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Krzysztof (Christopher) Wawer @wafcio about.me/kwawer

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Our API • Roda • ROM (Ruby Object Mapper) • JSON API standard (http://jsonapi.org)

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{ price: 1000 } => { price: '1000' } /\d+/

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dry-validation Piotr Solnica Andy Holland http://dry-rb.org/gems/dry-validation/

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Community • 17 contributors • very active Gitter channel https://gitter.im/dry-rb/chat • v0.10.1 • used in hanami-validations, reform

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Strange and awesome things

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Predicate Logic • and ( & ) • or ( | ) Dry::Validation.Schema do required(:age) { int? & gt?(18) } end

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Optional Keys and Values { age: 30 } { name: nil, age: 30 }

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Nested data { name: "John", address: { street: "Main Street" }, emails: ["[email protected]"] }

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Shared schema Dry::Validation.Schema do required(:name).filled required(:address).schema(AddressSchema) end

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dry-validation http://dry-rb.org/gems/dry-validation/

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Thanks @wafcio about.me/kwawer