///

/// tip

To declare form bodies, you need to use `Form` explicitly, because without it the parameters would be interpreted as query parameters or body (JSON) parameters.

///

## About "Form Fields" { #about-form-fields }

The way HTML forms (`<form></form>`) sends the data to the server normally uses a "special" encoding for that data, it's different from JSON.

)

// Valid - tells us if the format is sane by validating
// format version and erasure coding information.
func (m *xlMetaV1Object) valid() bool {
	return isXLMetaFormatValid(m.Version, m.Format) &&
		isXLMetaErasureInfoValid(m.Erasure.DataBlocks, m.Erasure.ParityBlocks)
}

// Verifies if the backend format metadata is sane by validating
// the version string and format style.

// Code generated by "stringer -type VersionType,ErasureAlgo -output=xl-storage-format-v2_string.go xl-storage-format-v2.go"; DO NOT EDIT.

package cmd

import "strconv"

func _() {
	// An "invalid array index" compiler error signifies that the constant values have changed.
	// Re-run the stringer command to generate them again.
	var x [1]struct{}
	_ = x[invalidVersionType-0]
	_ = x[ObjectType-1]
	_ = x[DeleteType-2]
	_ = x[LegacyType-3]

# Request Forms and Files { #request-forms-and-files }

You can define files and form fields at the same time using `File` and `Form`.

/// info

To receive uploaded files and/or form data, first install <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then install it, for example:

		case "Version":
			z.Version, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Version")
				return
			}
		case "Format":
			z.Format, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Format")
				return
			}
		case "Stat":
			err = z.Stat.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "Stat")
				return
			}

Isso não é uma limitação do **FastAPI** , é parte do protocolo HTTP.

///

## Recapitulando

# Request Forms and Files

Puedes definir archivos y campos de formulario al mismo tiempo usando `File` y `Form`.

/// info | Información

Para recibir archivos subidos y/o form data, primero instala <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Asegúrate de crear un [entorno virtual](../virtual-environments.md){.internal-link target=_blank}, actívalo y luego instálalo, por ejemplo:

			}
		}
		if val, ok := j.DeleteMarker.MetaSys[ReservedMetadataPrefixLower+ReplicaTimestamp]; ok {
			tm, err := time.Parse(time.RFC3339Nano, string(val))
			if err == nil {
				j.DeleteMarker.MetaSys[ReservedMetadataPrefixLower+ReplicaTimestamp] = []byte(tm.UTC().Format(time.RFC3339Nano))
			}
		}
	}

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

var (
	// XL header specifies the format
	xlHeader = [4]byte{'X', 'L', '2', ' '}

	// Current version being written.
	xlVersionCurrent [4]byte
)

//msgp:clearomitted

//go:generate msgp -file=$GOFILE -unexported
//go:generate stringer -type VersionType,ErasureAlgo -output=xl-storage-format-v2_string.go $GOFILE

const (
	// Breaking changes.

`Form`では`Body`（および`Query`や`Path`、`Cookie`）と同じメタデータとバリデーションを宣言することができます。

/// info | 情報

`Form`は`Body`を直接継承するクラスです。

///

/// tip | 豆知識

フォームのボディを宣言するには、明示的に`Form`を使用する必要があります。なぜなら、これを使わないと、パラメータはクエリパラメータやボディ（JSON）パラメータとして解釈されるからです。

///

## 「フォームフィールド」について

HTMLフォーム（`<form></form>`）がサーバにデータを送信する方法は、通常、そのデータに「特別な」エンコーディングを使用していますが、これはJSONとは異なります。