logic app check who has read a yammer post - azure

Question

I'm looking at the Logic Apps Yammer connector.
When we put a message on Yammer we want to find out who has read it. Is there a way to find a list of people in a Yammer group who have not read a Yammer message?
If it can't be done in Logic Apps, is there another way to do it?
As a workaround, I'm trying to do this on the basis of who has liked a message and have done this in Logic apps. It gives a message that the response is not in JSON format. Also, it gives me the number of likes rather than a list of people who have liked it.
This is what I put into the HTTP request
After our chat I tried this
and this
and got this error message.
"error": "invalid_request",
"error_description": "AADSTS900144: The request body must contain the following parameter: 'grant_type'.\r\nTrace ID: d41c78c7-afa5-405f-8f52-8b587ecf1a00\r\nCorrelation ID: 9ffd2247-78ca-4be2-8111-c17a95a830d6\r\nTimestamp: 2020-01-23 10:09:55Z",
"error_codes": [
900144
]
I also tried putting in my Azure directory id in place of tenant id. It failed with and without the directory id.

Answer 1

It seems there isn't an action in logic app Yammer connector which can get the list of users in a group who haven't read a message. And I checked all of the rest api in Yammer api document. Just find a rest api which can get the users in a group:
https://www.yammer.com/api/v1/users/in_group/:Group_Id.json
So I think neither yammer rest api nor logic app can not implement this requirement of get the list of users in a group who haven't read a message.
Update:
For your question about how to implement the workaround in logic app, as I don't have yammer app and account, so I can just provide some suggestions for your reference.
Since the yammer actions in logic app are very limited, so we can just use yammer Apis in logic according to HTTP action.
First we need to get access token from yammer, you can refer to this tutorial and refer to the C. App Authentication title in it. Put this post url in HTTP action in logic app and get the response body. Parse the response body and get the token property under the access_token property. Then we can use this token in the apis which we will call in the next HTTP actions.
Then, call this api in HTTP action(choose "Get" as the method) with the token which we got above to get the users who like the message, the url should be like this:
https://www.yammer.com/api/v1/users/liked_message/:Message_id.json?access_token=<<ACCESSTOKEN>>
Get the response body(and parse it in json type in array) from the api above and then call the other api in HTTP action(with access token) to get the users in one group. Also get the response body from it and parse it in json type and store in array.
After that, use two nested "For each" actions in logic app to loop the two array and compare them. Then we can get the result which you want.
Update 2: