You must specify the type of metric to get: open_connections, connections_per_second, requests_per_second or bandwidth. You can also specify more than one type by comma separation, e.g. requests_per_second,bandwidth.
Depending on the type you will get different time series data:
Metrics are available for the last 30 days only.
If you do not provide the step argument we will automatically adjust it so that 200 samples are returned.
We limit the number of samples to a maximum of 500 and will adjust the step parameter accordingly.