</div>

## Create the App with a Single Model { #create-the-app-with-a-single-model }

We'll create the simplest first version of the app with a single **SQLModel** model first.

Later we'll improve it increasing security and versatility with **multiple models** below. 🤓

### Create Models { #create-models }

Import `SQLModel` and create a database model:

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[1:11] hl[7:11] *}

Et tous utiliseront la même connexion WebSocket.

## Utiliser `Depends` et autres { #using-depends-and-others }

Dans les endpoints WebSocket, vous pouvez importer depuis `fastapi` et utiliser :

* `Depends`
* `Security`
* `Cookie`
* `Header`
* `Path`
* `Query`

Ils fonctionnent de la même manière que pour les autres endpoints/*chemins d'accès* FastAPI :

Kullanıcının düz metin (plaintext) `password`'ünü asla saklamayın. Her zaman sonradan doğrulayabileceğiniz "güvenli bir hash" saklayın.

Eğer bilmiyorsanız, "password hash" nedir konusunu [güvenlik bölümlerinde](security/simple-oauth2.md#password-hashing) öğreneceksiniz.

///

## Birden Çok Model { #multiple-models }

          if (Thread.currentThread() != currentThread) {
            return
          }

          // https://timothybasanov.com/2016/05/26/java-pre-master-secret.html
          // https://security.stackexchange.com/questions/35639/decrypting-tls-in-wireshark-when-using-dhe-rsa-ciphersuites
          // https://stackoverflow.com/questions/36240279/how-do-i-extract-the-pre-master-secret-using-an-openssl-based-client

        assertTrue(stringRep.contains("DOMAIN"));
        assertTrue(stringRep.contains("WORKSTATION"));
    }

    @Test
    @DisplayName("Should handle extended security flags")
    void testExtendedSecurityFlags() {
        // Given
        int extendedFlags = NtlmFlags.NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY;

        // When

- Secure File Transfer Protocol (SFTP) – Defined by the Internet Engineering Task Force (IETF) as an
  extended version of SSH 2.0, allowing file transfer over SSH and for use with Transport Layer
  Security (TLS) and VPN applications.

- File Transfer Protocol over SSL/TLS (FTPS) – Encrypted FTP communication via TLS certificates.

- File Transfer Protocol (FTP) – Defined by RFC114 originally, and replaced by RFC765 and RFC959

## Explore Further

- [MinIO Client Complete Guide](https://docs.min.io/community/minio-object-store/reference/minio-mc.html)
- [MinIO STS Quickstart Guide](https://docs.min.io/community/minio-object-store/developers/security-token-service.html)
- [MinIO Admin Complete Guide](https://docs.min.io/community/minio-object-store/reference/minio-mc-admin.html)

    * Email。
    * UUID。
    * ...その他。

すべての検証は、確立され堅牢な **Pydantic** によって処理されます。

### セキュリティと認証 { #security-and-authentication }

セキュリティと認証が統合されています。データベースやデータモデルとの妥協はありません。

OpenAPI で定義されたすべてのセキュリティスキームをサポートします:

* HTTP Basic。
* **OAuth2**（**JWT トークン** も可）。チュートリアル [JWT を用いた OAuth2](tutorial/security/oauth2-jwt.md) を確認してください。
* API キー（以下の場所）:
    * ヘッダー。
    * クエリパラメータ。
    * クッキー、など。

Using Linux containers has several advantages including **security**, **replicability**, **simplicity**, and others.

/// tip

In a hurry and already know this stuff? Jump to the [`Dockerfile` below 👇](#build-a-docker-image-for-fastapi).

///

<details>

/// danger | Peligro

Nunca almacenes contraseñas de usuarios en texto plano. Siempre almacena un "hash seguro" que puedas verificar luego.

Si no lo sabes, aprenderás qué es un "hash de contraseña" en los [capítulos de seguridad](security/simple-oauth2.md#password-hashing).

///

## Múltiples modelos { #multiple-models }

Aquí tienes una idea general de cómo podrían ser los modelos con sus campos de contraseña y los lugares donde se utilizan: