get azure billing data in grafana

[aishvaryaps]

I understood fakeJson project which is a data source for SimpleJSON
How will this work in a real scenario?
How to configure Azure billing API in SimpleJson? Directly in Grafana SimpleJson Datasource plugin ? or a custom application to fetch azure billing API response first and than pass that custom application server IP port as Simple JSON datasource to Grafana ? How will SimpleJson convert json to time series data to show graphs in Grafana ?