Note that you will need to replace the key and secret with the ones you obtain from the Fitbit developer platform! We will use this as input for our code below, extracting step count and heart rate data for every date in the fitbit_dates vector. I've created a vector of dates (called fitbit_dates) that correspond to the period of time that I have had the Fitbit (ending at the time this blog post was prepared - December 2018). When you get the token, a separate window from your internet browser will open and you will have to specify which data you want to access via the API (see the guides above for more details). This package comes with commands to easily obtain a token to access the Fitbit API, and to easily compose queries to request data. The workhorse package for most of this exercise is the excellent fitbitr package. # make list of dates: these are the dates thatįitbit_dates <- seq(ymd(''),ymd(''), by = '1 day') Token <- fitbitr::oauth_token(language='en_US') # choose folder to which we will save the data we extract # devtools::install_github('teramonagi/fitbitr') # (you'll need to install the devtools package if you haven't already) # make sure you install the fitbit r package (from github) # make sure to choose personal usage for accessįITBIT_SECRET <- 'xxxxxxyyyyyyyyxxxxxxxxxyyyyyyxxx'įITBIT_CALLBACK <- ' # load the packages we will use # obtain the key and secret for your fitbit account We will use this vector of dates in our calls to the API. I also specify the directory to which I will save the data I’ve downloaded, and create a vector containing the dates for which I’ve had my Fitbit. Below, I specify the Fitbit key and secret I obtained in the above procedure. Next, we will make sure we have everything loaded in our R environment. step or heart rate data at the minute-level). Make sure to select “Personal” for the OAuth 2.0 Application Type, or you won’t be able to access intra-day time series information (e.g. I won’t go into the details here, but you can check out these two very clear and detailed descriptions of how to go through this process – the guides make it very easy. The first thing we need to do is create a developer account with Fitbit, in order to get a key and secret to access the API.

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