Following TDD practice, designed with few useful patterns, styled with rubocop style guide, documented with yard convention, lines of code analysis, 100% tests coverage and properly error handled rubygem project could be very useful to assess one's knowledge in build rubygems.

Simulator for Moneris Hosted Tokenization

Currency converter

A gem that calculates the exchange rate using available rates from TransferWise. Compatible with the money gem.

A Ruby Gem implementation of Bitcoin HD Wallets (Extended)

A Ruby Gem implementation of Bitcoin HD Wallets (forked to remove ffi)

An aggregation DSL for use with mongo ruby driver

Simple mongodb based cache for things like Sinatra and Rails which is implemented much like Memcached in hopes that in some cases they're interchangeable. It's based off 'diskcached'.

A mongoDB based messaging queue that supports multiple queues

Rails-compatible cache store for MongoDB using Mongoid.

A simple Sinatra based web front-end that can be used for experimenting and learning MongoDB. The MongoFe gem can also be used for simple administrative tasks, managing collections and document basic operations such as: create new documents, delete existing ones, search by various criteria and do...

This gem is meant to be use with mongoid-rpsec, altought it works by itself. Syntax is the same as shoulda-callback-matchers.

If you need a simple shopping cart handler for monogid project use this one :-)

Create and maintain aggregate metadata with Mongoid

Rails and Mongoid simplest helpers possible to directly upload file to S3 without hitting the server. Support concurrent uploads, progress bars, and more.

Heavily inspired by DDH's ActiveRecord::Enum, this little library is there to help you cut down the cruft in your models and make the world a happier place at the same time.

Simple appointment scheduling for rails

Mongoid index creation and removal the nice and easy way :)

Storing IP in MongoDB done right - as integers

Loads nested Mongoid documents using a JSON serialization