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

## IInitialAccessTokenService Interface

Issues initial access tokens that authorize calls to the client registration endpoint
per RFC 7591 Section 3\.

```csharp
public interface IInitialAccessTokenService
```

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

## IInitialAccessTokenService\.IssueTokenAsync\(string, DateTimeOffset, Nullable\<TimeSpan\>\) Method {#Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Interfaces.IInitialAccessTokenService.IssueTokenAsync(string,System.DateTimeOffset,System.Nullable_System.TimeSpan_)}

Issues an initial access token for authorizing client registration\.

```csharp
System.Threading.Tasks.Task<string> IssueTokenAsync(string subject, System.DateTimeOffset issuedAt, System.Nullable<System.TimeSpan> expiresIn);
```
#### Parameters

###### `subject` [System\.String](https://learn.microsoft.com/en-us/dotnet/api/system.string 'System\.String') {#Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Interfaces.IInitialAccessTokenService.IssueTokenAsync(string,System.DateTimeOffset,System.Nullable_System.TimeSpan_).subject}

A unique identifier for the token, used as the JWT subject for revocation tracking\.

###### `issuedAt` [System\.DateTimeOffset](https://learn.microsoft.com/en-us/dotnet/api/system.datetimeoffset 'System\.DateTimeOffset') {#Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Interfaces.IInitialAccessTokenService.IssueTokenAsync(string,System.DateTimeOffset,System.Nullable_System.TimeSpan_).issuedAt}

The timestamp when the token is issued\.

###### `expiresIn` [System\.Nullable&lt;](https://learn.microsoft.com/en-us/dotnet/api/system.nullable-1 'System\.Nullable\`1')[System\.TimeSpan](https://learn.microsoft.com/en-us/dotnet/api/system.timespan 'System\.TimeSpan')[&gt;](https://learn.microsoft.com/en-us/dotnet/api/system.nullable-1 'System\.Nullable\`1') {#Abblix.Oidc.Server.Endpoints.DynamicClientManagement.Interfaces.IInitialAccessTokenService.IssueTokenAsync(string,System.DateTimeOffset,System.Nullable_System.TimeSpan_).expiresIn}

The optional duration after which the token expires\.

#### Returns
[System\.Threading\.Tasks\.Task&lt;](https://learn.microsoft.com/en-us/dotnet/api/system.threading.tasks.task-1 'System\.Threading\.Tasks\.Task\`1')[System\.String](https://learn.microsoft.com/en-us/dotnet/api/system.string 'System\.String')[&gt;](https://learn.microsoft.com/en-us/dotnet/api/system.threading.tasks.task-1 'System\.Threading\.Tasks\.Task\`1')  
A task that results in the encoded initial access token\.