In-memory driver for redis-rb, useful for development and test environments

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Simple HTTP and REST client for Ruby, inspired by microframework syntax for specifying actions.

Concurrency and threshold throttling for Sidekiq.

Heavy metal SOAP client

JRuby, an implementation of Ruby on the JVM

A Ruby client library for Apache Kafka

Sequel: The Database Toolkit for Ruby

Racecar: a simple framework for Kafka consumers in Ruby

Ruby on Rails

Time calculations using business hours.

JDBC AS400 adapter for the Sequel gem