Renders and parses JSON/XML/YAML documents from and to Ruby objects. Includes plain properties, collections, nesting, coercion and more.

Type system for Ruby supporting coercions, constraints and complex types like structs, value objects, enums etc

Powerful, flexible and configurable coercion library. And nothing more.

dry-schema provides a DSL for defining schemas with keys and rules that should be applied to values. It supports coercion, input sanitization, custom types and localized error messages (with or without I18n gem). It's also used as the schema engine in dry-validation.

Myrrha provides the coercion framework which is missing to Ruby. Coercions are simply defined as a set of rules for converting values from source to target domains (in an abstract sense). As a typical and useful example, it comes with a coerce() method providing a unique entry point for converting a string to a numeric, a boolean, a date, a time, an URI, and so on.

Parameter Validation and Type Coercion for Rails

A type coercion lib works with Sorbet's static type checker and type definitions; raises an error if the coercion fails.

Type Coercion & Type Enhancement

gem to facilitate automatic coercion between jruby/java objects

Provides coercions for ActiveModel objects

setters with type coercion for set* methods on java classes using the jruby coercion interface `to_java(java_type)`

gem to facilitate automatic coercion between jruby/java objects

Easily filters type coercion in jsonapi-resources.

Generates modules that provide conventional value semantics for a given set of attributes. The behaviour is similar to an immutable `Struct` class, plus extensible, lightweight validation and coercion.

Schema-based validation and coercion for Ruby data structures, inspired by Prismatic/schema for Clojure.

Access environment variables. Also includes presence validation, type coercion and default values.

Access environment variables. Also includes presence validation, type coercion and default values.

Rack parameter validation and type coercion.

Simple and composable validation and coercion of data structures inspired by clojure specs

A small library for manipulating form-based data with validations and attributes coercion.