validart

Proof-of-concept for publishing a server's ActiveModel validations. Also an opportunity to play around with Rails 4 & Jbuilder.

Instructions

• Install gems: bundle
• Run the server: rails s
• Simulate a client reading the server validations: ruby client_sim.rb

Example output

Command: curl http://localhost:3000/external_validations.json

Output:

[{"name":"User","validators":[{"class":"ActiveRecord::Validations::PresenceValidator","attributes":["name"],"options":{}},{"class":"ActiveModel::Validations::FormatValidator","attributes":["phone_number"],"options":{"with":"(?-mix:\\A\\(\\d{3}\\) \\d{3}-\\d{4}\\z)","allow_blank":true}},{"class":"ActiveModel::Validations::InclusionValidator","attributes":["status"],"options":{"in":["archived"],"allow_blank":true}}]},{"name":"ValidationlessObject","validators":[]}]