constraints.EAN.message                     = {item} ist kein gültiger {type}-Barcode.
constraints.Email.message                   = {item} ist keine gültige E-Mail-Adresse.
constraints.Length.message                  = Die Länge von {item} muss zwischen {min} und {max} liegen.

For example, inside of an `async` *path operation function* you can get the contents with:

```Python
contents = await myfile.read()
```

If you are inside of a normal `def` *path operation function*, you can access the `UploadFile.file` directly, for example:

```Python
contents = myfile.file.read()
```

/// note | "`async` Technical Details"

labels.teletexTerminalIdentifier=Teletex-Endgerätkennung
labels.user_x121Address=X.121-Adresse
labels.x121Address=X.121-Adresse
labels.user_businessCategory=Geschäftskategorie
labels.businessCategory=Geschäftskategorie
labels.user_registeredAddress=Registrierte Adresse
labels.registeredAddress=Registrierte Adresse
labels.user_displayName=Anzeigename
labels.displayName=Anzeigename

## Self-hosting JavaScript and CSS for docs

Self-hosting the JavaScript and CSS could be useful if, for example, you need your app to keep working even while offline, without open Internet access, or in a local network.

Here you'll see how to serve those files yourself, in the same FastAPI app, and configure the docs to use them.

### Project file structure

Let's say your project file structure looks like this:

Então, dessa forma você provavelmente terá um código mais limpo.

///

Se você costumava depender desse comportamento, agora você precisa criar os recursos para uma tarefa de background dentro dela mesma, e usar internamente apenas dados que não dependam de recursos de dependências com `yield`.

	"github.com/minio/minio/internal/logger"
	"github.com/minio/minio/internal/mcontext"
	xnet "github.com/minio/pkg/v3/net"
)

const (
	copyDirective    = "COPY"
	replaceDirective = "REPLACE"
	accessDirective  = "ACCESS"
)

// Parses location constraint from the incoming reader.
func parseLocationConstraint(r *http.Request) (location string, s3Error APIErrorCode) {
	// If the request has no body with content-length set to 0,

			//   HTTP status code 404 ("no such key")
			//   error.
			// * if you don’t have the s3:ListBucket
			//   permission, Amazon S3 will return an HTTP
			//   status code 403 ("access denied") error.`
			if globalPolicySys.IsAllowed(policy.BucketPolicyArgs{
				Action:          policy.ListBucketAction,
				BucketName:      bucket,
				ConditionValues: getConditionValues(r, "", auth.AnonymousCredentials),

O **FastAPI** criará o objeto do tipo `BackgroundTasks` para você e o passará como esse parâmetro.

## Criar uma função de tarefa

Crie uma função a ser executada como tarefa em segundo plano.

É apenas uma função padrão que pode receber parâmetros.

Pode ser uma função `async def` ou `def` normal, o **FastAPI** saberá como lidar com isso corretamente.

Nesse caso, a função de tarefa gravará em um arquivo (simulando o envio de um e-mail).

		return err
	}

	reason := googleAPIErr.Errors[0].Reason
	message := googleAPIErr.Errors[0].Message

	switch reason {
	case "required":
		// Anonymous users does not have storage.xyz access to project 123.
		fallthrough
	case "keyInvalid":
		fallthrough
	case "forbidden":
		err = PrefixAccessDenied{
			Bucket: bucket,
			Object: object,
		}
	case "invalid":

exposing a single subkey of a multi-value field if it would be more flexible to expose the entire field as arbitrary YAML. If the change truly is generally purpose, it is generally preferred to have broader APIs. For example, instead of providing direct access to each of the complex fields in [affinity](https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/), just providing a single `affinity` field that is passed through as-is to the Kubernetes resource. This provides maximum flexibility...