Blood Contracts

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Blood Contracts is a simple and agile Ruby data validation tool inspired by refinement types and functional approach.

  • Powerful. Algebraic Data Type guarantees that gem is enough to implement any kind of complex data validation, while Functional Approach gives you full control over validation outcomes.
  • Simple. You could write your first Refinment Type as simple as single Ruby method in single class.
  • Brings transparency. Comes with instrumentation tools, so now you will exactly know how often each type matches in your production.
  • Rubyish. DSL is inspired by Ruby Struct. If you love Ruby way you’d like the BloodContracts types.
  • Born in production. Created on basis of eBaymag project, used as a tool to control and monitor data inside API communication.
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Martians at a glance
16
years in business

A product development consultancy that works with startups and established businesses, while also creating open source-based products and services