I am building a Gmail Add-On. I want to get the thread Id of current open email thread using Google Apps Script. I tried to figure out in Google Developers documentation for GmailApp. But nothing found relevant.
You can retrieve messageId
of the current message from e.messageMetadata.messageId
of buildAddOn(e)
. Using this, you can retrieve threadId
as follows.
var threadId = GmailApp.getMessageById(messageId).getThread().getId();
If this was not what you want, I'm sorry.