MadelineProtoDocs/old_docs/API_docs_v70/methods/messages_getDocumentByHash.md

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---
title: messages.getDocumentByHash
description: Get document by SHA256 hash
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image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
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---
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# Method: messages.getDocumentByHash
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[Back to methods index](index.md)
Get document by SHA256 hash
### Parameters:
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| Name | Type | Description | Required |
|----------|---------------|-------------|----------|
|sha256|[bytes](../types/bytes.md) | `hash('sha256', $filename, true);` | Yes|
|size|[int](../types/int.md) | The file size | Yes|
|mime\_type|[string](../types/string.md) | The mime type of the file | Yes|
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### Return type: [Document](../types/Document.md)
### Can bots use this method: **YES**
### MadelineProto Example:
```
if (!file_exists('madeline.php')) {
copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
}
include 'madeline.php';
$MadelineProto = new \danog\MadelineProto\API('session.madeline');
$MadelineProto->start();
$Document = $MadelineProto->messages->getDocumentByHash(['sha256' => 'bytes', 'size' => int, 'mime_type' => 'string', ]);
```
### [PWRTelegram HTTP API](https://pwrtelegram.xyz) example (NOT FOR MadelineProto):
### As a bot:
POST/GET to `https://api.pwrtelegram.xyz/botTOKEN/madeline`
Parameters:
* method - messages.getDocumentByHash
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* params - `{"sha256": {"_": "bytes", "bytes":"base64 encoded bytes"}, "size": int, "mime_type": "string", }`
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### As a user:
POST/GET to `https://api.pwrtelegram.xyz/userTOKEN/messages.getDocumentByHash`
Parameters:
sha256 - Json encoded bytes
size - Json encoded int
mime_type - Json encoded string
Or, if you're into Lua:
```
Document = messages.getDocumentByHash({sha256='bytes', size=int, mime_type='string', })
```
### Errors this method can return:
| Error | Description |
|----------|---------------|
|SHA256_HASH_INVALID|The provided SHA256 hash is invalid|