# IOpcServiceRequest Members

> Reference: Defines an interface which provides the header of the request of a service.

<dl class="api-definition">
<dt>Type</dt>
<dd><a href="./">IOpcServiceRequest</a></dd>
<dt>Namespace</dt>
<dd><a href="../namespaces/opc.uafx.services">Opc.UaFx.Services</a></dd>
<dt>Assembly</dt>
<dd>Opc.UaFx.Advanced.dll</dd>
<dt>Package</dt>
<dd>Opc.UaFx.Advanced v2.59.0</dd>
<dt>Also in</dt>
<dd>Opc.UaFx.Client</dd>
</dl>

## Properties

### Header

Gets the header of the request.

<div class="api-signature" data-lang="csharp">

```csharp
IOpcServiceRequestHeader Header { get; }
```

</div>

<div class="api-signature" data-lang="vbnet">

```vbnet
ReadOnly Property Header As IOpcServiceRequestHeader
```

</div>

**Property value**

[IOpcServiceRequestHeader](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.iopcservicerequestheader/)

The [IOpcServiceRequestHeader](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.iopcservicerequestheader/) of the request.