# OpcServiceRequestHeader Members
> Reference: Represents the common parameters of the request of a service, as defined by the RequestHeader of OPC UA.
- Type
- OpcServiceRequestHeader
- Namespace
- Opc.UaFx.Services
- Assembly
- Opc.UaFx.Advanced.dll
- Package
- Opc.UaFx.Advanced v2.59.0
- Also in
- Opc.UaFx.Client
## Constructors
### OpcServiceRequestHeader
Initializes a new instance of the [OpcServiceRequestHeader](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opcservicerequestheader/) class.
```csharp
public OpcServiceRequestHeader()
```
```vbnet
Public Sub New()
```
## Properties
### LocalEndpoint
Gets the local endpoint of the connection on which a server received the request.
```csharp
public EndPoint LocalEndpoint { get; }
```
```vbnet
Public ReadOnly Property LocalEndpoint As EndPoint
```
**Property value**
[EndPoint](https://learn.microsoft.com/dotnet/api/system.net.endpoint)
The local [EndPoint](https://learn.microsoft.com/dotnet/api/system.net.endpoint) of the server, or a null reference (Nothing in Visual Basic) if the header has not been received by a server or the connection does not provide it.
### RemoteEndpoint
Gets the remote endpoint of the connection on which a server received the request.
```csharp
public EndPoint RemoteEndpoint { get; }
```
```vbnet
Public ReadOnly Property RemoteEndpoint As EndPoint
```
**Property value**
[EndPoint](https://learn.microsoft.com/dotnet/api/system.net.endpoint)
The [EndPoint](https://learn.microsoft.com/dotnet/api/system.net.endpoint) of the client, or a null reference (Nothing in Visual Basic) if the header has not been received by a server or the connection does not provide it.
### TimeoutHint
Gets or sets the time in milliseconds after which the request is to be cancelled.
```csharp
public long TimeoutHint { get; set; }
```
```vbnet
Public Property TimeoutHint As Long
```
**Property value**
[Int64](https://learn.microsoft.com/dotnet/api/system.int64)
The timeout of the request in milliseconds, or 0 for no timeout.
**Implements**
[TimeoutHint](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.iopcservicerequestheader/members#timeouthint)
**Remarks**
The value is stored as an unsigned 32-bit integer; values less than 0 or greater than [MaxValue](https://learn.microsoft.com/dotnet/api/system.uint32.maxvalue) are not stored as specified.
### Timestamp
Gets or sets the time the request has been sent.
```csharp
public DateTime Timestamp { get; set; }
```
```vbnet
Public Property Timestamp As Date
```
**Property value**
[DateTime](https://learn.microsoft.com/dotnet/api/system.datetime)
The time the client sent the request.
**Implements**
[Timestamp](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.iopcservicerequestheader/members#timestamp)