MadelineProto/old_docs/API_docs_v45/methods/messages_getDhConfig.md

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---
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title: messages.getDhConfig
description: messages.getDhConfig parameters, return type and example
---
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## Method: messages.getDhConfig
[Back to methods index](index.md)
### Parameters:
| Name | Type | Required |
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|----------|---------------|----------|
|version|[int](../types/int.md) | Yes|
|random\_length|[int](../types/int.md) | Yes|
### Return type: [messages\_DhConfig](../types/messages_DhConfig.md)
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### Can bots use this method: **NO**
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### Errors this method can return:
| Error | Description |
|----------|---------------|
|RANDOM_LENGTH_INVALID|Random length invalid|
### Example:
```
$MadelineProto = new \danog\MadelineProto\API();
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$MadelineProto->session = 'mySession.madeline';
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);
}
$messages_DhConfig = $MadelineProto->messages->getDhConfig(['version' => int, 'random_length' => int, ]);
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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 user:
POST/GET to `https://api.pwrtelegram.xyz/userTOKEN/messages.getDhConfig`
Parameters:
version - Json encoded int
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random_length - Json encoded int
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Or, if you're into Lua:
```
messages_DhConfig = messages.getDhConfig({version=int, random_length=int, })
```