# path operationデコレータの依存関係

場合によっては*path operation関数*の中で依存関係の戻り値を本当に必要としないこともあります。

もしくは、依存関係が値を返さない場合もあります。

しかし、それでも実行・解決する必要があります。

このような場合、*path operation関数*のパラメータを`Depends`で宣言する代わりに、*path operation decorator*に`dependencies`の`list`を追加することができます。

##  *path operationデコレータ*への`dependencies`の追加

*path operationデコレータ*はオプショナルの引数`dependencies`を受け取ります。

それは`Depends()`の`list`であるべきです:

{* ../../docs_src/dependencies/tutorial006.py hl[17] *}

# Dependências em decoradores de operações de rota { #dependencies-in-path-operation-decorators }

Em alguns casos você não precisa necessariamente retornar o valor de uma dependência dentro de uma *função de operação de rota*.

Ou a dependência não retorna nenhum valor.

Mas você ainda precisa que ela seja executada/resolvida.

Sebastián Ramírez <******@****.***> 1731896744 +0100

Sebastián Ramírez <******@****.***> 1731896744 +0100

## Documentation Deprecate a *Path Operation* - OpenAPI { #documentation-deprecate-a-path-operation-openapi }

To deprecate a *path operation*, and show it in the docs UI, read the docs for [Tutorial - Path Operation Configurations - Deprecation](../tutorial/path-operation-configuration.md#deprecate-a-path-operation){.internal-link target=_blank}.

## Convert any Data to JSON-compatible { #convert-any-data-to-json-compatible }

## Documentar la Deprecación de una *Path Operation* - OpenAPI { #documentation-deprecate-a-path-operation-openapi }

	Type        AssociationOpType // Operation type
	Conditions  []Expression      // Filter conditions
	Set         []Assignment      // Assignment operations (for Update and Create)
	Values      []interface{}     // Values for Create operation
}

// AssociationAssigner is an interface for association operation providers
type AssociationAssigner interface {
	AssociationAssignments() []Association
}

```

...eso es porque el generador del cliente usa el **operation ID** interno de OpenAPI para cada *path operation*.

OpenAPI requiere que cada operation ID sea único a través de todas las *path operations*, por lo que FastAPI usa el **nombre de la función**, el **path**, y el **método/operación HTTP** para generar ese operation ID, porque de esa manera puede asegurarse de que los operation IDs sean únicos.

                            * `security_scopes.scopes` contendrá `["me"]` para la *path operation* `read_users_me`, porque está declarado en la dependencia `get_current_active_user`.

In this case, the task function will write to a file (simulating sending an email).

And as the write operation doesn't use `async` and `await`, we define the function with normal `def`:

{* ../../docs_src/background_tasks/tutorial001_py39.py hl[6:9] *}

## Add the background task { #add-the-background-task }

Inside of your *path operation function*, pass your task function to the *background tasks* object with the method `.add_task()`: