# AzureServiceBusTopicResource.addServiceBusSubscription

- Module: [Aspire.Hosting.Azure.ServiceBus](/reference/api/typescript/aspire.hosting.azure.servicebus.md)
- Defined on: [AzureServiceBusTopicResource](/reference/api/typescript/aspire.hosting.azure.servicebus/azureservicebustopicresource.md)
- Version: `13.4.0`
- Kind: `method`

Adds an Azure Service Bus Subscription resource to the application model.

## Definition

```typescript
interface AzureServiceBusTopicResource {
  // ... omitted for brevity
  addServiceBusSubscription(
      name: string,
      subscriptionName?: string): AzureServiceBusSubscriptionResource;
}
```

## Signature

```typescript
addServiceBusSubscription(
    name: string,
    subscriptionName?: string): AzureServiceBusSubscriptionResource
```

## Parameters

- `name` (`string`)
- `subscriptionName` (`string`) `optional`

## Returns

[AzureServiceBusSubscriptionResource](/reference/api/typescript/aspire.hosting.azure.servicebus/azureservicebussubscriptionresource.md) `builder`

## Defined on

- [AzureServiceBusTopicResource](/reference/api/typescript/aspire.hosting.azure.servicebus/azureservicebustopicresource.md) -- `handle`