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37 lines
1.7 KiB
Markdown
37 lines
1.7 KiB
Markdown
---
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title: "updateChatParticipant"
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description: "A user has joined or left a specific chat"
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nav_exclude: true
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image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
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---
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# Constructor: updateChatParticipant
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[Back to constructors index](/API_docs/constructors/index.html)
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A user has joined or left a specific chat
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### Attributes:
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| Name | Type | Required | Description |
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|----------|---------------|----------|-------------|
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|chat\_id|[long](/API_docs/types/long.html) | Yes|[Chat](https://core.telegram.org/api/channel) ID|
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|date|[int](/API_docs/types/int.html) | Yes|When did this event occur|
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|actor\_id|[long](/API_docs/types/long.html) | Yes|User that triggered the change (inviter, admin that kicked the user, or the even the **user\_id** itself)|
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|user\_id|[long](/API_docs/types/long.html) | Yes|User that was affected by the change|
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|prev\_participant|[ChatParticipant](/API_docs/types/ChatParticipant.html) | Optional|Previous participant info (empty if this participant just joined)|
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|new\_participant|[ChatParticipant](/API_docs/types/ChatParticipant.html) | Optional|New participant info (empty if this participant just left)|
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|invite|[ExportedChatInvite](/API_docs/types/ExportedChatInvite.html) | Optional|The invite that was used to join the group|
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|qts|[int](/API_docs/types/int.html) | Yes|New **qts** value, see [updates »](https://core.telegram.org/api/updates) for more info.|
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### Type: [Update](/API_docs/types/Update.html)
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### Example:
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```
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$updateChatParticipant = ['_' => 'updateChatParticipant', 'chat_id' => long, 'date' => int, 'actor_id' => long, 'user_id' => long, 'prev_participant' => ChatParticipant, 'new_participant' => ChatParticipant, 'invite' => ExportedChatInvite, 'qts' => int];
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```
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