private const val PROXY_A_HOST = "proxya"
    private val proxyA =
      Proxy(
        Proxy.Type.HTTP,
        InetSocketAddress.createUnresolved(PROXY_A_HOST, PROXY_A_PORT),
      )

    private const val PROXY_B_PORT = 1002
    private const val PROXY_B_HOST = "proxyb"
    private val proxyB =
      Proxy(
        Proxy.Type.HTTP,

    * 이것이 동일한 TLS Termination Proxy가 인증서 갱신 과정까지 처리할 때 매우 유용한 이유 중 하나입니다.
    * 그렇지 않으면 TLS Termination Proxy를 잠시 중지하고, 갱신 프로그램을 시작해 인증서를 획득한 다음, TLS Termination Proxy에 인증서를 설정하고, 다시 TLS Termination Proxy를 재시작해야 할 수도 있습니다. 이는 TLS Termination Proxy가 꺼져 있는 동안 앱(들)을 사용할 수 없으므로 이상적이지 않습니다.

앱을 계속 제공하면서 이 갱신 과정을 처리할 수 있는 것은, 애플리케이션 서버(예: Uvicorn)에서 TLS 인증서를 직접 쓰는 대신 TLS Termination Proxy로 HTTPS를 처리하는 **별도의 시스템**을 두고 싶어지는 주요 이유 중 하나입니다.

# Hinter einem Proxy { #behind-a-proxy }

In vielen Situationen würden Sie einen **Proxy** wie Traefik oder Nginx vor Ihrer FastAPI-App verwenden.

Diese Proxys könnten HTTPS-Zertifikate und andere Dinge handhaben.

## Proxy-<abbr title="weitergeleitete Header">Forwarded-Header</abbr> { #proxy-forwarded-headers }

# Behind a Proxy { #behind-a-proxy }

In many situations, you would use a **proxy** like Traefik or Nginx in front of your FastAPI app.

These proxies could handle HTTPS certificates and other things.

## Proxy Forwarded Headers { #proxy-forwarded-headers }

```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

    Proxy->>Server: HTTP Request<br/>X-Forwarded-For: [client IP]<br/>X-Forwarded-Proto: https<br/>X-Forwarded-Host: mysuperapp.com<br/>Path: /items

    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

    Proxy->>Server: HTTP Request<br/>X-Forwarded-For: [client IP]<br/>X-Forwarded-Proto: https<br/>X-Forwarded-Host: mysuperapp.com<br/>Path: /items

```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

    Proxy->>Server: HTTP Request<br/>X-Forwarded-For: [client IP]<br/>X-Forwarded-Proto: https<br/>X-Forwarded-Host: mysuperapp.com<br/>Path: /items

    @Test
    void testValidateUniqueProxyId() throws Exception {
        Settings settings = new Settings();
        Proxy proxy = new Proxy();
        String id = "foo";
        proxy.setId(id);
        proxy.setHost("www.example.com");
        settings.addProxy(proxy);
        settings.addProxy(proxy);

        SimpleProblemCollector problems = new SimpleProblemCollector();
        validator.validate(settings, problems);

     * separator which should not be part of the groupId or artifactId.
     */
    private static Path createPathProxy(String value) {
        return (Path) Proxy.newProxyInstance(
                ExclusionArtifactFilter.class.getClassLoader(), new Class[] {Path.class}, (proxy1, method, args) -> {
                    if ("toString".equals(method.getName())) {
                        return value;
                    }

- 📫 E-Mail-basierte Passwortwiederherstellung.
- ✅ Tests mit [Pytest](https://pytest.org).
- 📞 [Traefik](https://traefik.io) als Reverse-Proxy / Load Balancer.
- 🚢 Deployment-Anleitungen unter Verwendung von Docker Compose, einschließlich der Einrichtung eines Frontend-Traefik-Proxys zur Handhabung automatischer HTTPS-Zertifikate.