* `app`：在 `main.py` 中以 `app = FastAPI()` 建立的物件。

等同於：

```Python
from main import app
```

///

其他 ASGI 伺服器也有類似的指令，詳見各自的文件。

/// warning

Uvicorn 與其他伺服器支援 `--reload` 選項，對開發期間很有幫助。

`--reload` 會消耗更多資源，也較不穩定等。

它在開發階段很實用，但在生產環境中不應使用。

///

## 部署觀念 { #deployment-concepts }

上述範例會啟動伺服器程式（如 Uvicorn），以單一行程在指定連接埠（如 `80`）上監聽所有 IP（`0.0.0.0`）。

這是基本概念。但你很可能還需要處理一些額外事項，例如：

        exit 1
    ;;
esac

# Stops the service
if [ "$STOP_REQUIRED" = "true" ]; then
    echo -n "Stopping fess service..."
    if command -v systemctl >/dev/null; then
        systemctl --no-reload stop fess.service > /dev/null 2>&1 || true

    elif [ -x /etc/init.d/fess ]; then
        if command -v invoke-rc.d >/dev/null; then
            invoke-rc.d fess stop || true
        else

        final DynamicProperties systemProperties = ComponentUtil.getSystemProperties();

        if (StringUtil.isNotBlank(options.propertiesPath)) {
            systemProperties.reload(options.propertiesPath);
        } else {
            try {
                final File propFile = ComponentUtil.getSystemHelper().createTempFile("suggest_", ".properties");

/// warning | Achtung

Uvicorn und andere Server unterstützen eine `--reload`-Option, die während der Entwicklung nützlich ist.

Die `--reload`-Option verbraucht viel mehr Ressourcen, ist instabiler, usw.

Sie hilft während der **Entwicklung**, Sie sollten sie jedoch **nicht** in der **Produktion** verwenden.

///

import importlib

from fastapi.testclient import TestClient
from inline_snapshot import snapshot


def get_client() -> TestClient:
    from docs_src.conditional_openapi import tutorial001_py310

    importlib.reload(tutorial001_py310)

    client = TestClient(tutorial001_py310.app)
    return client


def test_disable_openapi(monkeypatch):
    monkeypatch.setenv("OPENAPI_URL", "")
    # Load the client after setting the env var

        // Arrange
        byte[] payload = new byte[] { 5, 6 };

        // Act
        spyBlob.set(payload);

        // Assert
        verify(spyBlob, times(1)).set(payload);
        assertSame(payload, spyBlob.get(), "Spy should behave like real object exposing same array");
        assertEquals(2, spyBlob.length(), "length() should reflect the set payload length");
    }

// The remaining payload and versions are returned.
func checkXL2V1(buf []byte) (payload []byte, major, minor uint16, e error) {
	if len(buf) <= 8 {
		return payload, 0, 0, fmt.Errorf("xlMeta: no data")
	}

	if !bytes.Equal(buf[:4], xlHeader[:]) {
		return payload, 0, 0, fmt.Errorf("xlMeta: unknown XLv2 header, expected %v, got %v", xlHeader[:4], buf[:4])
	}

The `@app.vibe()` decorator is intended to receive **any HTTP method** (`GET`, `POST`, `PUT`, `DELETE`, `PATCH`, etc.) and **any payload**.

The body should be annotated with `Any`, because the request and the response would be... well... **anything**. 🤷

The idea is that you would receive the payload and send it **directly** to an LLM provider, using a `prompt` to tell the LLM what to do, and return the response **as is**. No questions asked.

`fastapi dev`를 실행하면 개발 모드가 시작됩니다.

기본적으로 **auto-reload**가 활성화되어 코드에 변경이 생기면 서버를 자동으로 다시 로드합니다. 이는 리소스를 많이 사용하며, 비활성화했을 때보다 안정성이 떨어질 수 있습니다. 개발 환경에서만 사용해야 합니다. 또한 컴퓨터가 자신과만 통신하기 위한(`localhost`) IP인 `127.0.0.1`에서 연결을 대기합니다.

## `fastapi run` { #fastapi-run }

`fastapi run`을 실행하면 프로덕션 모드로 FastAPI가 시작됩니다.

        }
        // The region before offset and after the payload must remain untouched.
        for (int i = 0; i < offset; i++) {
            final int idx = i;
            assertEquals(0, dst[i], () -> "pre-offset byte " + idx + " modified");
        }
        for (int i = offset + 8; i < dst.length; i++) {
            final int idx = i;
            assertEquals(0, dst[i], () -> "post-payload byte " + idx + " modified");
        }
    }