> For the complete documentation index, see [llms.txt](https://doc.ozforensics.com/oz-knowledge/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.ozforensics.com/oz-knowledge/oz-knowledge/pt-br/guias/developer-guide/sdk/oz-mobile-sdk/android/connecting-sdk-to-api.md).

# Conectando o SDK à API

Para conectar o SDK ao Oz API, especifique a URL da API, [token de acesso](/oz-knowledge/oz-knowledge/pt-br/guias/developer-guide/api/oz-api/use-cases/authentication.md), e [SSL pins](/oz-knowledge/oz-knowledge/pt-br/guias/developer-guide/sdk/oz-mobile-sdk/android/android-sdk-methods-and-properties.md#sslpin) como mostrado abaixo.

{% tabs %}
{% tab title="Kotlin" %}

```kotlin
OzLivenessSDK.setApiConnection(OzConnection.fromServiceToken(host, token, sslPins))
```

{% endtab %}

{% tab title="Java" %}

```java
OzLivenessSDK.INSTANCE.setApiConnection(
        OzConnection.Companion.fromServiceToken(host, token, sslPins), 
        null
);
```

{% endtab %}
{% endtabs %}

{% hint style="warning" %}
Observe:

* No aplicativo host, recomenda-se definir o endereço da API na tela que precede a verificação de Liveness. Definir a URL da API inicia uma chamada de serviço para a API, o que pode causar carga excessiva no servidor quando isso for feito na inicialização ou no startup do aplicativo. Recomendamos chamar o `setApiConnection` método uma vez, por exemplo, na `Application` classe.
* A ordem de inicialização do SDK e da conexão com a API não importa, mas ambos os métodos devem ser concluídos com sucesso antes de invocar o `createStartIntent` método.
  {% endhint %}

Como alternativa, é possível usar o login e a senha fornecidos pelo gerente de conta da Oz Forensics:

{% tabs %}
{% tab title="Kotlin" %}

```kotlin
OzLivenessSDK.setApiConnection(
    OzConnection.fromCredentials(host, username, password, sslPins),
    statusListener(
        { token -> /* token */ },
        { ex -> /* error */ }
    )
)
```

{% endtab %}

{% tab title="Java" %}

```java
OzLivenessSDK.INSTANCE.setApiConnection(
        OzConnection.Companion.fromCredentials(host, username, password, sslPins),
        new StatusListener<String>() {
            @Override
            public void onStatusChanged(@Nullable String s) {}
            @Override
            public void onSuccess(String token) { /* token */ }
            @Override
            public void onError(@NonNull OzException e) { /* error */ }
        }
);
```

{% endtab %}
{% endtabs %}

Embora a opção preferida seja a autenticação via token de acesso – por motivos de segurança.

Por padrão, os logs são salvos junto com os dados das análises. Se for necessário manter os logs distintos dos dados de análise, configure a conexão separada para [telemetria](/oz-knowledge/oz-knowledge/pt-br/outros/faq.md#what-is-telemetry-and-why-should-i-use-it) como mostrado abaixo:

{% tabs %}
{% tab title="Kotlin" %}

```kotlin
OzLivenessSDK.setEventsConnection(
    OzConnection.fromCredentials(
        "https://echo.cdn.ozforensics.com/",
        "<your_telemetry_user_eg_tm@company.com>",
        "your_telemetry_password"
    )
)
```

{% endtab %}

{% tab title="Java" %}

```java
OzLivenessSDK.setEventsConnection(
        OzConnection.fromCredentials(
                "https://tm.ozforensics.com/",
                "<your_telemetry_user_eg_tm@company.com>",
                "your_telemetry_password"
        )
);
```

{% endtab %}
{% endtabs %}

Remoção da autorização:

{% tabs %}
{% tab title="Kotlin" %}

```kotlin
OzLivenessSDK.setApiConnection(null)
```

{% endtab %}

{% tab title="Java" %}

```java
OzLivenessSDK.INSTANCE.setApiConnection(null, null);
```

{% endtab %}
{% endtabs %}

### Outros métodos

Verifique a presença do token de acesso salvo da Oz API:

{% tabs %}
{% tab title="Kotlin" %}

```kotlin
val isLoggedIn = OzLivenessSDK.isLoggedIn
```

{% endtab %}

{% tab title="Java" %}

```java
boolean isLoggedIn = OzLivenessSDK.INSTANCE.isLoggedIn();
```

{% endtab %}
{% endtabs %}

Encerrar sessão:

{% tabs %}
{% tab title="Kotlin" %}

```kotlin
OzLivenessSDK.logout()
```

{% endtab %}

{% tab title="Java" %}

```java
OzLivenessSDK.INSTANCE.logout();
```

{% endtab %}
{% endtabs %}


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