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

Rack adapter for sending events to logstash server, from the chosen statuses code, can send event to file/udp/tcp servers.

LTSV logger for Rack applications implemented as middleware

Rack middleware for managing HTML5 manifest file by yaml and make it easy to implement in Rails.

Rack middleware that populates the params variable with the contents of matrix parameters in a URL

Sam Saffron's memory profiler made up as a rack middleware that writes reports to tmp folder

rack-metrics is a performance monitoring tool.

Authenticates signed server requests from a MicroService and resolves the MicroService.

rack middleware to response any image file via google search

A rack based middleware that does fun/silly metrics reporting.

Dumps SQL queries with their positions in the source code

rack-minitest = rack-test + Minitest

A Rack Middleware to help to fix mixed contents issues

any request in the rack layer, returns any json response(Content-Type: application/json) and http status.

Rack middleware to process Web Monetization API states

A rack application working as an adapter for Mongoid

A rack application working as an adapter for Mongoid

Send monitoring info to OpenTSDB

A rack endpoint for adding subscribers to an email list

RackMotion provides a Rack-like interface for middleware that can intercept and alter HTTP requests and responses in RubyMotion. It's built on top of NSURLProtocol, which makes it, to borrow a line from Mattt Thompson, an Apple-sanctioned man-in-the-middle attack.