los custom proprietary headers se pueden añadir <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">usando el prefijo `X-`</a>.

Pero si tienes custom headers que deseas que un cliente en un navegador pueda ver, necesitas añadirlos a tus configuraciones de CORS ([CORS (Cross-Origin Resource Sharing)](cors.md){.internal-link target=_blank}) usando el parámetro `expose_headers` documentado en <a href="https://www.starlette.dev/middleware/#corsmiddleware"...

# Handbuch für fortgeschrittene Benutzer { #advanced-user-guide }

## Zusatzfunktionen { #additional-features }

Das Haupt-[Tutorial – Benutzerhandbuch](../tutorial/index.md){.internal-link target=_blank} sollte ausreichen, um Ihnen einen Überblick über alle Hauptfunktionen von **FastAPI** zu geben.

In den nächsten Abschnitten sehen Sie weitere Optionen, Konfigurationen und zusätzliche Funktionen.

/// tip | Tipp

# Guia de Usuário Avançado { #advanced-user-guide }

## Recursos Adicionais { #additional-features }

O [Tutorial - Guia de Usuário](../tutorial/index.md){.internal-link target=_blank} deve ser o suficiente para dar a você um tour por todos os principais recursos do **FastAPI**.

Nas próximas seções você verá outras opções, configurações, e recursos adicionais.

/// tip | Dica

As próximas seções **não são necessáriamente "avançadas"**

        "json_schema_extra": {
            "x-something-internal": {"level": 4},
        }
    }


@app.get("/foo", response_model=Item)
def foo():
    return {"name": "Foo item"}


client = TestClient(app)


item_schema = {
    "title": "Item",
    "required": ["name"],
    "type": "object",
    "x-something-internal": {
        "level": 4,
    },
    "properties": {

package cmd

import (
	"bytes"
	"encoding/json"
	"net/http"
	"strconv"
	"time"

	"github.com/minio/minio/internal/event"
	"github.com/minio/minio/internal/grid"
	xhttp "github.com/minio/minio/internal/http"
	"github.com/minio/minio/internal/logger"
	"github.com/minio/minio/internal/pubsub"
	"github.com/minio/mux"
	"github.com/minio/pkg/v3/policy"
)

import okhttp3.Request
import okhttp3.Response
import okhttp3.internal.addHeaderLenient
import okhttp3.internal.closeQuietly
import okhttp3.internal.concurrent.TaskRunner
import okhttp3.internal.http.HttpMethod
import okhttp3.internal.http2.ErrorCode
import okhttp3.internal.http2.Header
import okhttp3.internal.http2.Http2Connection
import okhttp3.internal.http2.Http2Stream
import okhttp3.internal.immutableListOf
import okhttp3.internal.platform.Platform

import assertk.assertThat
import assertk.assertions.isEqualTo
import java.net.InetAddress
import java.net.Socket
import mockwebserver3.internal.DEFAULT_REQUEST_LINE_HTTP_1
import mockwebserver3.internal.MockWebServerSocket
import mockwebserver3.internal.RecordedRequest
import mockwebserver3.internal.decodeRequestLine
import okhttp3.Headers
import okhttp3.Headers.Companion.headersOf
import okio.Buffer
import okio.ByteString

}

# Note: this is excluded on the full code base, since any submitted code must
# have passed Google's internal style guidelines.
@test "Check formatting for C++ files" {
    skip "clang-format doesn't match internal clang-format checker"
    echo "clang-format is recommended. Here are the suggested changes:"
    echo "============================="

import java.util.Collections
import okhttp3.Cookie
import okhttp3.CookieJar
import okhttp3.HttpUrl
import okhttp3.internal.cookieToString
import okhttp3.internal.delimiterOffset
import okhttp3.internal.platform.Platform
import okhttp3.internal.platform.Platform.Companion.WARN
import okhttp3.internal.trimSubstring

/** A cookie jar that delegates to a [java.net.CookieHandler]. */
class JavaNetCookieJar(

 * limitations under the License.
 */
package okhttp3.internal.platform.android

import javax.net.ssl.SSLSocket
import javax.net.ssl.SSLSocketFactory
import javax.net.ssl.X509TrustManager
import okhttp3.OkHttpClient
import okhttp3.internal.platform.Platform
import okhttp3.internal.readFieldOrNull

/**
 * Base Android reflection based SocketAdapter for the built in Android SSLSocket.