#include "textflag.h"

#define RARG0 R0
#define RARG1 R1
#define RARG2 R2
#define FARG R3

// func runtime·domsanread(addr unsafe.Pointer, sz uintptr)
// Called from msanread.
TEXT	runtime·domsanread(SB), NOSPLIT, $0-16
	MOVD	addr+0(FP), RARG0
	MOVD	sz+8(FP), RARG1
	// void __msan_read_go(void *addr, uintptr_t sz);
	MOVD	$__msan_read_go(SB), FARG
	JMP	msancall<>(SB)

// func runtime·msanwrite(addr unsafe.Pointer, sz uintptr)

  ).substr(0, 2);
  moment.locale(lang);
  $("input.form-control.date")
    .daterangepicker({
      autoUpdateInput: false,
      timePicker: false,
      singleDatePicker: true,
      locale: {
        format: "YYYY-MM-DD"
      }
    })
    .on("apply.daterangepicker", function(ev, picker) {
      $(this).val(picker.startDate.format("YYYY-MM-DD"));
    });
  $("input.form-control.daterange")
    .daterangepicker({

package p

import "math/big"

// From go.dev/issue/18419
func _(x *big.Float) {
	x.form /* ERROR "x.form undefined (cannot refer to unexported field form)" */ ()
}

// From go.dev/issue/31053
func _() {
	_ = big.Float{form /* ERROR "cannot refer to unexported field form in struct literal of type big.Float" */ : 0}

#include "textflag.h"

#define RARG0 R4
#define RARG1 R5
#define RARG2 R6
#define FARG  R7

// func runtime·domsanread(addr unsafe.Pointer, sz uintptr)
// Called from msanread.
TEXT	runtime·domsanread(SB), NOSPLIT, $0-16
	MOVV	addr+0(FP), RARG0
	MOVV	sz+8(FP), RARG1
	// void __msan_read_go(void *addr, uintptr_t sz);
	MOVV	$__msan_read_go(SB), FARG
	JMP	msancall<>(SB)

// func runtime·msanwrite(addr unsafe.Pointer, sz uintptr)

`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。

## What is "Form Data"

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.

**FastAPI** will make sure to read that data from the right place instead of JSON.

!!! note "Technical Details"
    Data from forms is normally encoded using the "media type" `application/x-www-form-urlencoded` when it doesn't include files.

from typing import Annotated

from fastapi import FastAPI, Form

app = FastAPI()


@app.post("/login/")
async def login(username: Annotated[str, Form()], password: Annotated[str, Form()]):

                                    <la:errors property="_global"/>
                                </div>
                                <div class="form-group row">
                                    <label for="name" class="col-sm-3 text-sm-right col-form-label"><la:message
                                            key="labels.group_name"/></label>
                                    <div class="col-sm-9">

!!! warning "Aviso"
    Você pode declarar vários parâmetros `File` e `Form` em uma *operação de caminho*, mas não é possível declarar campos `Body` para receber como JSON, pois a requisição terá o corpo codificado usando `multipart/form-data` ao invés de `application/json`.

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

## Recapitulando

      """
      |--AaB03x
      |Content-Disposition: form-data; name="field with spaces"; filename="filename with spaces.txt"
      |Content-Type: text/plain; charset=utf-8
      |
      |okay
      |--AaB03x
      |Content-Disposition: form-data; name="field with %22"
      |
      |"
      |--AaB03x
      |Content-Disposition: form-data; name="field with %22"
      |
      |%22
      |--AaB03x