データを**ストリーミング**するとは、アイテムの全シーケンスが用意できるのを待たずに、アプリがデータアイテムの送信をクライアントに対して開始することを意味します。

つまり、最初のアイテムを送信し、クライアントはそれを受け取って処理を始めます。その間に、次のアイテムをまだ生成しているかもしれません。

```mermaid
sequenceDiagram
    participant App
    participant Client

    App->>App: Produce Item 1
    App->>Client: Send Item 1
    App->>App: Produce Item 2
    Client->>Client: Process Item 1
    App->>Client: Send Item 2
    App->>App: Produce Item 3

Here's a visual representation of how the **proxy** adds forwarded headers between the client and the **application server**:

```mermaid
sequenceDiagram
    participant Client
    participant Proxy as Proxy/Load Balancer
    participant Server as FastAPI Server

    Client->>Proxy: HTTPS Request<br/>Host: mysuperapp.com<br/>Path: /items

    Note over Proxy: Proxy adds forwarded headers

Voici une représentation visuelle de la façon dont le **proxy** ajoute des en‑têtes transférés entre le client et le **serveur d'application** :

```mermaid
sequenceDiagram
    participant Client
    participant Proxy as Proxy/Load Balancer
    participant Server as FastAPI Server

    Client->>Proxy: HTTPS Request<br/>Host: mysuperapp.com<br/>Path: /items

    Note over Proxy: Proxy adds forwarded headers

Aqui está uma representação visual de como o **proxy** adiciona headers encaminhados entre o cliente e o **servidor da aplicação**:

```mermaid
sequenceDiagram
    participant Client
    participant Proxy as Proxy/Load Balancer
    participant Server as FastAPI Server

    Client->>Proxy: HTTPS Request<br/>Host: mysuperapp.com<br/>Path: /items

    Note over Proxy: Proxy adds forwarded headers

     * Determines whether plugins should be processed during project building.
     * When true, the builder will process plugin information which may include
     * resolving plugin dependencies and executing plugin goals that participate in project building.
     *
     * @return true if plugins should be processed, false otherwise
     */
    boolean isProcessPlugins();

    /**

```Python
@lru_cache
def say_hi(name: str, salutation: str = "Ms."):
    return f"Hello {salutation} {name}"
```

你的程序可能会像这样执行：

```mermaid
sequenceDiagram

participant code as Code
participant function as say_hi()
participant execute as Execute function

    rect rgba(0, 255, 0, .1)
        code ->> function: say_hi(name="Camila")
        function ->> execute: 执行函数代码
        execute ->> code: 返回结果

```Python
@lru_cache
def say_hi(name: str, salutation: str = "Ms."):
    return f"Hello {salutation} {name}"
```

プログラムは次のように実行されます:

```mermaid
sequenceDiagram

participant code as Code
participant function as say_hi()
participant execute as Execute function

    rect rgba(0, 255, 0, .1)
        code ->> function: say_hi(name="Camila")
        function ->> execute: execute function code

///

### 프록시 전달 헤더가 동작하는 방식 { #how-proxy-forwarded-headers-work }

다음은 **프록시**가 클라이언트와 **애플리케이션 서버** 사이에서 전달 헤더를 추가하는 과정을 시각적으로 나타낸 것입니다:

```mermaid
sequenceDiagram
    participant Client
    participant Proxy as Proxy/Load Balancer
    participant Server as FastAPI Server

    Client->>Proxy: HTTPS Request<br/>Host: mysuperapp.com<br/>Path: /items

    Note over Proxy: Proxy adds forwarded headers

Ниже показано, как прокси добавляет пересылаемые заголовки между клиентом и сервером приложения:

```mermaid
sequenceDiagram
    participant Client as Клиент
    participant Proxy as Прокси/Балансировщик нагрузки
    participant Server as FastAPI-сервер

    Client->>Proxy: HTTPS-запрос<br/>Host: mysuperapp.com<br/>Path: /items

    Note over Proxy: Прокси-сервер добавляет пересылаемые заголовки

Ось візуальне подання того, як **представник** додає направлені заголовки між клієнтом і **сервером застосунку**:

```mermaid
sequenceDiagram
    participant Client
    participant Proxy as Proxy/Load Balancer
    participant Server as FastAPI Server

    Client->>Proxy: HTTPS Request<br/>Host: mysuperapp.com<br/>Path: /items

    Note over Proxy: Proxy adds forwarded headers