Rack Middleware for inserting Lettering.js style syntax into a response body

Remember locale in rack layer

Rack middleware to log requests in logstash json event format. Like the logstasher gem, but for rack apps.

A Rack middleware that provides an endpoint to start the New Relic agent.

Rack::NonCache is a rack middleware that disables HTTP browser caching.

Delegates OAuth authentication to other authentication server

Use your Rack application on AWS Lambda.

A rack middleware to cache requests in static files, a la Rails' page_cache

A page in your app for pre-built queries

Validate rack responses against schema named in the Link header

Rack Middleware to inject Segment javascript into your Rack app.

Rack middleware for API Version-specific Component Service redirection.

A rack middleware for exposing session state to tests.

Silence logs per request from Rack

Allows for setting the maximum request time before it get logged also provides a custom log to data relevant to the slow request and can even provide a different log for each slow request for easy debugging.

Rack middlewares to make building and serving a Single Page App from a Ruby Rack app easy.

Schema design for NoSQL applications

You can be a Time Traveler.

Mark Tor users using rack, for filtering / throttling / etc

Use Hevents (https://github.com/yarmand/hevents) to create JS init function for Rails controllers and views. Provide helper to setup handlers in your Rails code