Unable to capture message id of sent message in a channel about tdl

[ramesh333]

I found the solution for above problem
https://core.telegram.org/tdlib/docs/classtd_1_1td__api_1_1update_message_send_succeeded.html

Initially when we sendMessage, it assigns a temporary id for message. Once the message is delivered. We receive update to the same bot client updateMessageSendSucceeded .

{
  "_": "updateMessageSendSucceeded",
  "message": {
    "_": "message",
    "id": 228589568,
    "sender_user_id": 0,
    "chat_id": -1001285598738,
    "is_outgoing": true,
    "can_be_edited": true,
    "can_be_forwarded": true,
    "can_be_deleted_only_for_self": false,
    "can_be_deleted_for_all_users": true,
    "is_channel_post": true,
    "contains_unread_mention": false,
    "date": 1559184555,
    "edit_date": 0,
    "reply_to_message_id": 0,
    "ttl": 0,
    "ttl_expires_in": 0,
    "via_bot_user_id": 0,
    "author_signature": "",
    "views": 1,
    "media_album_id": "0",
    "content": {
      "_": "messageText",
      "text": {
        "_": "formattedText",
        "text": "Daari",
        "entities": []
      }
    }
  },
  "old_message_id": 227541001
}

It contains updated new id and the old temporary id through which we an map.

Can some one suggest me better way to get the message_id synchronously. Once we get the get the id... just waiting for this updateMessageSendSucceeded update and matching for above message id doesn't seem like an efficient way for me.

I'm looking for something like then() implementation instead of using external variable