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

## ClientIdValidator Class

Cross\-checks the supplied `client_id` against the operation type:
for [Update](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.DynamicClientOperation#Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.DynamicClientOperation.Update 'Abblix\.Oidc\.Server\.Endpoints\.DynamicClientManagement\.Validation\.DynamicClientOperation\.Update') \(RFC 7592 §2\.2\) the client must already exist,
for [Register](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.DynamicClientOperation#Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.DynamicClientOperation.Register 'Abblix\.Oidc\.Server\.Endpoints\.DynamicClientManagement\.Validation\.DynamicClientOperation\.Register') \(RFC 7591 §3\) it must not\.
A missing `client_id` is treated as new\-registration with server\-assigned id\.

```csharp
public class ClientIdValidator : Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.IClientRegistrationContextValidator
```

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

Implements [IClientRegistrationContextValidator](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.IClientRegistrationContextValidator 'Abblix\.Oidc\.Server\.Endpoints\.DynamicClientManagement\.Validation\.IClientRegistrationContextValidator')
### Constructors

## ClientIdValidator\(ILogger\<ClientIdValidator\>, IClientInfoProvider\) Constructor {#Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientIdValidator.ClientIdValidator(Microsoft.Extensions.Logging.ILogger_Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientIdValidator_,Abblix.Oidc.Server.Features.ClientInformation.IClientInfoProvider)}

Cross\-checks the supplied `client_id` against the operation type:
for [Update](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.DynamicClientOperation#Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.DynamicClientOperation.Update 'Abblix\.Oidc\.Server\.Endpoints\.DynamicClientManagement\.Validation\.DynamicClientOperation\.Update') \(RFC 7592 §2\.2\) the client must already exist,
for [Register](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.DynamicClientOperation#Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.DynamicClientOperation.Register 'Abblix\.Oidc\.Server\.Endpoints\.DynamicClientManagement\.Validation\.DynamicClientOperation\.Register') \(RFC 7591 §3\) it must not\.
A missing `client_id` is treated as new\-registration with server\-assigned id\.

```csharp
public ClientIdValidator(Microsoft.Extensions.Logging.ILogger<Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientIdValidator> logger, Abblix.Oidc.Server.Features.ClientInformation.IClientInfoProvider clientInfoProvider);
```
#### Parameters

###### `logger` [Microsoft\.Extensions\.Logging\.ILogger&lt;](https://learn.microsoft.com/en-us/dotnet/api/microsoft.extensions.logging.ilogger-1 'Microsoft\.Extensions\.Logging\.ILogger\`1')[ClientIdValidator](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientIdValidator 'Abblix\.Oidc\.Server\.Endpoints\.DynamicClientManagement\.Validation\.ClientIdValidator')[&gt;](https://learn.microsoft.com/en-us/dotnet/api/microsoft.extensions.logging.ilogger-1 'Microsoft\.Extensions\.Logging\.ILogger\`1') {#Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientIdValidator.ClientIdValidator(Microsoft.Extensions.Logging.ILogger_Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientIdValidator_,Abblix.Oidc.Server.Features.ClientInformation.IClientInfoProvider).logger}

Logger used for warnings about register/update conflicts\.

###### `clientInfoProvider` [IClientInfoProvider](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.ClientInformation.IClientInfoProvider 'Abblix\.Oidc\.Server\.Features\.ClientInformation\.IClientInfoProvider') {#Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientIdValidator.ClientIdValidator(Microsoft.Extensions.Logging.ILogger_Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientIdValidator_,Abblix.Oidc.Server.Features.ClientInformation.IClientInfoProvider).clientInfoProvider}

Store consulted to check for existing client records\.
### Methods

## ClientIdValidator\.ValidateAsync\(ClientRegistrationValidationContext\) Method {#Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientIdValidator.ValidateAsync(Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientRegistrationValidationContext)}

Validates the slice of registration metadata this implementation owns\.
May mutate [ClientRegistrationValidationContext](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientRegistrationValidationContext 'Abblix\.Oidc\.Server\.Endpoints\.DynamicClientManagement\.Validation\.ClientRegistrationValidationContext') with derived values
\(for example the resolved sector identifier\)\.

```csharp
public System.Threading.Tasks.Task<Abblix.Oidc.Server.Common.OidcError?> ValidateAsync(Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientRegistrationValidationContext context);
```
#### Parameters

###### `context` [ClientRegistrationValidationContext](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientRegistrationValidationContext 'Abblix\.Oidc\.Server\.Endpoints\.DynamicClientManagement\.Validation\.ClientRegistrationValidationContext') {#Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientIdValidator.ValidateAsync(Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientRegistrationValidationContext).context}

The shared validation context for the current request\.

Implements [ValidateAsync\(ClientRegistrationValidationContext\)](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.IClientRegistrationContextValidator#Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.IClientRegistrationContextValidator.ValidateAsync(Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Validation.ClientRegistrationValidationContext) 'Abblix\.Oidc\.Server\.Endpoints\.DynamicClientManagement\.Validation\.IClientRegistrationContextValidator\.ValidateAsync\(Abblix\.Oidc\.Server\.Endpoints\.DynamicClientManagement\.Validation\.ClientRegistrationValidationContext\)')

#### Returns
[System\.Threading\.Tasks\.Task&lt;](https://learn.microsoft.com/en-us/dotnet/api/system.threading.tasks.task-1 'System\.Threading\.Tasks\.Task\`1')[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/system.threading.tasks.task-1 'System\.Threading\.Tasks\.Task\`1')  
An [OidcError](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Common.OidcError 'Abblix\.Oidc\.Server\.Common\.OidcError') describing the rejection, or `null` when valid\.