# withOrigin

- Module: [Aspire.Hosting.Azure.FrontDoor](/reference/api/typescript/aspire.hosting.azure.frontdoor.md)
- Version: `13.4.0-preview.1.26281.18`
- Kind: `method`
- Source: [GitHub](https://github.com/microsoft/aspire)

Adds an origin (backend) to the Azure Front Door resource. Each origin gets its own Front Door endpoint with a distinct `*.azurefd.net` hostname, its own origin group, and a default route.

## Definition

```typescript
interface AzureFrontDoorResource {
  // ... omitted for brevity
  withOrigin(resource: IComputeResource): AzureFrontDoorResource
}
```

## Parameters

- `resource` (`IComputeResource`)

## Returns

[AzureFrontDoorResource](/reference/api/typescript/aspire.hosting.azure.frontdoor/azurefrontdoorresource.md) `builder`

## Applies to

- [AzureFrontDoorResource](/reference/api/typescript/aspire.hosting.azure.frontdoor/azurefrontdoorresource.md)