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

## IEndSessionRequestValidator Interface

Validates incoming RP\-initiated logout requests against the rules of
OpenID Connect RP\-Initiated Logout 1\.0 §2 \(e\.g\. `id_token_hint` integrity,
`post_logout_redirect_uri` against the client's registered list, end\-user
confirmation when no `id_token_hint` is provided\)\.

```csharp
public interface IEndSessionRequestValidator
```

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

## IEndSessionRequestValidator\.ValidateAsync\(EndSessionRequest\) Method {#Abblix.Oidc.Server.Endpoints.EndSession.Interfaces.IEndSessionRequestValidator.ValidateAsync(Abblix.Oidc.Server.Model.EndSessionRequest)}

Runs the configured validation pipeline over the raw end\-session request\.

```csharp
System.Threading.Tasks.Task<Abblix.Utils.Result<Abblix.Oidc.Server.Endpoints.EndSession.Interfaces.ValidEndSessionRequest,Abblix.Oidc.Server.Common.OidcError>> ValidateAsync(Abblix.Oidc.Server.Model.EndSessionRequest request);
```
#### Parameters

###### `request` [EndSessionRequest](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Model.EndSessionRequest 'Abblix\.Oidc\.Server\.Model\.EndSessionRequest') {#Abblix.Oidc.Server.Endpoints.EndSession.Interfaces.IEndSessionRequestValidator.ValidateAsync(Abblix.Oidc.Server.Model.EndSessionRequest).request}

The wire\-level request to validate\.

#### 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')[ValidEndSessionRequest](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.EndSession.Interfaces.ValidEndSessionRequest 'Abblix\.Oidc\.Server\.Endpoints\.EndSession\.Interfaces\.ValidEndSessionRequest')[,](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 [ValidEndSessionRequest](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.EndSession.Interfaces.ValidEndSessionRequest 'Abblix\.Oidc\.Server\.Endpoints\.EndSession\.Interfaces\.ValidEndSessionRequest') on success, or an [OidcError](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Common.OidcError 'Abblix\.Oidc\.Server\.Common\.OidcError')
identifying the first failed step\.