I send a request to google via the app to let it post to your blogspot blog.
The app needs the blogger.com id, the 19-digit number at the end of the blogger.com URL.
https://draft.blogger.com/blog/posts/1978195328886667016
Then
easyblogger --blogid 1978195328886667016 get
Google opens a browser on your phone that looks like
but with your gmail address, rather than
mine.
You click your address and then it shows
asking if you
accept.
You accept and then it shows 
And that’s it. You don’t need to tell me your gmail id, and I can use the app to post dates to Your blogspot page when they are ready. Or even before you are sure of the dates because I can edit them after they are ready.
Doing that will let people know a performance is coming up, even though the exact date is not known.