class Grape::Validations::ContractScope

Public Class Methods

new(api, contract = nil, &block) click to toggle source

Declare the contract to be used for the endpoint’s parameters. @param api [API] the API endpoint to modify. @param contract the contract or schema to be used for validation. Optional. @yield a block yielding a new schema class. Optional.

# File lib/grape/validations/contract_scope.rb, line 10
def initialize(api, contract = nil, &block)
  # When block is passed, the first arg is either schema or nil.
  contract = Dry::Schema.Params(parent: contract, &block) if block

  if contract.respond_to?(:schema)
    # It's a Dry::Validation::Contract, then.
    contract = contract.new
    key_map = contract.schema.key_map
  else
    # Dry::Schema::Processor, hopefully.
    key_map = contract.key_map
  end

  api.namespace_stackable(:contract_key_map, key_map)

  validator_options = {
    validator_class: Validator,
    opts: { schema: contract }
  }

  api.namespace_stackable(:validations, validator_options)
end