Dynamically Change Data Source

Hi - parry2k, I will certainly give kudos to someone who can answer this question.  I looked at the link and am familiar with setting parameters after the data source has been determined.  I am trying to set the datasource - based on passing a token in PowerBi Service - that identifies the database that that all subsequent queries will use.   I have not found a way to modify the data source in PowerBi Server - even by passing the parameter on the URL string via ?rp:  I did read the SQL Server does not support Direct Query for parameters and I was using SQL Server as my test bed.  However I will be using Snowflake and it would be great if the solution showed a method whereby I could dynamically switch (without my users having to interact with PowerBi) the data source and maintain that workspace independent of other users coming in to the same workspace neededing to access another data source.  I do believe that it may be impossible for PowerBi to handle this as PowerBi is great for Individual companies for but not for companies which have a product that is used by hundreds of clients.  I am hoping to be able to use PowerBi as both a destination and to also use the PowerBi embedded which would be a key portion of our internal product.  And in both cases I want to handle the data source switching and connection refresh behind the scene.