Chris Webb has a new Power BI custom data connector:
I’m pleased to announce that I’ve published my first Power BI custom data connector on GitHub here:
https://github.com/cwebbbi/PowerBITextAnalytics
Basically, it acts as a wrapper for the Microsoft Cognitive Services Text Analytics API and makes it extremely easy to do language detection, sentiment analysis and to extract key phrases from text when you are loading data into Power BI.
Read the whole thing, as Chris has a great demo of it.