en_oauth.rb

get '/list' do
  begin
    # Get notebooks
    session[:notebooks] = notebooks.map(&:name)
    # Get username
    session[:username] = en_user.username
    # Get total note count
    session[:total_notes] = total_note_count
    erb :index
  rescue => e
    @last_error = "Error listing notebooks: #{e.message}"
    erb :error
  end
end