59 lines
1.6 KiB
Markdown
59 lines
1.6 KiB
Markdown
---
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title: contacts.resolveUsername
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description: Resolve a @username to get peer info
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image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
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redirect_from: /API_docs/methods/contacts_resolveUsername.html
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---
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# Method: contacts.resolveUsername
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[Back to methods index](index.md)
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Resolve a @username to get peer info
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### Parameters:
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| Name | Type | Description | Required |
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|----------|---------------|-------------|----------|
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|username|[string](../types/string.md) | @username to resolve | Yes|
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### Return type: [User](../types/User.md)
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### Can bots use this method: **YES**
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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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$User = $MadelineProto->contacts->resolveUsername(['username' => 'string', ]);
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```
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Or, if you're into Lua:
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```lua
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User = contacts.resolveUsername({username='string', })
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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|CONNECTION_LAYER_INVALID|Layer invalid|
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|400|USERNAME_INVALID|The provided username is not valid|
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|400|USERNAME_NOT_OCCUPIED|The provided username is not occupied|
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|406|AUTH_KEY_DUPLICATED|An auth key with the same ID was already generated|
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|401|AUTH_KEY_PERM_EMPTY|The temporary auth key must be binded to the permanent auth key to use these methods.|
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|401|SESSION_PASSWORD_NEEDED|2FA is enabled, use a password to login|
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