MadelineProtoDocs/docs/API_docs/constructors/fileHash.md
2019-12-27 17:48:04 +01:00

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---
title: fileHash
description: SHA256 Hash of an uploaded file, to be checked for validity after download
image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
---
# Constructor: fileHash
[Back to constructors index](index.md)
SHA256 Hash of an uploaded file, to be checked for validity after download
### Attributes:
| Name | Type | Required | Description |
|----------|---------------|----------|-------------|
|offset|[int](../types/int.md) | Yes|Offset from where to start computing SHA-256 hash|
|limit|[int](../types/int.md) | Yes|Length|
|hash|[bytes](../types/bytes.md) | Yes|SHA-256 Hash of file chunk, to be checked for validity after download|
### Type: [FileHash](../types/FileHash.md)
### Example:
```php
$fileHash = ['_' => 'fileHash', 'offset' => int, 'limit' => int, 'hash' => 'bytes'];
```
Or, if you're into Lua:
```lua
fileHash={_='fileHash', offset=int, limit=int, hash='bytes'}
```