JSON output use-case?

[Ziris85]

Hello all! I've been exploring integrating power metrics into something, and it seems like the JSON export fits the bill for the data I need and how to parse it. However....it doesn't look like I'm able to actually access that data until scaphandre exits. For example, in the example on this page that shows piping the output to jq, actually zero output is seen during any of the run. And if you ctrl-c to exit, then all captured data is lost/discarded and you see nothing:

[~]
root # time scaphandre --no-header json --max-top-consumers=15 | jq
^C

real    0m10.304s
user    0m0.203s
sys     0m0.421s
[~]
root # 

I can only get output from this method if I give it a specific runtime - say, -t5 or something - where scaphandre will exit on its own, then pipe the results to jq and allow me to see the results (actually I suspect it's piping the data out while it's running, but jq only parses it once it gets that final ] closing bracket that's emitted when scaphandre exits). Either way, this seems to preclude the possibility of running this as a service if I can't get parse-able data in-flight. Was the json exporter only meant to be used in a cron/scheduled job scenario? Or am I missing something that would allow me to run this continually?

Thanks for your time and consideration!