var header http.Header
	if etag != "" {
		header.Set("ETag", etag)
	}
	Range := &HTTPRangeSpec{Start: startOffset, End: startOffset + length}

	reader, err := api.GetObjectNInfo(ctx, bucket, object, Range, header, opts)
	if err != nil {
		return err
	}
	defer reader.Close()

	_, err = xioutil.Copy(writer, reader)
	return err

* O frontend precisa buscar mais dados da API.
    * Mas precisa de autenticação para aquele endpoint específico.
    * Então, para autenticar com nossa API, ele envia um header `Authorization` com o valor `Bearer ` mais o token.
    * Se o token contém `foobar`, o conteúdo do header `Authorization` seria: `Bearer foobar`.

## O `OAuth2PasswordBearer` do **FastAPI** { #fastapis-oauth2passwordbearer }

* El frontend necesita obtener más datos de la API.
    * Pero necesita autenticación para ese endpoint específico.
    * Así que, para autenticarse con nuestra API, envía un `header` `Authorization` con un valor de `Bearer ` más el token.
    * Si el token contiene `foobar`, el contenido del `header` `Authorization` sería: `Bearer foobar`.

## `OAuth2PasswordBearer` de **FastAPI** { #fastapis-oauth2passwordbearer }

package cmd

import (
	"github.com/tinylib/msgp/msgp"
)

// MarshalMsg implements msgp.Marshaler
func (z BucketOptions) MarshalMsg(b []byte) (o []byte, err error) {
	o = msgp.Require(b, z.Msgsize())
	// map header, size 3
	// string "Deleted"
	o = append(o, 0x83, 0xa7, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x64)
	o = msgp.AppendBool(o, z.Deleted)
	// string "Cached"
	o = append(o, 0xa6, 0x43, 0x61, 0x63, 0x68, 0x65, 0x64)

        }
    }

    @Nested
    @DisplayName("Execution")
    class ExecutionTests {

        @Test
        @DisplayName("should log appropriate header message")
        void shouldLogAppropriateHeaderMessage() throws Exception {
            UpgradeContext context = createMockContext();

            // Create a temporary directory with a POM file for the test

		contentType := r.Header.Get("Content-Type")
		if contentType == "application/json" {
			w.Header().Set("Content-Type", "application/json")
			jsonEncoder := json.NewEncoder(w)
			jsonEncoder.Encode(metrics)
			return
		}

		// If not JSON, return plain text. We format it as a markdown table for
		// readability.
		w.Header().Set("Content-Type", "text/plain")
		var b strings.Builder

				err = msgp.WrapError(err)
				return
			}
		}
	}
	return
}

// EncodeMsg implements msgp.Encodable
func (z *BucketReplicationStat) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 14
	// write "ReplicatedSize"
	err = en.Append(0x8e, 0xae, 0x52, 0x65, 0x70, 0x6c, 0x69, 0x63, 0x61, 0x74, 0x65, 0x64, 0x53, 0x69, 0x7a, 0x65)
	if err != nil {
		return
	}

			if err != nil {
				err = msgp.WrapError(err)
				return
			}
		}
	}
	return
}

// EncodeMsg implements msgp.Encodable
func (z *TierConfigMgr) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 1
	// write "Tiers"
	err = en.Append(0x81, 0xa5, 0x54, 0x69, 0x65, 0x72, 0x73)
	if err != nil {
		return
	}
	err = en.WriteMapHeader(uint32(len(z.Tiers)))
	if err != nil {

			Type:        "url",
			Sensitive:   true,
		},
		config.HelpKV{
			Key:         AuthToken,
			Description: "authorization header for plugin hook endpoint" + defaultHelpPostfix(AuthToken),
			Optional:    true,
			Type:        "string",
			Sensitive:   true,
			Secret:      true,
		},
		config.HelpKV{
			Key:         EnableHTTP2,

	switch fi.VersionID {
	case "", nullVersionID:
	default:
		uv, err = uuid.Parse(fi.VersionID)
		if err != nil {
			return err
		}
	}

	for i, version := range x.versions {
		if version.header.VersionID != uv || version.header.Type != ObjectType {
			continue
		}
		// if uv has tiered content we add a
		// free-version to track it for asynchronous
		// deletion via scanner.
		ver, err := x.getIdx(i)
		if err != nil {