# FileTypeValidatorOptions

**Kind:** Type

**Source:** [`packages/common/pipes/file/file-type.validator.ts`](https://github.com/nestjs/nest/blob/master/packages/common/pipes/file/file-type.validator.ts#L13)

**Part of:** [Common](subsystem-packages-common)

## Definition

```ts
{ fileType: string | RegExp; errorMessage?: string | ((ctx: FileTypeValidatorContext) => string); skipMagicNumbersValidation?: boolean; fallbackToMimetype?: boolean; overrideMimeType?: boolean; }
```