Azure Logic Application refreshing Power BI Semantic Model tables

Hello,

We recently migrated our models from Azure Analysis Services over to Power BI Premium and used an MS Azure Logic App to refresh a series of tables within our model on a trigger basis.

Now that we are running our models within Power BI Premium, I'm trying to find a way/method to update these tables in the same fashion.  The endpoint I use within SSMS starts with powerbi:// but the URI section does not like that syntax. 

I even used the following URL but this didn't work either as I'm receiving 'Forbidden' / 'bad request' when executed the model.  
 https://api.powerbi.com/v1.0/myorg/groups/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/datasets/xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/Refresh"}]} 

Any help or information would be greatly appreciated

Thank you