Fitbit API Test

The documentation for the Fitbit API is available at http://python-fitbit.readthedocs.org/.Let's write a simple example to get today's physical activity:

1. The first step is import the fitbit module:

       import fitbit

2. We have to initialize the fitbit client using the client key, client secret, access_token, and refresh_token earlier in this section:

       fbit_client = fitbit.Fitbit(CONSUMER_KEY, 
                                   CONSUMER_SECRET, 
                                   access_token=ACCESS_TOKEN, 
                                       refresh_token=REFRESH_TOKEN)

3. According to the Fitbit API documentation, the current day's physical activity can be retrieved using the intraday_time_series() method.
4. The required arguments to retrieve the physical activity include the resource that needs to be retrieved; that is, steps, detail_level, that is, the smallest time interval for which the given information needs to be retrieved, start times and the end times.

5. The start time is 12:00 a.m. of the current day, and the end time is the current time. We will be making use of the datetime module to get the current time. There is a function named strftime that gives us the current time in the hour:minute format.

Make sure that your Raspberry Pi Zero's OS time is correctly configured with the local time zone settings.

       now = datetime.datetime.now() 
       end_time = now.strftime("%H:%M") 
       response = fbit_client.intraday_time_series('activities/steps', 
         detail_level='15min', 
         start_time="00:00", 
         end_time=end_time)

6. The fitbit client returns a dictionary containing the current day's physical activity and intraday activity in 15-minute intervals:

       print(response['activities-steps'][0]['value'])

7. This example is available for download along with this chapter as fitbit_client.py. If you have a Fitbit tracker, register an application and test this example for yourself.