I'm developing a watchOS meditation app in which the user starts one continuous meditation session. During that session, I'd like the app to obtain a 1-minute HRV measurement immediately after the session begins (to establish a baseline), and then automatically obtain another 1-minute HRV measurement approximately 6 minutes after the session started, without requiring the user to manually start a second measurement or leave the app.
My understanding is that HealthKit allows apps to read HRV samples after they have been recorded, but I haven't found a way to request that the watch generate a new HRV measurement.
Is there any public API that allows a third-party watchOS app to initiate an HRV measurement similar to the Mindfulness/Breathe app, or otherwise request the Apple Watch to collect a new HRV sample at predetermined times during an ongoing session?
Thanks in advance, Hern