---
title: "FileDigestFunction"
source: "https://github.com/remix-run/remix/blob/8905f3943706e1f53696ab83e70a84873cabfc90/packages/response/src/lib/file.ts#L44"
---

# FileDigestFunction

## Summary

Custom function for computing file digests.

## Signature

```ts
type FileDigestFunction<file> = (file: file) => Promise<string>

```