Redis-backed rate limiter

RedisRPC is the easiest to use RPC library in the world. (No small claim!) It has implementations in Ruby, PHP, and Python. Redis is a powerful in-memory data structure server that is useful for building fast distributed systems. Redis implements message queue functionality with its use of list data structures and the `LPOP`, `BLPOP`, and `RPUSH` commands. RedisRPC implements a lightweight RPC mechanism using Redis message queues to temporarily hold RPC request and response messages. These messages are encoded as JSON strings for portability. Many other RPC mechanisms are either programming language specific (e.g. Java RMI) or require boiler-plate code for explicit typing (e.g. Thrift). RedisRPC was designed to be extremely easy to use by eliminating boiler-plate code while also being programming language neutral. High performance was not an initial goal of RedisRPC and other RPC libraries are likely to have better performance. Instead, RedisRPC has better programmer performance; it lets you get something working immediately.

Related is a Redis-backed high performance distributed graph database.

remote-based mutexes

Ruby Socket.IO emitter implementation.

Accepts orders via http, returns payment info via http or streams updates via websockets, stores orders in a DB

This gem provides asynchronous indexing to Solr for the sunspot gem. It uses a pluggable model for the backing queue and provides support for ActiveRecord, DataMapper, and MongoDB out of the box.

Library for Redis-backed time-based rate limiting

Achievements is an abstract, Redis-backed, counter based achievements engine designed to be included in Model classes in web applications. Achievements lets you track and persist user actions with a simple bind and trigger design pattern.

Extremaly fast, flexible and intuitive access control mechanism, powered by fast key value stores like Redis.

AcornCache is a Ruby HTTP proxy caching library that is lightweight, configurable and can be easily integrated with any Rack-based web application. AcornCache allows you to improve page load times and lighten the load on your server by allowing you to implement an in-memory cache shared by every client requesting a resource on your server.

Relationships (e.g. friendships) backed by Redis

An APN server & library in which EventMachine daemons maintain a persistent connection to Apple servers and Redis acts as the glue with your Apps. See Readme for more info :)

Bulkrax is a batteries included importer for Samvera applications. It currently includes support for OAI-PMH (DC and Qualified DC) and CSV out of the box. It is also designed to be extensible, allowing you to easily add new importers in to your application or to include them with other gems. Bulkrax provides a full admin interface including creating, editing, scheduling and reviewing imports.

Wraps memcached, redis(-namespace), memcache-client, dalli and handles their weirdnesses, including forking

Celluloid::IO support for the redis-rb library

see http://cpee.org

Desiru brings DSPy's declarative programming paradigm for language models to Ruby, enabling reliable, maintainable, and portable AI programming.

Flexible configuration for Ruby/Rails applications with a variety of backends

Description of Firebase::Auth::Rails.