Por defecto, **FastAPI** convertiría automáticamente ese valor de retorno a JSON usando el `jsonable_encoder` explicado en [JSON Compatible Encoder](../tutorial/encoder.md){.internal-link target=_blank}.

Luego, detrás de escena, pondría esos datos compatibles con JSON (por ejemplo, un `dict`) dentro de un `JSONResponse` que se usaría para enviar el response al cliente.

Sie können auch Header hinzufügen, wenn Sie eine `Response` direkt zurückgeben.

Erstellen Sie eine Response wie in [Eine Response direkt zurückgeben](response-directly.md){.internal-link target=_blank} beschrieben und übergeben Sie die Header als zusätzlichen Parameter:

{* ../../docs_src/response_headers/tutorial001_py39.py hl[10:12] *}

/// note | Technische Details

## Return a `Response` directly { #return-a-response-directly }

You can also add headers when you return a `Response` directly.

Create a response as described in [Return a Response Directly](response-directly.md){.internal-link target=_blank} and pass the headers as an additional parameter:

{* ../../docs_src/response_headers/tutorial001_py39.py hl[10:12] *}

/// note | Technical Details

// it may be deleted entirely in future releases.
package main

import (
	"bufio"
	"flag"
	"fmt"
	"log"
	"os"
	"strconv"
	"strings"

	"cmd/internal/objfile"
	"cmd/internal/telemetry/counter"
)

func printUsage(w *os.File) {
	fmt.Fprintf(w, "usage: addr2line binary\n")
	fmt.Fprintf(w, "reads addresses from standard input and writes two lines for each:\n")

import org.apache.maven.impl.InternalSession;
import org.apache.maven.impl.resolver.MavenSessionBuilderSupplier;
import org.apache.maven.internal.impl.DefaultLookup;
import org.apache.maven.internal.impl.DefaultSessionFactory;
import org.apache.maven.internal.impl.InternalMavenSession;
import org.apache.maven.model.Build;
import org.apache.maven.model.Dependency;
import org.apache.maven.model.Exclusion;

But this example is still valid and it shows how to interact with the internal components.

///

We can also use this same approach to access the request body in an exception handler.

	"errors"
	"fmt"
	"net/url"
	"os"
	"path/filepath"
	"strings"
	"time"

	"github.com/gomodule/redigo/redis"
	"github.com/minio/minio/internal/event"
	"github.com/minio/minio/internal/logger"
	"github.com/minio/minio/internal/once"
	"github.com/minio/minio/internal/store"
	xnet "github.com/minio/pkg/v3/net"
)

// Redis constants
const (
	RedisFormat     = "format"
	RedisAddress    = "address"

package cmd

import (
	"net/http"
	"net/http/httptest"
	"net/url"
	"strconv"
	"strings"
	"testing"

	"github.com/minio/minio/internal/crypto"
	"github.com/minio/minio/internal/grid"
	xhttp "github.com/minio/minio/internal/http"
)

// Tests request guess function for net/rpc requests.
func TestGuessIsRPC(t *testing.T) {
	if guessIsRPCReq(nil) {
		t.Fatal("Unexpected return for nil request")

	"errors"
	"fmt"
	"maps"
	"math/rand"
	"net/http"
	"path"
	"strings"
	"sync"
	"time"

	"github.com/minio/madmin-go/v3"
	"github.com/minio/minio/internal/crypto"
	"github.com/minio/minio/internal/hash"
	"github.com/minio/minio/internal/kms"
	"github.com/prometheus/client_golang/prometheus"
)

//go:generate msgp -file $GOFILE

var (
	errTierMissingCredentials = AdminError{

	"time"

	elasticsearch7 "github.com/elastic/go-elasticsearch/v7"
	"github.com/minio/highwayhash"
	"github.com/minio/minio/internal/event"
	xhttp "github.com/minio/minio/internal/http"
	"github.com/minio/minio/internal/logger"
	"github.com/minio/minio/internal/once"
	"github.com/minio/minio/internal/store"
	xnet "github.com/minio/pkg/v3/net"
	"github.com/pkg/errors"
)

// Elastic constants
const (