# Overview

By Client is an integration method of Unico IDCloud that offers total flexibility for using identity validation solutions. It allows you to:

* Integrate the platform's capabilities directly into your back-end.
* Control the user experience with a proprietary front-end (see the [Capture Standard](https://devcenter.unico.io/idcloud-v2/by-client-integration/adittional-resources/capture-standard-without-sdk)).
* Or use our SDKs for web and mobile.

Using "by Client", you can freely combine the platform's capabilities according to the needs of your use case.

{% hint style="info" %}
To use the desired capabilities, it is necessary to configure your API Keys with the corresponding permissions.
{% endhint %}

Additionally, "by Client" can be used for reprocessing face databases. In this case, contact your account manager to receive guidance on the necessary procedures.

<figure><img src="https://content.gitbook.com/content/yg2ndDqWoiOMlw88KQMw/blobs/sjuXT4gpOhEvHIQAjpba/image.png" alt=""><figcaption></figcaption></figure>

{% stepper %}
{% step %}

### Autenticate <a href="#se-autentique" id="se-autentique"></a>

The first step is authentication. You must have a service account and perform OAuth2 authentication to obtain a valid access token.
{% endstep %}

{% step %}

### Open the Unico SDK <a href="#abra-o-sdk-da-unico" id="abra-o-sdk-da-unico"></a>

Using the Unico SDK, render the capture component so the end-user can capture the Selfie.

{% hint style="info" %}
This step is mandatory if you use Unico's Liveness Detection; otherwise, you can skip this step and request the service directly
{% endhint %}
{% endstep %}

{% step %}

### Create a process <a href="#crie-um-processo" id="crie-um-processo"></a>

Consume the POST endpoint to create a process, sending:

* the user's CPF.
* the encrypted object that is generated when the user captures the selfie via the SDK (*contains the user's selfie and the information for us to perform Liveness Detection*) or the base64 of the user's selfie (*if not using Liveness Detection*).
  {% endstep %}

{% step %}

### Check the process result (*if applicable*) <a href="#consulte-o-resultado-do-processo" id="consulte-o-resultado-do-processo"></a>

The validation is synchronous for almost all capabilities, except for the Risk Score (if there is a derivation to the Risk Score, it will be necessary to use the GET endpoint to obtain the final response).
{% endstep %}
{% endstepper %}

{% hint style="info" %}
If you use the Risk Score, you can use the Webhook to know when your process result is complete.
{% endhint %}


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