("/users/me", headers={"Authorization": "Basic notreally"})
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "Bearer"


def test_openapi_schema():

import org.codehaus.plexus.classworlds.ClassWorld;

/**
 * Maven CLI "new-gen".
 */
public class MavenCling extends ClingSupport {
    /**
     * "Normal" Java entry point. Note: Maven uses ClassWorld Launcher and this entry point is NOT used under normal
     * circumstances.
     */
    public static void main(String[] args) throws IOException {
        int exitCode = new MavenCling().run(args, null, null, null, false);