How to send the authenticated response while authenticating a user via SAML in Rails?

I have been trying to implement SAML in my application, wherein I want to authenticate the user and create the SAML Token(response) and redirect the user to the other website wherein session gets created. Till now I have been able to get info on init method and consume method, which will be implemented by the other website.

def init
    request = OneLogin::RubySaml::Authrequest.new
    redirect_to(request.create(saml_settings))
  end

  def consume
    response          = OneLogin::RubySaml::Response.new(params[:SAMLResponse])
    response.settings = saml_settings

    if response.is_valid? && user = current_account.users.find_by_email(response.name_id)
      authorize_success(user)
    else
      authorize_failure(user)
    end
  end

Following this Source.

I want to create the method which comes in between init and consume.