TransitionPending = "pending"
)

// Action represents a delete action or other transition
// actions that will be implemented later.
type Action int

//go:generate stringer -type Action $GOFILE

const (
	// NoneAction means no action required after evaluating lifecycle rules
	NoneAction Action = iota
	// DeleteAction means the object needs to be removed after evaluating lifecycle rules
	DeleteAction

Ebenfalls können Sie es verwenden, um automatisch Code für Clients zu generieren, die mit Ihrer API kommunizieren. Zum Beispiel für Frontend-, Mobile- oder IoT-Anwendungen.

## Rückblick, Schritt für Schritt

### Schritt 1: Importieren von `FastAPI`

```Python hl_lines="1"
{!../../docs_src/first_steps/tutorial001.py!}
```

  /**
   * The HTTP <a href="https://wicg.github.io/ua-client-hints/#sec-ch-ua-mobile">{@code
   * Sec-CH-UA-Mobile}</a> header field name.
   *
   * @since 30.0
   */
  public static final String SEC_CH_UA_MOBILE = "Sec-CH-UA-Mobile";
  /**
   * The HTTP <a href="https://wicg.github.io/ua-client-hints/#sec-ch-ua-wow64">{@code
   * Sec-CH-UA-WoW64}</a> header field name.

# Segurança - Primeiros Passos

Vamos imaginar que você tem a sua API **backend** em algum domínio.

E você tem um **frontend** em outro domínio ou em um path diferente no mesmo domínio (ou em uma aplicação mobile).

E você quer uma maneira de o frontend autenticar o backend, usando um **username** e **senha**.

Nós podemos usar o **OAuth2** junto com o **FastAPI**.

rgin-right:0}.btn-group-sm>.btn+.dropdown-toggle-split,.btn-sm+.dropdown-toggle-split{padding-right:.375rem;padding-left:.375rem}.btn-group-lg>.btn+.dropdown-toggle-split,.btn-lg+.dropdown-toggle-split{padding-right:.75rem;padding-left:.75rem}.btn-group.show .dropdown-toggle{box-shadow:none}.btn-group.show .dropdown-toggle.btn-link{box-shadow:none}.btn-group-vertical{-ms-flex-direction:column;flex-direction:column;-ms-flex-align:start;align-items:flex-start;-ms-flex-pack:center;justify-content:c...

///

/// note | "Technische Details zu Starlette"

**FastAPI**s `UploadFile` erbt direkt von **Starlette**s `UploadFile`, fügt aber ein paar notwendige Teile hinzu, um es kompatibel mit **Pydantic** und anderen Teilen von FastAPI zu machen.

///

## Was sind „Formulardaten“

# Einfaches OAuth2 mit Password und Bearer

Lassen Sie uns nun auf dem vorherigen Kapitel aufbauen und die fehlenden Teile hinzufügen, um einen vollständigen Sicherheits-Flow zu erhalten.

## `username` und `password` entgegennehmen

Wir werden **FastAPIs** Sicherheits-Werkzeuge verwenden, um den `username` und das `password` entgegenzunehmen.

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

//go:generate msgp -file=$GOFILE -unexported

import (
	"context"
	"fmt"
	"strconv"
	"sync"
	"time"

	"github.com/minio/minio/internal/dsync"
)

	"net/http"
	"time"

	"github.com/dustin/go-humanize"
	"github.com/minio/madmin-go/v3"
	"github.com/minio/minio/internal/bucket/replication"
	"github.com/minio/minio/internal/hash"
)

//go:generate msgp -file $GOFILE -io=false -tests=false -unexported=false

// BackendType - represents different backend types.
type BackendType int

// Enum for different backend types.
const (
	Unknown = BackendType(madmin.Unknown)

	"github.com/minio/minio/internal/crypto"
	"github.com/minio/minio/internal/hash"
	"github.com/minio/minio/internal/kms"
	"github.com/prometheus/client_golang/prometheus"
)

//go:generate msgp -file $GOFILE

var (
	errTierMissingCredentials = AdminError{
		Code:       "XMinioAdminTierMissingCredentials",
		Message:    "Specified remote credentials are empty",
		StatusCode: http.StatusForbidden,
	}