MadelineProto/old_docs/API_docs_v73/methods/messages_getDocumentByHash.md

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---
title: messages.getDocumentByHash
description: messages.getDocumentByHash parameters, return type and example
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---
## Method: messages.getDocumentByHash
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[Back to methods index](index.md)
### Parameters:
| Name | Type | Required |
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|----------|---------------|----------|
|sha256|[bytes](../types/bytes.md) | Yes|
|size|[int](../types/int.md) | Yes|
|mime\_type|[string](../types/string.md) | Yes|
### Return type: [Document](../types/Document.md)
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### Can bots use this method: **YES**
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### Errors this method can return:
| Error | Description |
|----------|---------------|
|SHA256_HASH_INVALID|The provided SHA256 hash is invalid|
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### Example:
```
$MadelineProto = new \danog\MadelineProto\API();
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$MadelineProto->session = 'mySession.madeline';
if (isset($token)) { // Login as a bot
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$MadelineProto->bot_login($token);
}
if (isset($number)) { // Login as a user
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$MadelineProto->phone_login($number);
$code = readline('Enter the code you received: '); // Or do this in two separate steps in an HTTP API
$MadelineProto->complete_phone_login($code);
}
$Document = $MadelineProto->messages->getDocumentByHash(['sha256' => 'bytes', 'size' => int, 'mime_type' => 'string', ]);
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```
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Or, if you're using the [PWRTelegram HTTP API](https://pwrtelegram.xyz):
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### As a bot:
POST/GET to `https://api.pwrtelegram.xyz/botTOKEN/madeline`
Parameters:
* method - messages.getDocumentByHash
* params - `{"sha256": "bytes", "size": int, "mime_type": "string", }`
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### As a user:
POST/GET to `https://api.pwrtelegram.xyz/userTOKEN/messages.getDocumentByHash`
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Parameters:
sha256 - Json encoded bytes
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size - Json encoded int
mime_type - Json encoded string
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Or, if you're into Lua:
```
Document = messages.getDocumentByHash({sha256='bytes', size=int, mime_type='string', })
```