Download HRV through Web API

[checking_device]

Im trying to download HRV data through Web API, from my account for days which I had Sleep (more than 3 hrs) and HR data. I could download Sleep and HR data through Web API without a problem. But the HRV requests always returns empty data. 

What could be the reason why I'm not getting the HRV?

[GordonFitbit]

Hi @checking_device 

In the documentation, we state several conditions that need to be met for HRV data to be collected.  Those are

• the Health Metrics tile in the user's mobile application dashboard is enabled.
• the data is only collected when the user is sleeping.
• the user must have a minimum of 3 hours of sleep.
• during the main sleep period, a sleep stages log is created.

I would first check the mobile application to see if HRV data was recorded.   If HRV data is not shown in the mobile application, then that would explain why data is not coming through the Web API.

Let us know what you find out.