# AzureCognitiveServicesProjectResource.addCosmosConnection

- Module: [Aspire.Hosting.Foundry](/reference/api/typescript/aspire.hosting.foundry.md)
- Defined on: [AzureCognitiveServicesProjectResource](/reference/api/typescript/aspire.hosting.foundry/azurecognitiveservicesprojectresource.md)
- Version: `13.4.0-preview.1.26281.18`
- Kind: `method`

Adds CosmosDB to a project as a connection

## Definition

```typescript
interface AzureCognitiveServicesProjectResource {
  // ... omitted for brevity
  addCosmosConnection(db: AzureCosmosDBResource): AzureCognitiveServicesProjectConnectionResource;
}
```

## Signature

```typescript
addCosmosConnection(db: AzureCosmosDBResource): AzureCognitiveServicesProjectConnectionResource
```

## Parameters

- `db` (`AzureCosmosDBResource`)

## Returns

[AzureCognitiveServicesProjectConnectionResource](/reference/api/typescript/aspire.hosting.foundry/azurecognitiveservicesprojectconnectionresource.md) `builder`

## Defined on

- [AzureCognitiveServicesProjectResource](/reference/api/typescript/aspire.hosting.foundry/azurecognitiveservicesprojectresource.md) -- `handle`