Promenade makes it simple to instrument Ruby apps for prometheus scraping

Google Protocol Buffers serialization and RPC implementation for Ruby.

puma-rails overrides the Rack::Handler.default method to return Rack::Handler::Puma which will cause rack (and rails) to use puma by default.

Smuggle TCP connections through HTTP

Qiwi payments solution

Log HTTP request queue time to statsd when the HTTP_X_REQUEST_START is set.

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

Rack middleware for simplified handling of Accept header. Accept header parser.

A server health check for active_record.

Rack response-time statistics aggregator middleware

rack-asset-compiler is a Rack middleware that provides a generic interface for compiling static files, such as Sass or CoffeeScript files. rack-asset-compiler does not use any local file storage and makes use of caching headers such as "Cache-Control" and "If-Modified-Since". This makes it ideal for running on read-only filesystem systems such as Heroku.

An extension for Rack::Attack that supports responding to throttled requests with Recaptcha tags

The rack-kerberos library provides a Rack middleware interface for authenticating users against a Kerberos server.

This library allows Kerberos/GSSAPI authentication using either Basic method or Negotiate (i.e. authentication without the need of user/password combo).

A Rack middleware that expels undesirable browsers out of your website. This project lovingly extends the rack-noie6 gem.

Embeds the Clicky tracking code at the end of your HTML

Set X-Forwarded-For header to original client IP when using Cloudflare in proxy mode

Rack middleware that provides authentication based on CloudFlare JSON Web Tokens.

Shared configuration for cooperative middleware.

An implementation of the Rack protocol/specification.