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

## PushModeGrantProcessor Class

Handles CIBA push mode token retrieval validation at the token endpoint\.
In push mode, tokens are delivered directly to the client's notification endpoint\.
Push mode clients should NEVER poll the token endpoint \- this is an error\.

```csharp
public class PushModeGrantProcessor : Abblix.Oidc.Server.Features.BackChannelAuthentication.Interfaces.IBackChannelGrantProcessor
```

Inheritance [System\.Object](https://learn.microsoft.com/en-us/dotnet/api/system.object 'System\.Object') → PushModeGrantProcessor

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

## PushModeGrantProcessor\.ProcessAuthenticatedRequestAsync\(string, BackChannelAuthenticationRequest\) Method {#Abblix.Oidc.Server.Features.BackChannelAuthentication.GrantProcessors.PushModeGrantProcessor.ProcessAuthenticatedRequestAsync(string,Abblix.Oidc.Server.Features.BackChannelAuthentication.BackChannelAuthenticationRequest)}

Defensive fallback that returns `invalid_grant`\. In practice this method is unreachable
because [ValidateTokenEndpointAccess\(\)](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.BackChannelAuthentication.GrantProcessors.PushModeGrantProcessor#Abblix.Oidc.Server.Features.BackChannelAuthentication.GrantProcessors.PushModeGrantProcessor.ValidateTokenEndpointAccess() 'Abblix\.Oidc\.Server\.Features\.BackChannelAuthentication\.GrantProcessors\.PushModeGrantProcessor\.ValidateTokenEndpointAccess\(\)') short\-circuits push\-mode token\-endpoint requests\.

```csharp
public System.Threading.Tasks.Task<Abblix.Utils.Result<Abblix.Oidc.Server.Endpoints.Token.Interfaces.AuthorizedGrant,Abblix.Oidc.Server.Common.OidcError>> ProcessAuthenticatedRequestAsync(string authenticationRequestId, Abblix.Oidc.Server.Features.BackChannelAuthentication.BackChannelAuthenticationRequest request);
```
#### Parameters

###### `authenticationRequestId` [System\.String](https://learn.microsoft.com/en-us/dotnet/api/system.string 'System\.String') {#Abblix.Oidc.Server.Features.BackChannelAuthentication.GrantProcessors.PushModeGrantProcessor.ProcessAuthenticatedRequestAsync(string,Abblix.Oidc.Server.Features.BackChannelAuthentication.BackChannelAuthenticationRequest).authenticationRequestId}

###### `request` [BackChannelAuthenticationRequest](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.BackChannelAuthentication.BackChannelAuthenticationRequest 'Abblix\.Oidc\.Server\.Features\.BackChannelAuthentication\.BackChannelAuthenticationRequest') {#Abblix.Oidc.Server.Features.BackChannelAuthentication.GrantProcessors.PushModeGrantProcessor.ProcessAuthenticatedRequestAsync(string,Abblix.Oidc.Server.Features.BackChannelAuthentication.BackChannelAuthenticationRequest).request}

Implements [ProcessAuthenticatedRequestAsync\(string, BackChannelAuthenticationRequest\)](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.BackChannelAuthentication.Interfaces.IBackChannelGrantProcessor#Abblix.Oidc.Server.Features.BackChannelAuthentication.Interfaces.IBackChannelGrantProcessor.ProcessAuthenticatedRequestAsync(string,Abblix.Oidc.Server.Features.BackChannelAuthentication.BackChannelAuthenticationRequest) 'Abblix\.Oidc\.Server\.Features\.BackChannelAuthentication\.Interfaces\.IBackChannelGrantProcessor\.ProcessAuthenticatedRequestAsync\(string, Abblix\.Oidc\.Server\.Features\.BackChannelAuthentication\.BackChannelAuthenticationRequest\)')

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

## PushModeGrantProcessor\.ValidateTokenEndpointAccess\(\) Method {#Abblix.Oidc.Server.Features.BackChannelAuthentication.GrantProcessors.PushModeGrantProcessor.ValidateTokenEndpointAccess()}

Push mode delivers tokens directly to the client's notification endpoint, so any call to the
token endpoint with a push\-mode `auth_req_id` is a protocol error and is rejected with
`invalid_grant`\.

```csharp
public Abblix.Oidc.Server.Common.OidcError ValidateTokenEndpointAccess();
```

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

#### Returns
[OidcError](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Common.OidcError 'Abblix\.Oidc\.Server\.Common\.OidcError')