---
url: /api/third-parties/formio/types/components/class-alter-host.md
description: api documentation of AlterHost from @tsed/formio
---

## Usage

```typescript
import { AlterHost } from "@tsed/formio";
```

> See [/packages/third-parties/formio/src/components/AlterHost.ts](https://github.com/tsedio/tsed/blob/v8.38.2/packages/third-parties/formio/src/components/AlterHost.ts#L0-L0).

## Overview

```ts
class AlterHost implements AlterHook<string> {
    transform(baseUrl: string, ctx: PlatformContext): string;
}
```

## transform

```ts
transform(baseUrl: string, ctx: PlatformContext): string;
```