This is a plugin for exceptional and Sinatra. I am using it manually via the Sinatra error block, and it doesn't really work automatically yet. As such, it's probably not very useful for most people.

But it's a good starting point for Sinatra support, so if you'd like to hack on this, let me know and I'll add you as a contributor!

The one feature I've added (for reason of personal requirement) is params filtering, so you can block out passwords from your exception reports.


Add this line to your application's Gemfile:

gem 'sinatra-exceptional', :require => 'sinatra/exceptional'

And then execute:

$ bundle

Or install it yourself as:

$ gem install sinatra-exceptional


require 'sinatra'
require 'sinatra/exceptional'

configure do

set :exceptional_options, {
  key: 'YOUR APP KEY',
  params_filter: /password/i

# Test with curl -d "password=sex"
post '/' do
  raise StandardError, 'testing!'

error do
  report_exception # This sends the exception to Exceptional, but does not halt.

Running the Tests

$ bundle install
$ bundle exec rake


  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Added some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request


  • Automatic exceptions
  • Tests need to use webmock
  • Tests for password filter (can't really do it without the mock)