upgradeBasicGroupChatToSupergroupChat

Creates a new supergroup from an existing basic group and sends a corresponding messageChatUpgradeTo and messageChatUpgradeFrom.
Deactivates the original basic group.

upgradeBasicGroupChatToSupergroupChat(chat_id, callback, data)

Field	Type	Description
chat_id	int53	Identifier of the chat to upgrade.

Example

• Creates new channel supergroup chat from existing group chat 1234567890.

  migrateGroupChatToChannelChat(-281244848)

  Response:

  {
    ["@type"] = "chat",
    can_be_reported = false,
    client_data = "",
    id = "-1001223535930",
    is_pinned = false,
    last_message = {
      ["@type"] = "message",
      author_signature = "",
      can_be_deleted_for_all_users = false,
      can_be_deleted_only_for_self = false,
      can_be_edited = false,
      can_be_forwarded = false,
      chat_id = "-1001234567890",
      contains_unread_mention = false,
      content = {
        ["@type"] = "messageChatUpgradeFrom",
        basic_group_id = 281244848,
        title = "TEST"
      },
      date = 1529848897,
      edit_date = 0,
      id = 1048576,
      is_channel_post = false,
      is_outgoing = true,
      media_album_id = "0",
      reply_to_message_id = 0,
      sender_user_id = 555555555,
      ttl = 0,
      ttl_expires_in = 0,
      via_bot_user_id = 0,
      views = 0
    },
    last_read_inbox_message_id = 1048576,
    last_read_outbox_message_id = 0,
    notification_settings = {
      ["@type"] = "notificationSettings",
      mute_for = 0,
      show_preview = true,
      sound = "default"
    },
    order = "0",
    reply_markup_message_id = 0,
    title = "TEST",
    type = {
      ["@type"] = "chatTypeSupergroup",
      is_channel = false,
      supergroup_id = 1223535930
    },
    unread_count = 0,
    unread_mention_count = 0
  }