Amazon Web Services Signature Version 4 signing library. Generates sigv4 signature for HTTP requests.

Rack provides a minimal, modular and adaptable interface for developing web applications in Ruby. By wrapping HTTP requests and responses in the simplest way possible, it unifies and distills the API for web servers, web frameworks, and software in between (the so-called middleware) into a single method call.

HTTP/REST API client library.

HTTP::Cookie is a Ruby library to handle HTTP Cookies based on RFC 6265. It has with security, standards compliance and compatibility in mind, to behave just the same as today's major web browsers. It has builtin support for the legacy cookies.txt and the latest cookies.sqlite formats of Mozilla Firefox, and its modular API makes it easy to add support for a new backend store.

A multipart form post accessory for Net::HTTP.

Makes http fun! Also, makes consuming restful web services dead easy.

Puma is a simple, fast, multi-threaded, and highly parallel HTTP 1.1 server for Ruby/Rack applications. Puma is intended for use in both development and production environments. It's great for highly parallel Ruby implementations such as JRuby and TruffleRuby as well as as providing process worker support to support CRuby well.

EXtended http(s) CONnections

A simple HTTP and REST client for Ruby, inspired by the Sinatra microframework style of specifying actions: get, put, post, delete.

Faraday adapter for Net::HTTP

WEBrick is an HTTP server toolkit that can be configured as an HTTPS server, a proxy server, and a virtual-host server.

WebMock allows stubbing HTTP requests and setting expectations on HTTP requests.

gives something like the functionality of libwww-perl (LWP) in Ruby

Parse Accept and Accept-Language HTTP headers.

Secret User Agent of HTTP

Like a modern code version of the mythical beast with 100 serpent heads, Typhoeus runs HTTP requests in parallel while cleanly encapsulating handling logic.

Faraday adapter for Em::Http

Faraday adapter for NetHttpPersistent

raindrops is a real-time stats toolkit to show statistics for Rack HTTP servers. It is designed for preforking servers such as unicorn, but should support any Rack HTTP server on platforms supporting POSIX shared memory. It may also be used as a generic scoreboard for sharing atomic counters across multiple processes.

Faraday adapter for HTTPClient