Intraday Heart Rate Sync

[SaraBat]

Hello,

I am making an android app for a uni project and I need the heart rate details from fitbit.

Ideally I would need real/time heart rate data but I understand this is not possible (is this still the case?), so I'll need to work with the sync every 15-20min.

My question is, does the intraday data also sync every time the fitbit synchronises with the app, or is it only available once a day? Can I access the infraday data collected up to the moment when the last synchronization happened? And if so, how do I do it? (Should I write some specific information on the start-time and end-time fileds in the API request, or is just writing "today" in the date field enough?)

Thanks in advance for the help!

[AndrewFitbit]

Hey @SaraBat, the data is available as soon as it syncs. 

---

SaraBat wrote:

Can I access the infraday data collected up to the moment when the last synchronization happened? And if so, how do I do it?

---

If you're just referring to data for the current day, then yes, "today" will give you data up until last sync. 

Example:

https://api.fitbit.com/1/user/-/activities/heart/date/today/1d/15min.json

"activities-heart-intraday": {
    "dataset": [
      {
        "time": "00:00:00",
        "value": 65
      },
      {
        "time": "00:15:00",
        "value": 85
      },
      {
        "time": "00:30:00",
        "value": 91
      },
      {
        [...]
      },
      {
        "time": "09:30:00",
        "value": 151
      },
      {
        "time": "09:45:00",
        "value": 114
      }
    ],
    "datasetInterval": 15,
    "datasetType": "minute"
  }

If no data was synced for "today", then "dataset" will be empty.