> For the complete documentation index, see [llms.txt](https://legacy-docs.usesmileid.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://legacy-docs.usesmileid.com/integration-options/mobile/products/enhanced-kyc.md).

# Enhanced KYC

Performing an Enhanced KYC requires you to

1. Determine the ID type
2. Gather inputs relevant for that ID type
3. Call the Smile ID API

{% tabs %}
{% tab title="Android" %}
Steps 1 and 2 are part of your own UI. The potential data required is available as a model: `com.smileidentity.models.IdInfo`

Step 3 can be accomplished by calling either the synchronous or asynchronous API:

{% hint style="info" %}
The API requests require the use of [coroutines](https://developer.android.com/kotlin/coroutines) to avoid blocking the UI thread
{% endhint %}

```kotlin
val idInfo: IdInfo = ...
val authRequest = AuthenticationRequest(
    jobType = JobType.EnhancedKyc,
    enrollment = false,
    userId = randomUserId(),
)
val authResponse = SmileID.api.authenticate(authRequest)
val enhancedKycRequest = EnhancedKycRequest(
    partnerParams = authResponse.partnerParams,
    signature = authResponse.signature,
    timestamp = authResponse.timestamp,
    country = idInfo.country,
    idType = idInfo.idType,
    idNumber = idInfo.idNumber ?: throw IllegalArgumentException("ID Number required"),
    firstName = idInfo.firstName,
    lastName = idInfo.lastName,
    dob = idInfo.dob,
    bankCode = idInfo.bankCode,
)
val response = SmileID.api.doEnhancedKyc(enhancedKycRequest)
```

{% endtab %}

{% tab title="iOS" %}
Steps 1 and 2 are part of your own UI. The potential data required is available as a model: `EnhancedKycRequest`

Step 3 can be accomplished by calling the API (currently, only the Asynchronous endpoint is available. This requires you to include a `callback_url` in the request):

**Usage**

```swift
let request = EnhancedKycRequest(...)
SmileID.api.authenticate(...)
SmileID.api.doEnhancedKycAsync(...)
SmileID.api.pollJobStatus(...)
```

{% endtab %}

{% tab title="Flutter" %}
Steps 1 and 2 are part of your own UI. The potential data required is available as a model: `FlutterEnhancedKycRequest`

Step 3 can be accomplished by calling the API (currently only the Asynchronous API is available. This requires you to include a `callback_url` in your request):

```dart
FlutterAuthenticationRequest authRequest = FlutterAuthenticationRequest(...);
FlutterEnhancedKycRequest eKycRequest = FlutterEnhancedKycRequest(...);
SmileID.authenticate(authRequest)
    .then((value) => SmileID.doEnhancedKycAsync(eKycRequest));
```

{% endtab %}

{% tab title="React Native" %}
{% hint style="info" %}
:warning: **Note:** Recommend wrapping this in a component that can be navigated to and out of view due to a known issue with views displaying dialogs particularly on failure and the dialog keeps showing,
{% endhint %}

Steps 1 and 2 are part of your own UI. The potential data required is available as a model: `FlutterEnhancedKycRequest`

Step 3 can be accomplished by calling the API (currently only the Asynchronous API is available. This requires you to include a `callback_url` in your request):

```typescript
const eKycRequest = EnhancedKycRequest(...);
SmileID.doEnhancedKyc(eKycRequest);
```

{% endtab %}
{% endtabs %}

### Asynchronous Enhanced KYC

You may also want to perform an Enhanced KYC asynchronously. For this, you will receive the results *only* to your callback URL. To do this, you *must:*

* Include a value for `callbackUrl` in your `EnhancedKycRequest`.
* Call `SmileID.api.doEnhancedKycAsync` instead


---

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