Data transfer to cloud

[Sorush]

Hi,

i am pretty brand new to the Fitbit app dev. I have a Fitbit Sense and want to transfer the collected sensor data to cloud. I was thinking to write them in the Ram and push it from there. But considering the high frequency of 100hz, i get out of memory in less than a minute. So, I guess the only option is to push it to storage and from there to AWS cloud. I still don’t get the campanion app thing.

1) It is in some sense runing on the phone right?

2) if i have access to some stuff in the app, I don’t have access to them in the companion, right?

3) the example in the fitbit, uses outbox for the campanion, is there any example for the inbox? (I think i need the inbox one on the companion since the watch is pushing the data to the phone)

thanks in advance for your help.

[JonFitbit · Accepted solution]

The companion is a second javascript environment on the phone in the Fitbit app, Your app on the Fitbit device can communicate bi-directionally with the companion. You can either use messaging, or file transfer to send data between the device and companion.

https://dev.fitbit.com/build/guides/communications/