# BeforeRequestHook

**Kind:** Type

**Source:** [`src/helper/ssg/ssg.ts`](https://github.com/honojs/hono/blob/main/src/helper/ssg/ssg.ts#L110)

**Part of:** [Helper](subsystem-src-helper)

## Definition

```ts
(req: Request) => Request | false | Promise<Request | false>
```