Rack middleware for serving static gzipped assets generated by the Rails asset pipeline

Rack middleware for creating HTTP endpoints for files stored in MongoDB's GridFS

A client wrapper around a Rack app or HTTP

A Rack endpoint that generates cache manifests and other useful HTML5 offline utilities that are useful on the server-side. Rack::Offline also provides a conventional Rails endpoint (Rails::Offline) that configures Rack::Offline using expected Rails settings

Rack::TestApp is another testing helper library for Rack application. IMO it is more intuitive than Rack::Test.

If you are creating Rack middleware that changes the HTML response, use Rack::Mason to get a head start. Rack::Mason takes care of the boilerplate Rack glue so that you can focus on simply changing the HTML. Notethis is a fork from https://github.com/techiferous/rack-mason (c) techiferous@gmail.com

This Rack middleware records incoming Rack request and responses in a VCR compatible format.

capybara-envjs is a Capybara driver for the envjs gem. It is similar to Capybara's rack-test driver in that it runs tests against your rack application directly but fully supports javascript in your application.

JSON Schema based Rack middlewares

Flexible rate limits for your Rack apps

Rack::Debug adds a middlerware interface to ruby-debug http://github.com/github/rack-debug

Rack OpenTracing middleware

Rack::Debug is a middleware that provides a simple interface to ruby-debug. Helps debug apps running in Passenger.

This is Rack middleware that makes your app compliant with the 'EU ePrivacy Directive'

Rack::Brotli enables Google's Brotli compression on HTTP responses

Rack::State is middleware that securely stores and manages object state. Applications use the Manager API to set, get, and delete state of any object that requires persistence in a stateless environment. Rack::State is similar to Rack::Session, but provides state management for multiple objects...

Rack::GridServe is a Rack middleware for serving files stored in MongoDB GridFS. It is meant as a simple replacement for Rack::GridFS until it is ready for Mongo driver version 2.0 and above.

Rack::Synctime is a simple Rack middleware that returns sync time (time when request started) in HTTP headers (#{Rack::Synctime::DEFAULT_HEADER_NAME} by default). Header name can be changed also sync time can be modified using time offset i.e. -5 seconds (server time in seconds decreased by 5) et...

Rack::EnvInspector is a Rack middleware for debugging that allows you to dump the Rack environment by appending a query parameter to the URL.

Rack::Sanitizer is a Rack middleware which cleans up invalid UTF8 characters in request URI and headers.