I am unable to find any documentation on querying historical data from a device within a workflow. The only options I see for “Guage Query” are “Last received data point” and an “Aggregation” over a period of time. Even the API for “Guage Query” has the same restrictions. How can I say, retrieve the last 8 data points for a given attribute within a workflow so that I can perform my own algorithms on this data? Should I be using a different workflow block?
This leads me to my next question, which if you prefer I create a separate post for let me know! Can a single attribute store more than one key-value pair? For example, if I had an attribute called “dashboard_configuration” that held the following:
Is this possible? Or must I create a separate attribute for each?