This is the unofficial OmniAuth strategy for authenticating to 500px. To use it, you'll need to sign up for an OAuth2 Application ID and Secret on the 500px Developer website.
gem "omniauth-500px", :git => "git://github.com/smartcode/omniauth-500px.git"
use OmniAuth::Builder do
provider :Auth500px, ENV['500px_ID'], ENV['500px_SECRET']
end
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