The mime-types library provides a library and registry for information about MIME content type definitions. It can be used to determine defined filename extensions for MIME types, or to use filename extensions to look up the likely MIME type definitions. Version 3.0 is a major release that requires Ruby 2.0 compatibility and removes deprecated functions. The columnar registry format introduced in 2.6 has been made the primary format; the registry data has been extracted from this library and put into {mime-types-data}[https://github.com/mime-types/mime-types-data]. Additionally, mime-types is now licensed exclusively under the MIT licence and there is a code of conduct in effect. There are a number of other smaller changes described in the History file.

A plain-Ruby implementation of GraphQL.

google-cloud-storage is the official library for Google Cloud Storage.

Use the GraphiQL IDE for GraphQL with Ruby on Rails. This gem includes an engine, a controller and a view for integrating GraphiQL with your app.

Check the home page for more in-depth information.

Validations for Active Storage (presence)

Library and CLI for generating a website from a GraphQL API's schema definition. With ERB templating support and a plethora of configuration options, you can customize the output to your needs. The library easily integrates with your Ruby deployment toolchain to ensure the docs for your API are up to date.

Lightweight ETL for Ruby

The minitest-spec-rails gem makes it easy to use the \ Minitest::Spec DSL within your existing Rails test suite.

Color is a Ruby library to provide basic RGB, CMYK, HSL, and other colourspace manipulation support to applications that require it. It also provides 152 named RGB colours (184 with spelling variations) that are commonly supported in HTML, SVG, and X11 applications. A technique for generating monochromatic contrasting palettes is also included. The Color library performs purely mathematical manipulation of the colours based on colour theory without reference to colour profiles (such as sRGB or Adobe RGB). For most purposes, when working with RGB and HSL colour spaces, this won't matter. Absolute colour spaces (like CIE L*a*b* and XYZ) and cannot be reliably converted to relative colour spaces (like RGB) without colour profiles. Color 1.8 adds an alpha parameter to all <tt>#css_rgba</tt> calls, fixes a bug exposed by new constant lookup semantics in Ruby 2, and ensures that <tt>Color.equivalent?</tt> can only be called on Color instances. Barring bugs introduced in this release, this (really) is the last version of color that supports Ruby 1.8, so make sure that your gem specification is set properly (to <tt>~> 1.8</tt>) if that matters for your application. This version will no longer be supported one year after the release of color 2.0.

Phone number validation

Simple Rails & AWS Lambda Integration using Rack and various utilities.

Simple Ruby rate limiting mechanism.

Adds Minitest as the default testing library in Rails

Extract as much much detail as you want from GraphQL queries, served up from your Ruby app and the `graphql` gem. Compatible with the `graphql-batch` gem, to extract batch-loaded fields resolution timings.

Check and verify in-app receipts

A stats collection and distributed tracing framework

A collection of extensions and developer tools for ViewComponent

Elastomer is a low level API client for the Elasticsearch HTTP interface.

Helps to save your eyes, when reading hardcore SQL requests in console