# YarpRoute.withTransformPathPrefix

- Module: [Aspire.Hosting.Yarp](/reference/api/typescript/aspire.hosting.yarp.md)
- Defined on: [YarpRoute](/reference/api/typescript/aspire.hosting.yarp/yarproute.md)
- Version: `13.4.0`
- Kind: `method`

Adds the transform which will prefix the request path with the given value.

## Definition

```typescript
interface YarpRoute {
  // ... omitted for brevity
  withTransformPathPrefix(prefix: string): YarpRoute;
}
```

## Signature

```typescript
withTransformPathPrefix(prefix: string): YarpRoute
```

## Parameters

- `prefix` (`string`)

## Returns

[YarpRoute](/reference/api/typescript/aspire.hosting.yarp/yarproute.md)

## Defined on

- [YarpRoute](/reference/api/typescript/aspire.hosting.yarp/yarproute.md) -- `handle`