63 lines
2.2 KiB
Markdown
63 lines
2.2 KiB
Markdown
---
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title: messages.addChatUser
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description: Adds a user to a chat and sends a service message on it.
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image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
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redirect_from: /API_docs/methods/messages_addChatUser.html
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---
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# Method: messages.addChatUser
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[Back to methods index](index.md)
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Adds a user to a chat and sends a service message on it.
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### Parameters:
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| Name | Type | Description | Required |
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|----------|---------------|-------------|----------|
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|chat\_id|[Username, chat ID, Update, Message or InputPeer](../types/InputPeer.md) | The chat where to invite users | Optional|
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|user\_id|[Username, chat ID, Update, Message or InputUser](../types/InputUser.md) | User ID to be added | Optional|
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|fwd\_limit|[int](../types/int.md) | Number of last messages to be forwarded | Yes|
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### Return type: [Updates](../types/Updates.md)
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### Can bots use this method: **NO**
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### MadelineProto Example ([now async for huge speed and parallelism!](https://docs.madelineproto.xyz/docs/ASYNC.html)):
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```php
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if (!file_exists('madeline.php')) {
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copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
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}
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include 'madeline.php';
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$MadelineProto = new \danog\MadelineProto\API('session.madeline');
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$MadelineProto->start();
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$Updates = $MadelineProto->messages->addChatUser(['chat_id' => InputPeer, 'user_id' => InputUser, 'fwd_limit' => int, ]);
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```
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Or, if you're into Lua:
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```lua
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Updates = messages.addChatUser({chat_id=InputPeer, user_id=InputUser, fwd_limit=int, })
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```
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### Errors
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| Code | Type | Description |
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|------|----------|---------------|
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|400|CHAT_ADMIN_REQUIRED|You must be an admin in this chat to do this|
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|400|CHAT_ID_INVALID|The provided chat id is invalid|
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|400|INPUT_USER_DEACTIVATED|The specified user was deleted|
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|400|PEER_ID_INVALID|The provided peer id is invalid|
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|400|USER_ALREADY_PARTICIPANT|The user is already in the group|
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|400|USER_ID_INVALID|The provided user ID is invalid|
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|400|USERS_TOO_MUCH|The maximum number of users has been exceeded (to create a chat, for example)|
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|403|USER_NOT_MUTUAL_CONTACT|The provided user is not a mutual contact|
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|403|USER_PRIVACY_RESTRICTED|The user's privacy settings do not allow you to do this|
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