fitbitr - Explore your Fitbit data in R

R-CMD-check CRAN Version Lifecycle: experimental

fitbitr makes it easy to interface with Fitbit data in R.


You can install the CRAN version of fitbitr with:


Or you can install the latest development version from Github:

# install.packages("devtools")


There are a few steps you’ll need to do before you can start pulling your Fitbit data:

  1. Make an app here.

  2. Fill in the fields as you like (see image below for guidance).

  3. You’ll be redirected to a page with your credentials. Make sure you keep the Client ID, Client Secret, and Redirect URL. You’ll need them to finish the setup process. You can always refer back to the apps page to find them again.

  4. Generate a token:

    .fitbitr_token <- generate_oauth_token(
      oauth_app_name = <YOUR-APP-NAME>,
      client_id = <YOUR-CLIENT-ID>,
      client_secret = <YOUR-CLIENT-SECRET>
      callback = <YOUR-REDIRECT-URL>
  5. And that’s it! You now have your Fitbit API credentials set up. fitbitr tracks them behind the scenes for you, so all that you need to do at the start of each R session is generate_token(). On a session restart, generate_token() will try to laod a token from your .httr-oauth if it exists.

Using fitbitr

Once you have a token, using fitbitr is very straightforward:

> get_steps("2020-05-21", "2020-05-28")
# A tibble: 8 × 2
  date       steps
  <date>     <dbl>
1 2020-05-21  3734
2 2020-05-22  5107
3 2020-05-23  5640
4 2020-05-24  6595
5 2020-05-25  8466
6 2020-05-26  5833
7 2020-05-27  8616
8 2020-05-28  3161

fitbitr tries to return a useful, tidy object back to you from the API.

Known Issues / Futute Work

Given the structure of the Fitbit API, it doesn’t appear to be currently possible to use fitbitr outside of an interactive session. And furthermore, it doesn’t help that Fitbit refresh tokens only last 8 hours, at which point you’d need another interactive session to generate a new one.

For these reasons, it is not advised to try to use fitbitr non-interactively, such as in a Shiny app server, a CI/CD process, a background job, etc.