///

////

//// tab | Pydantic v1

{* ../../docs_src/settings/app03_an_py39/config_pv1.py hl[9:10] *}

/// tip | Совет

                                "content": {
                                    "application/json": {
                                        "schema": {
                                            "$ref": "#/components/schemas/HTTPValidationError"
                                        }
                                    }
                                },
                            },
                        },

## Détails techniques

La classe `BackgroundTasks` provient directement de <a href="https://www.starlette.dev/background/" class="external-link" target="_blank">`starlette.background`</a>.

        final String pref = ComponentUtil.getFessConfig().getQueryJsonDefaultPreference();
        if (PREFERENCE_QUERY.equals(pref)) {
            return Integer.toString(query.hashCode());
        }
        if (StringUtil.isNotBlank(pref)) {
            return pref;
        }
        return null;
    }

    /**

この行はローカルマシンでアプリが提供されているURLを示しています。

### チェック

ブラウザで<a href="http://127.0.0.1:8000" class="external-link" target="_blank">http://127.0.0.1:8000</a>を開きます。

次のようなJSONレスポンスが表示されます:

```JSON
{"message": "Hello World"}
```

### 対話的APIドキュメント

次に、<a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>にアクセスします。

                            "content": {
                                "application/json": {
                                    "schema": {
                                        "$ref": "#/components/schemas/HTTPValidationError"
                                    }
                                }
                            },
                        },
                    },

                            "content": {
                                "application/json": {
                                    "schema": {
                                        "$ref": "#/components/schemas/HTTPValidationError"
                                    }
                                }
                            },
                        },
                    },

 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p><b>{@code default} method warning:</b> This class forwards calls to <i>only some</i> {@code
 * default} methods. Specifically, it forwards calls only for methods that existed <a
 * href="https://docs.oracle.com/javase/7/docs/api/java/util/ListIterator.html">before {@code

 * override one or more methods to modify the behavior of the backing map as desired per the <a
 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p><b>{@code default} method warning:</b> This class forwards calls to <i>only some</i> {@code
 * default} methods. Specifically, it forwards calls only for methods that existed <a
 * href="https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ConcurrentMap.html">before

# FastAPI Cloud { #fastapi-cloud }

Você pode implantar sua aplicação FastAPI no <a href="https://fastapicloud.com" class="external-link" target="_blank">FastAPI Cloud</a> com um **único comando**; entre na lista de espera, caso ainda não tenha feito isso. 🚀

## Login { #login }

Certifique-se de que você já tem uma conta no **FastAPI Cloud** (nós convidamos você a partir da lista de espera 😉).

Depois, faça login:

<div class="termy">

```console