**作用域**只是不带空格的字符串。

常用于声明指定安全权限，例如：

* 常见用例为，`users:read` 或 `users:write`
* 脸书和 Instagram 使用 `instagram_basic`
* 谷歌使用 `https://www.googleapis.com/auth/drive`

/// info | 说明

OAuth2 中，**作用域**只是声明指定权限的字符串。

是否使用冒号 `:` 等符号，或是不是 URL 并不重要。

这些细节只是特定的实现方式。

对 OAuth2 来说，都只是字符串而已。

///

## 获取 `username` 和 `password` 的代码

接下来，使用 **FastAPI** 工具获取用户名与密码。

	"github.com/minio/minio/internal/color"
	"github.com/minio/minio/internal/logger"
)

// generates format string depending on the string length and padding.
func getFormatStr(strLen int, padding int) string {
	formatStr := fmt.Sprintf("%ds", strLen+padding)
	return "%" + formatStr
}

// Prints the formatted startup message.
func printStartupMessage(apiEndpoints []string, err error) {

	CipherSuites     []uint16
	CurvePreferences []tls.CurveID

	// HTTP2
	EnableHTTP2 bool

	// TCP Options
	TCPOptions TCPOptions
}

func (s ConnSettings) getDefaultTransport(maxIdleConnsPerHost int) *http.Transport {
	if maxIdleConnsPerHost <= 0 {
		maxIdleConnsPerHost = 1024
	}

	dialContext := s.DialContext
	if dialContext == nil {

func (c *DeadlineConn) Read(b []byte) (n int, err error) {
	if c.abortReads.Load() {
		return 0, context.DeadlineExceeded
	}
	c.setReadDeadline()
	n, err = c.Conn.Read(b)
	return n, err
}

// Write - writes data to the connection.
func (c *DeadlineConn) Write(b []byte) (n int, err error) {
	if c.abortWrites.Load() {
		return 0, context.DeadlineExceeded
	}

	// The maximum number of entries to return
	count int
	// Follow directory symlink
	followDirSymlink bool
}

// Return all the entries at the directory dirPath.
func readDir(dirPath string) (entries []string, err error) {
	return readDirWithOpts(dirPath, readDirOpts{count: -1})
}

// Return up to count entries at the directory dirPath.
func readDirN(dirPath string, count int) (entries []string, err error) {

				PutByteBuffer(payload)
				if err != nil {
					r := RemoteErr(err.Error())
					return &r
				}
			}

			var inT chan Req
			if h.InCapacity > 0 {
				// Don't add extra buffering
				inT = make(chan Req)
				go func() {
					defer xioutil.SafeClose(inT)
					for {
						select {
						case <-ctx.Done():
							return
						case v, ok := <-in:
							if !ok {
								return

///

### Use suas tags { #use-your-tags }

Use o parâmetro `tags` com suas *operações de rota* (e `APIRouter`s) para atribuí-los a diferentes tags:

{* ../../docs_src/metadata/tutorial004_py39.py hl[21,26] *}

/// info | Informação

Leia mais sobre tags em [Configuração de operação de rota](path-operation-configuration.md#tags){.internal-link target=_blank}.

///

### Cheque os documentos { #check-the-docs }

    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/heroes/": {
                    "post": {
                        "summary": "Create Hero",

				beforeState[index] = madmin.DriveStateMissing
				afterState[index] = madmin.DriveStateMissing

				return serr
			}
			return nil
		}, index)
	}

	errs := g.Wait()

	// Initialize heal result info
	res = madmin.HealResultItem{
		Type:      madmin.HealItemBucket,
		Bucket:    bucket,
		DiskCount: len(localDrives),
		SetCount:  -1, // explicitly set an invalid value -1, for bucket heal scenario
	}

	if err != nil {
		t.Fatalf("expected: <nil>, got: %s", err)
	}
	if len(volInfos) != 2 {
		t.Fatalf("expected: 2, got: %d", len(volInfos))
	}
	volFound := false
	for _, info := range volInfos {
		if info.Name == "success-vol" {
			volFound = true
			break
		}
	}
	if !volFound {
		t.Errorf("expected: success-vol to be created")
	}

	// removing the path and simulating disk failure