rails.rb

HoptoadNotifier.configure do |config|
  config.environment = RAILS_ENV
  config.application_root = RAILS_ROOT
end

class HoptoadNotifier::Rails
  def self.notify(request)
    # Do your thang
  end
end

rails_usage.rb

class ApplicationController < ActionController::Base
  protected
    def rescue_action_in_public(error)
      HoptoadNotifier::Rails.notify(request, error)
      render :text => "Something went boom"
    end
end

sinatra.rb

HoptoadNotifier.configure do |config|
  config.environment = Sinatra::Application.environment
  config.application_root = Sinatra::Application.root
end

class HoptoadNotifier::Sinatra
  def self.notify(request)
    error = request.env['sinatra.error']
    HoptoadNotifier.notify(
      :error_class   => error.class.name,
      :error_message => "#{error.class.name}: #{error.message}",
      :backtrace     => error.backtrace,
      :environment   => request.env,
      :request       => { :params => request.params, :url => request.url }
    )
  end
end

sinatra_usage.rb

# An extension of http://gist.github.com/72622
#
# If HoptoadNotifier was refactored so each framework had it's own glue lib it
# may look something like this:

require 'rubygems'
 
gem 'sinatra', '~> 0.9.0'
require 'sinatra'
 
gem 'thoughtbot-hoptoad_notifier', '42'
require 'hoptoad_notifier/sinatra'
 
HoptoadNotifier.api_key = 'YOUR_API_KEY'
 
get '/' do
  raise "Eeep!"
end
 
error do
  HoptoadNotifier::Sinatra.notify(request)
  "Something went boom"
end