Live Streaming Salesforce Data into Power BI Dashboards

I'm exploring methods to do this. I'm trying to do the push data method: https://powerbi.microsoft.com/en-us/documentation/powerbi-developer-walkthrough-push-data/
Though, I'm not sure how difficult this really is, especially with Salesforce. Do we have to write our own JSON script?

I also have an Azure Data Factory for Salesforce data, and I'm not sure if Stream Analytics can be incorporated with that (or used on its own for Salesforce data).

Thanks.

Nathan