"info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {
            "/dict": {
                "get": {
                    "summary": "Read Dict",
                    "operationId": "read_dict_dict_get",
                    "responses": {
                        "200": {
                            "description": "Successful Response",
                            "content": {

Logo, a seção com:

{% raw %}

```jinja
<a href="{{ url_for('read_item', id=id) }}">
```

{% endraw %}

...irá gerar um link para a mesma URL que será tratada pela *path operation function* `read_item(id=id)`.

Por exemplo, com um ID de `42`, isso renderizará:

```html

        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {
            "/valid1": {
                "get": {
                    "summary": "Valid1",
                    "operationId": "valid1_valid1_get",
                    "responses": {
                        "200": {
                            "description": "Successful Response",

Для некоторых типов приложений может потребоваться добавить зависимости ко всему приложению.

Подобно тому, как вы можете [добавлять зависимости через параметр `dependencies` в *декораторах операций пути*](dependencies-in-path-operation-decorators.md){.internal-link target=_blank}, вы можете добавлять зависимости сразу ко всему `FastAPI` приложению.

В этом случае они будут применяться ко всем *операциям пути* в приложении:

//// tab | Python 3.9+

                        }
                    },
                    "tags": ["items"],
                    "summary": "Read Items",
                    "operationId": "read_items_items__get",
                }
            },
            "/users/": {
                "get": {
                    "responses": {
                        "200": {

```

////

/// tip

We'll discuss the `@lru_cache` in a bit.

For now you can assume `get_settings()` is a normal function.

///

And then we can require it from the *path operation function* as a dependency and use it anywhere we need it.

//// tab | Python 3.9+

```Python hl_lines="17  19-21"
{!> ../../docs_src/settings/app02_an_py39/main.py!}
```

////

Para alguns tipos de aplicação específicos você pode querer adicionar dependências para toda a aplicação.

De forma semelhante a [adicionar dependências (`dependencies`) em *decoradores de operação de rota*](dependencies-in-path-operation-decorators.md){.internal-link target=_blank}, você pode adicioná-las à aplicação `FastAPI`.

Nesse caso, elas serão aplicadas a todas as *operações de rota* da aplicação:

//// tab | Python 3.9+

```Python hl_lines="16"

// If the most recent read or write operation on the buffer was
// not a successful [Buffer.ReadRune], UnreadRune returns an error.  (In this regard
// it is stricter than [Buffer.UnreadByte], which will unread the last byte
// from any read operation.)
func (b *Buffer) UnreadRune() error {
	if b.lastRead <= opInvalid {
		return errors.New("bytes.Buffer: UnreadRune: previous operation was not a successful ReadRune")
	}

        handler -->> client: HTTP-Error-Response
    end
    operation ->> client: Sendet Response an Client
    Note over client,operation: Response wurde gesendet, kann nicht mehr geändert werden
    opt Tasks
        operation -->> tasks: Sendet Hintergrundtasks
    end
    opt Löst andere Exception aus
        tasks -->> tasks: Handhabt Exception im Hintergrundtask-Code
    end
```

/// info

 */
@Experimental
public interface DependencyResolver extends Service {

    /**
     * Collects the transitive dependencies of some artifacts and builds a dependency graph for the given path scope.
     * Note that this operation is only concerned about determining the coordinates of the transitive dependencies and
     * does not actually resolve the artifact files.
     *
     * @param session the {@link Session}, must not be {@code null}