Just in case you need to fiddle with C# as “middle-man” bringing data to Grafana. I struggled a lot with \Query “datapoints” element. To save some overhead data, JSON is not having property names for metric value and unix timestamp. Dropping property names with standard C# WebAPI seriliazition was not easy. (If you know better way, shout). I Tried Tuple, Dictionary, key value…
Only solution for datapoints was creating a list in a list with doubles. Timestamp value is ok, with extra decimal (123.0).
/// <summary>
/// Data element name
/// </summary>
public String target { get; set; }
/// <summary>
/// Due the Grafana timeserie data format, without property name, have to do <list><list>
/// </summary>
public List<List<double>> datapoints { get; set; }
Standard serialization by VS2017 C# WebAPI, produces JSON what works ok. Naturally, filling the list-list is not so elegant.
I just wanted to share this, I spend some (wasted) time with this.