# AzureCosmosDBResource Methods

- Package: [Aspire.Hosting.Azure.CosmosDB](/reference/api/csharp/aspire.hosting.azure.cosmosdb.md)
- Type: [AzureCosmosDBResource](/reference/api/csharp/aspire.hosting.azure.cosmosdb/azurecosmosdbresource.md)
- Kind: `Methods`
- Members: `2`

A resource that represents an Azure Cosmos DB.

## AddAsExistingResource(AzureResourceInfrastructure)

- Name: `AddAsExistingResource(AzureResourceInfrastructure)`
- Modifiers: `override`
- Returns: `ProvisionableResource`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.Azure.CosmosDB/AzureCosmosDBResource.cs#L169-L192)

```csharp
public class AzureCosmosDBResource
{
    public override ProvisionableResource AddAsExistingResource(
        AzureResourceInfrastructure infra)
    {
        // ...
    }
}
```

## Parameters

- `infra` (`AzureResourceInfrastructure`)

## AddRoleAssignments(IAddRoleAssignmentsContext)

- Name: `AddRoleAssignments(IAddRoleAssignmentsContext)`
- Modifiers: `override`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.Azure.CosmosDB/AzureCosmosDBResource.cs#L200-L206)

```csharp
public class AzureCosmosDBResource
{
    public override void AddRoleAssignments(
        IAddRoleAssignmentsContext roleAssignmentContext)
    {
        // ...
    }
}
```

## Parameters

- `roleAssignmentContext` (`IAddRoleAssignmentsContext`)