fitbit-sleep.rb

require 'date'
require 'json'
require 'fitgem'

consumer_key = 'xxx'
consumer_secret = 'xxx'
oauth_file = 'oauth.json'

if File.exist?(oauth_file)
  oauth = JSON.parse(File.read(oauth_file), symbolize_names: true)
  client = Fitgem::Client.new({
    consumer_key: consumer_key,
    consumer_secret: consumer_secret,
    token: oauth[:token],
    secret: oauth[:secret]
  })
else
  client = Fitgem::Client.new({
    consumer_key: consumer_key,
    consumer_secret: consumer_secret
  })
  request_token = client.authentication_request_token()
  print "URL: #{request_token.authorize_url}\n"
  print "PIN: "
  verifier = gets.chomp
  access_token = request_token.get_access_token(oauth_verifier: verifier)
  client.reconnect(access_token.token, access_token.secret)
  File.open(oauth_file, 'wb') do |f|
    f << { token: access_token.token, secret: access_token.secret }.to_json
  end
end

p client.sleep_on_date(Date.today)