Rack middleware for easily adding custom headers

A rack middleware for measuring GC activity during a request.

Simple version of Google Tag Manager as a Rails Engine

Rack middleware for processing JSON requests and responses

ActiveRecord connection manager for standalone (non-Rails) Rack applications

A Well-Known URL for Changing Passwords for Rails and Rack apps

Rack middleware to convert SVGs automatically

Rack middleware to block Google's FLoC on your site

A Rack Middleware implementing the idempotency design principle using the Idempotency-Key HTTP header.

Middleware that sets the version of an app via response header.

A Rack application to access Passenger internal APIs

Rack middleware to register and authenticate against U2F devices

rails_angular_seo makes any Rails/js single-page app SEO friendly by pre-rendering content for SEO bots

The best way to write a code called as code optimization. The best ways are ruby styleguide, rails styleguide, code reusability, without code duplication, without security vulnerabilities and without N+1 queries. The above each and every best ways are have some libraries.

Rack middleware for monitoring buffer of fluent-logger.

ruby ffi for ModSecurity and rack middleware

Rack middleware for sending the HTTP ContentSecurityPolicy (W3C CSP Level 2/3) security headers in responses to prevent XSS and other browser based attacks.

Rack middleware replacing status codes with relevant pictures of dogs

Infamous Quotifier now available as Rack Middleware

An early hints Ruby / Rack middleware which just sets Link headers (i.e. for nginx http2_push_preload)