faultline exception and error notifier for Rack application

A rack middleware for measuring GC activity during a request.

A rack endpoint for adding subscribers to an email list

Gem enabling the management of Rackspace Cloud Server instances.

Rack app exposing the Brute agent over HTTP with JSON and SSE streaming endpoints. Deploy with Falcon.

This gem provides a simple and flexible rate limiting mechanism for Rack applications. It allows you to control the rate at which requests are processed, preventing abuse and ensuring fair usage.

Zbatery is an HTTP server for Rack applications on systems that either do not support fork(), or have no memory (nor need) to run the master/worker model. It is based on Rainbows! (which is based on Unicorn (which is based on Mongrel)) and inherits parts of each. Zbatery supports your choice of ...

Tool that checks a Ruby application server for Rack compliancy

Rails aware Rack middleware for Entra ID authentication.

Rack middleware for Shibboleth SP authentication

Rack logger support ActiveSupport LogSubscriber

Rack middleware for profiling

Rack middleware to set the secure flag on your rack app's cookies.

Adds a trailing new line to all Rack responses

It provide maintenance page to your rack application. Also see https://github.com/borot/rack_maintenance.

Bayeux (COMET or long-polling) protocol server as a Sinatra application. Light weight and high scalability are achieved by using the asynchronous Rack extensions added to Thin by async_sinatra.

Rack middleware that measures HTTP request queue duration from upstream headers and reports it to Yabeda as a histogram metric.

Sam Saffron's memory profiler made up as a rack middleware that writes reports to tmp folder

Simple rack middleware for access filtering by IP or User Agent string

A simple rack for log information from environment.