Accessing FitBit API via R (no web scraping) - r

Question

Does anyone have a working R script to access the API? I see there is a webscraping package, but I'd prefer to use the official API if possible.
Everything I've got and research I've done to authenticate via oauth 1 or 2 seems broken using the httr package.
For oauth 2:
library(httr)
app = '<OAuth 2.0 Client ID>'
key <- '<Client (Consumer) Key>'
secret <- '<Client (Consumer) Secret>'
accessTokenURL <- 'https://api.fitbit.com/oauth2/token'
authorizeURL <- 'https://www.fitbit.com/oauth2/authorize'
fbr <- oauth_app(key,app,NULL)
fitbit <- oauth_endpoint(NULL, authorizeURL,accessTokenURL)
token <- oauth2.0_token(fitbit,fbr,scope='profile',as_header=TRUE, cache=FALSE)
When I check token$credentials I get the error message:
$errors
$errors[[1]]
$errors[[1]]$errorType
[1] "oauth"
$errors[[1]]$fieldName
[1] "n/a"
$errors[[1]]$message
[1] "No Authorization header provided in the request. Each call to Fitbit API should be OAuth signed"
$success
[1] FALSE
I have tried all the misc settings in fitbit setting up my app, both as a server and a client, and I have my callback URL correctly set up as http://localhost:1410
Any ideas?
Thanks,
Isaac
ps: I've crossposted on fitbit's forums: https://twitter.com/IsaacWyatt/status/637768649290350592 and also tweeted at Hadley Wickham for help. Retweets welcome!
Current session info:
R version 3.1.2 (2014-10-31)
Platform: x86_64-apple-darwin13.4.0 (64-bit)
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] httr_1.0.0
loaded via a namespace (and not attached):
[1] curl_0.9.3 httpuv_1.3.2 jsonlite_0.9.14 R6_2.0.1 Rcpp_0.11.4 stringr_0.6.2
[7] tools_3.1.2

Answer 1

Fitbit's API access via OAuth1.0a is deprecated from 2016-03-14, so here is working script using OAuth2.0. There was an issue with the httr package not being able to request a token using HTTP Basic authentication (required by Fitbit), but this is fixed by a new use_basic_auth argument to oauth2.0_token().
Fitbit Application Settings
OAuth 2.0 Application Type: Personal
Callback URL: http://localhost:1410 (this is the default expected by httr)
Example
# Until the version *following* httr 1.0.0 is available on CRAN, get the
# development version by uncommenting the following 2 lines
# library(devtools)
# install_github("hadley/httr")
library(httr)
# 1. Set up credentials
fitbit_endpoint <- oauth_endpoint(
request = "https://api.fitbit.com/oauth2/token",
authorize = "https://www.fitbit.com/oauth2/authorize",
access = "https://api.fitbit.com/oauth2/token")
myapp <- oauth_app(
appname = "data_access",
key = "Your OAuth 2.0 Client ID",
secret = "Your Client (Consumer) Secret")
# 2. Get OAuth token
scope <- c("sleep","activity") # See dev.fitbit.com/docs/oauth2/#scope
fitbit_token <- oauth2.0_token(fitbit_endpoint, myapp,
scope = scope, use_basic_auth = TRUE)
# 3. Make API requests
resp <- GET(url = "https://api.fitbit.com/1/user/-/sleep/date/2015-10-10.json",
config(token = fitbit_token))
content(resp)

Answer 2

So I asked for help on fitbit's forums as well, and user grahamrp posted the following using oauth 1.0:
library(httr)
token_url = 'https://api.fitbit.com/oauth/request_token'
access_url = 'https://api.fitbit.com/oauth/access_token'
auth_url = 'https://www.fitbit.com/oauth/authorize'
key <- '<Client (Consumer) Key>'
secret <- '<Client (Consumer) Secret>'
myapp = oauth_app('data_access', key, secret)
fb_ep = oauth_endpoint(token_url, auth_url, access_url)
token = oauth1.0_token(fb_ep, myapp)
gtoken = config(token = token)
resp = GET('https://api.fitbit.com/1/user/-/sleep/date/today.json', gtoken)
content(resp)
This works for me as of 8/31/2015
Link: https://community.fitbit.com/t5/Web-API/Working-R-script-Using-API-R-Mac-OS-X/m-p/931586/highlight/false#M3002
Thanks all for your attention to this!
Best,
Isaac