#### [Abblix\.Oidc\.Server](https://www.abblix.com/en/docs/api/abblix-oidc-server 'index')
### [Abblix\.Oidc\.Server\.Endpoints\.BackChannelAuthentication\.Interfaces](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.BackChannelAuthentication.Interfaces 'Abblix\.Oidc\.Server\.Endpoints\.BackChannelAuthentication\.Interfaces')

## IBackChannelAuthenticationRequestValidator Interface

Defines the contract for validating client\-initiated backchannel authentication requests,
ensuring that the requests conform to the necessary security and protocol standards\.

```csharp
public interface IBackChannelAuthenticationRequestValidator
```

Derived  
↳ [BackChannelAuthenticationRequestValidator](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.BackChannelAuthentication.BackChannelAuthenticationRequestValidator 'Abblix\.Oidc\.Server\.Endpoints\.BackChannelAuthentication\.BackChannelAuthenticationRequestValidator')
### Methods

## IBackChannelAuthenticationRequestValidator\.ValidateAsync\(BackChannelAuthenticationRequest, ClientRequest\) Method {#Abblix.Oidc.Server.Endpoints.BackChannelAuthentication.Interfaces.IBackChannelAuthenticationRequestValidator.ValidateAsync(Abblix.Oidc.Server.Model.BackChannelAuthenticationRequest,Abblix.Oidc.Server.Model.ClientRequest)}

Asynchronously validates a backchannel authentication request, checking its conformity
with the required standards and client information\.

```csharp
System.Threading.Tasks.Task<Abblix.Utils.Result<Abblix.Oidc.Server.Endpoints.BackChannelAuthentication.Interfaces.ValidBackChannelAuthenticationRequest,Abblix.Oidc.Server.Common.OidcError>> ValidateAsync(Abblix.Oidc.Server.Model.BackChannelAuthenticationRequest request, Abblix.Oidc.Server.Model.ClientRequest clientRequest);
```
#### Parameters

###### `request` [BackChannelAuthenticationRequest](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Model.BackChannelAuthenticationRequest 'Abblix\.Oidc\.Server\.Model\.BackChannelAuthenticationRequest') {#Abblix.Oidc.Server.Endpoints.BackChannelAuthentication.Interfaces.IBackChannelAuthenticationRequestValidator.ValidateAsync(Abblix.Oidc.Server.Model.BackChannelAuthenticationRequest,Abblix.Oidc.Server.Model.ClientRequest).request}

The backchannel authentication request to validate\.

###### `clientRequest` [ClientRequest](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Model.ClientRequest 'Abblix\.Oidc\.Server\.Model\.ClientRequest') {#Abblix.Oidc.Server.Endpoints.BackChannelAuthentication.Interfaces.IBackChannelAuthenticationRequestValidator.ValidateAsync(Abblix.Oidc.Server.Model.BackChannelAuthenticationRequest,Abblix.Oidc.Server.Model.ClientRequest).clientRequest}

The client request containing additional client\-related data for validation\.

#### Returns
[System\.Threading\.Tasks\.Task&lt;](https://learn.microsoft.com/en-us/dotnet/api/system.threading.tasks.task-1 'System\.Threading\.Tasks\.Task\`1')[Abblix\.Utils\.Result&lt;](https://learn.microsoft.com/en-us/dotnet/api/abblix.utils.result-2 'Abblix\.Utils\.Result\`2')[ValidBackChannelAuthenticationRequest](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.BackChannelAuthentication.Interfaces.ValidBackChannelAuthenticationRequest 'Abblix\.Oidc\.Server\.Endpoints\.BackChannelAuthentication\.Interfaces\.ValidBackChannelAuthenticationRequest')[,](https://learn.microsoft.com/en-us/dotnet/api/abblix.utils.result-2 'Abblix\.Utils\.Result\`2')[OidcError](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Common.OidcError 'Abblix\.Oidc\.Server\.Common\.OidcError')[&gt;](https://learn.microsoft.com/en-us/dotnet/api/abblix.utils.result-2 'Abblix\.Utils\.Result\`2')[&gt;](https://learn.microsoft.com/en-us/dotnet/api/system.threading.tasks.task-1 'System\.Threading\.Tasks\.Task\`1')  
A task that returns the result of the validation process as a [Abblix\.Utils\.Result&lt;&gt;](https://learn.microsoft.com/en-us/dotnet/api/abblix.utils.result-2 'Abblix\.Utils\.Result\`2')\.