Serve static files from S3 via Rack

Rack::Environmental indicates which environment your web application is running in (staging, test, etc.).

Rescue Handler for Rack

Rack parameter validation and type coercion.

Rack backend for ActiveResource for testing RESTful Rack APIs

A rack middleware to output access log in ltsv format

Rack Middleware for logging raw incoming/outgoing HTTP traffic

Rack session store for Sequel

Rack middleware for serving RPC endpoints.

Security related HTTP headers for Rack applications

Rack middleware that injects a message into HTML responses.

Idempotent Rack middleware

Analyze timing and process info from your Rack stack.

A simple router for Rack apps

Rack middleware for handling large file uploads. Integrates nicely with the Nginx upload module: http://www.grid.net.ru/nginx/upload.en.html

Rack middleware for idempotency guarantees in mutating endpoints.

Rack jwt auth middleware

Super-fast router class for Rack application, derived from Keight.rb. See for details.

Rack::GeoIPCountry uses the geoip gem and the GeoIP database to lookup the country of a request by its IP address

A tiny piece of Rack middleware to set the default Accept: header