Messaging system based on the reactor pattern. You can publish messages to a queue and then a demultiplexer runs an event loop which pops items from the queue and hands it over to a dispatcher. The dispatcher hands over the message to the appropriate handler. You can choose your own queueing service.

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Drape adds an object-oriented layer of presentation logic to your Rails apps.

dsu is ruby gem that enables anyone practicing Agile methodology to record, keep track of, and manage their daily standup (DSU) activities. * dsu uses no network connections whatsoever. * dsu stores all of its data locally, in .json files. * dsu is a simple (but powerful) command-line tool for users who love to work within the terminal. * dsu versioning follows the semantic versioning standard (MAJOR.MINOR.PATCH).

It looks like Active Record and quacks like Active Record, but it can't do persistence or querying, it's Duck Record! Actually it's extract from Active Record. Used for creating virtual models like ActiveType or ModelAttribute does.

Lightweight DynamoDB interface gem designed as a drop-in replacement for ActiveRecord. Built & maintained by the team at yroo.com.

Enables consistent responses for API calls

A API wrapper for Taiwan e-invoice services.

Small library to check if EIP doc has valid front matter

Find your records with Elasticsearch

Validation for Dutch bank account numbers, Citizen Service Numbers (BSN) and Payment reference

Email Verification that’s astonishingly easy and low-cost. See https://emailable.com for details.

API client for Email Octopus

ActiveModel validator for emojis, powered by the unicode-emoji gem, to ensure your Models do not contain characters you may not be able to handle

Encore provides serializers and persisters to build JSON API-compliant Web services with Ruby on Rails.

Entasis provides a few useful methods for building a basic class. Handy for models without a database.

EnumeratedField is a library that provides some nice methods when a string column is used like an enumeration, meaning there is a list of allowable values for the string column.

Enum machine is a library for defining enums and setting state machines for attributes in ActiveRecord models and plain Ruby classes.

Elasticity provides a higher level abstraction on top of [elasticsearch-ruby](https://github.com/elasticsearch/elasticsearch-ruby) gem

Make your Ruby objects searchable with Elasticsearch.