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MadelineProto/old_docs/API_docs_v55/methods/messages_getDocumentByHash.md

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---
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title: messages.getDocumentByHash
description: messages.getDocumentByHash parameters, return type and example
---
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## Method: messages.getDocumentByHash
[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|
### Example:
```
if (!file_exists('madeline.php')) {
copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
}
include 'madeline.php';
// !!! This API id/API hash combination will not work !!!
// !!! You must get your own @ my.telegram.org !!!
$api_id = 0;
$api_hash = '';
$MadelineProto = new \danog\MadelineProto\API('session.madeline', ['app_info' => ['api_id' => $api_id, 'api_hash' => $api_hash]]);
$MadelineProto->start();
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$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
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* 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`
Parameters:
sha256 - Json encoded bytes
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size - Json encoded int
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mime_type - Json encoded string
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Or, if you're into Lua:
```
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Document = messages.getDocumentByHash({sha256='bytes', size=int, mime_type='string', })
```