Dynamic Dashboard Filters for Text Widget

My apologies if this has been covered already, but I have been search forum and haven't seen this topic.

I am building a text widget that performs an API call to display data from another system.  This is important as I am attempting to put all information for a facility to a single pane of glass.  

Is there a way, to pass the Filter value at the top of the dashboard to the text widget for me to use in my java script call?