"securitySchemes": {
                "OAuth2PasswordBearer": {
                    "type": "oauth2",
                    "flows": {
                        "password": {
                            "scopes": {
                                "me": "Read information about the current user.",
                                "items": "Read items.",
                            },
                            "tokenUrl": "token",

    * JSON.
    * Các tham số trong đường dẫn.
    * Các tham số trong query string.
    * Cookies.
    * Headers.
    * Forms.
    * Files.
* <abbr title="cũng được biết tới như: serialization, parsing, marshalling">Chuyển đổi</abbr> dữ liệu đầu ra: chuyển đổi từ kiểu dữ liệu Python sang dữ liệu network (như JSON):

    * 自动补全
    * 类型检查
* 数据校验：
    * 在校验失败时自动生成清晰的错误信息
    * 对多层嵌套的 JSON 对象依然执行校验
* <abbr title="也被称为：序列化或解析">转换</abbr> 来自网络请求的输入数据为 Python 数据类型。包括以下数据：
    * JSON
    * 路径参数
    * 查询参数
    * Cookies
    * 请求头
    * 表单
    * 文件
* <abbr title="也被称为：序列化或解析">转换</abbr> 输出的数据：转换 Python 数据类型为供网络传输的 JSON 数据：
    * 转换 Python 基础类型 （`str`、 `int`、 `float`、 `bool`、 `list` 等）
    * `datetime` 对象
    * `UUID` 对象

But remember that when you import `Query`, `Path`, `File` and others from `fastapi`, those are actually functions that return special classes.

///

/// tip

To declare File bodies, you need to use `File`, because otherwise the parameters would be interpreted as query parameters or body (JSON) parameters.

///

The files will be uploaded as "form data".

pkg net/http, type Cookie struct, Quoted bool #46443
pkg net/http, type Request struct, Pattern string #66405
pkg net/http/httptest, func NewRequestWithContext(context.Context, string, string, io.Reader) *http.Request #59473
pkg os, func CopyFS(string, fs.FS) error #62484
pkg path/filepath, func Localize(string) (string, error) #57151
pkg reflect, func SliceAt(Type, unsafe.Pointer, int) Value #61308
pkg reflect, method (Value) Seq() iter.Seq[Value] #66056

# Primeiros Passos

O arquivo FastAPI mais simples pode se parecer com:

```Python
{!../../docs_src/first_steps/tutorial001.py!}
```

Copie o conteúdo para um arquivo `main.py`.

Execute o servidor:

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)

}

func TestValue_bytesToFloat(t *testing.T) {
	type fields struct {
		value interface{}
	}
	tests := []struct {
		name   string
		fields fields
		want   float64
		wantOK bool
	}{
		// Copied from TestValue_bytesToInt.
		{
			name: "zero",
			fields: fields{
				value: []byte("0"),
			},
			want:   0,
			wantOK: true,
		},
		{
			name: "minuszero",
			fields: fields{

    * JSON.
    * Parametrów ścieżki.
    * Parametrów zapytania.
    * Dane cookies.
    * Dane nagłówków (headers).
    * Formularze.
    * Pliki.
* <abbr title="znane również jako: serializacja, przetwarzanie, marshalling">Konwersja</abbr> danych wyjściowych: wychodzących z Pythona do sieci (jako JSON):

   * list of size {@code m x n x p}, its actual memory consumption is much smaller. When the
   * cartesian product is constructed, the input lists are merely copied. Only as the resulting list
   * is iterated are the individual lists created, and these are not retained after iteration.
   *
   * @param lists the lists to choose elements from, in the order that the elements chosen from

            "securitySchemes": {
                "OAuth2PasswordBearer": {
                    "type": "oauth2",
                    "flows": {
                        "password": {
                            "scopes": {
                                "me": "Read information about the current user.",
                                "items": "Read items.",
                            },
                            "tokenUrl": "token",