> For the complete documentation index, see [llms.txt](https://docs.payments.thalescloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payments.thalescloud.io/push-provisioning/implement-push-provisioning/implement-view-and-control/in-app-authentication-for-visa-ctf/approve-binding-or-cardholder-verification-request.md).

# Approve binding or cardholder verification request

### Approve binding

To approve a device binding request, call `DigitalCardService.approveBinding` with `digitalCardID` and `bindingReference`.

The following examples show how to approve a binding request.

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

```kotlin
val digitalCardID = "" // tokenReferenceID from payload
val bindingReference = "" // deviceIndex from payload
val reason: DigitalCardService.BindingApprovalReason? =
    DigitalCardService.BindingApprovalReason.USER_DECISION // optional; null defaults to ISSUER_DECISION

d1Task.digitalCardService().approveBinding(
    digitalCardID,
    bindingReference,
    reason,
    object : D1Task.Callback<Void> {
        override fun onSuccess(data: Void?) {
            // Handle success.
        }

        override fun onError(e: D1Exception) {
            // Handle error.
        }
    }
)
```

```java
String digitalCardID = ""; // tokenReferenceID from payload
String bindingReference = ""; // deviceIndex from payload
DigitalCardService.BindingApprovalReason reason =
        DigitalCardService.BindingApprovalReason.USER_DECISION; // optional; null defaults to ISSUER_DECISION

d1Task.digitalCardService().approveBinding(
        digitalCardID,
        bindingReference,
        reason,
        new D1Task.Callback<Void>() {
            @Override
            public void onSuccess(Void data) {
                // Handle success.
            }

            @Override
            public void onError(@NonNull D1Exception exception) {
                // Handle error.
            }
        });
```

{% endtab %}

{% tab title="iOS" %}

```swift
do {
    let digitalCardID = "" // tokenReferenceID from payload
    let bindingReference = "" // deviceIndex from payload

    try await d1Task.digitalCardService().approveBinding(digitalCardID, bindingReference: bindingReference, reason: nil)
} catch let error {
    // Handle the error.
}
```

{% endtab %}
{% endtabs %}

### Approve cardholder verification

To approve a cardholder verification request, call `DigitalCardService.approveCardholderVerification` with `digitalCardID`.

The following examples show how to approve a cardholder verification request.

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

```kotlin
val digitalCardID = "" // obtained from VISA CTF
val reason: DigitalCardService.VerificationReason? = null // optional; null defaults to ISSUER_DECISION

d1Task.digitalCardService().approveCardholderVerification(
    digitalCardID,
    reason,
    object : D1Task.Callback<Void> {
        override fun onSuccess(data: Void?) {
            // Handle success.
        }

        override fun onError(e: D1Exception) {
            // Handle error.
        }
    }
)
```

```java
String digitalCardID = ""; // obtained from VISA CTF
DigitalCardService.VerificationReason reason = null; // optional; null defaults to ISSUER_DECISION

d1Task.digitalCardService().approveCardholderVerification(
        digitalCardID,
        reason,
        new D1Task.Callback<Void>() {
            @Override
            public void onSuccess(Void data) {
                // Handle success.
            }

            @Override
            public void onError(@NonNull D1Exception exception) {
                // Handle error.
            }
        });
```

{% endtab %}

{% tab title="iOS" %}

```swift
do {
    let digitalCardID = "" // obtained from VISA CTF
    try await d1Task.digitalCardService().approveCardholderVerification(digitalCardID, reason: nil)
} catch let error {
    // Handle the error.
}
```

{% endtab %}
{% endtabs %}


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