> For the complete documentation index, see [llms.txt](https://docs.caf.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.caf.io/caf-sdk/caf-sdk-pt-br/android/standalone-modules/caffaceliveness/advanced_features.md).

# Recursos avançados

### Proxy reverso do FaceLiveness

1. **URL do proxy**: Configure seu proxy para se comunicar com `wss://us.rp.secure.iproov.me/ws`.
2. Use o `.setLivenessBaseUrl` método para configurar a URL do FaceLiveness. O protocolo deve ser WSS.
3. Use `.setCertificates` para definir os certificados de hash SHA256 codificados em Base64 necessários.

### Exemplo

```kotlin
val faceLiveness = CafFaceLiveness.CafBuilder()
    .setStage(CAFStage.PROD)
    .setListener(
        // Criar listener
    )
    .setLivenessBaseUrl("wss://my.proxy.io/ws")
    .setCertificates(
        // Estes certificados são apenas espaços reservados de exemplo.
        listOf(
            "VMti7rJ8aFve2YjdKbNc45VycE9MxSwgzD4OIQXpFmU=",
            "BMu4vLR3pDyi8aZKrJPcVJxu7NgSx0rYqP3TSJhNeLc=",
            "YKr9vGU5bExJ3hVp7TeQWJfs5RcCdM1oFd8lTArS0tE="
        )
    )
    .build()
```

### Proxy reverso de autenticação

1. **URL do proxy**: Configure seu proxy para se comunicar com a URL CAFStage correspondente:
   * PROD: `https://api.public.caf.io/`
   * BETA: `https://api.public.beta.caf.io/`
   * DEV: `https://api.public.dev.caf.io/`
2. Use `.setAuthBaseUrl` para especificar a URL de autenticação.

### Exemplo

```kotlin
val sdk = CafFaceLiveness.CafBuilder()
    .setStage(CAFStage.PROD)
    .setListener(
        // Criar listener
    )
    .setAuthBaseUrl("https://my.proxy.io/")
    .build()
```


---

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