Hi. I’m running some code in R to download data from the API. Working fine a few weeks ago but now producing null return even though status code on return is 200 (i.e. okay).
Dashboard for the system is here, showing data being received: HeatpumpMonitor.org
Using the example reqest from the HeatpumpMonitor.org help page for the API, this is the query: https://heatpumpmonitor.org/timeseries/data?id=557&feeds=heatpump_elec&start=2026-08-15&end=2026-08-25&interval=60&average=1
Returns: {“”:null}
As an aside, the example on the help page has dates formatted as dd-mm-yyyy though I’ve been using yyyy-mm-dd fine up to now, and changing that aspect makes no difference.
Any advice appreciated.