The official API wrapper for Buffer covers user & profile management and adding, removing & editing updates, and more... See the full API Documentation for everything the API can do.
gem install buffer
Check out the Github repo for full documentation of the wrapper.
OmniAuth is the best way to do OAuth in Ruby, so we created a strategy to make it so easy a two-year-old could hack it together.
gem install omniauth-buffer2
Check out the Github repo for full documentation of the Strategy.