Class: Salestation::Web::Extractors::ParamExtractor

Inherits:
Object
  • Object
show all
Includes:
Deterministic
Defined in:
lib/salestation/web/extractors.rb

Class Method Summary collapse

Class Method Details

.[](filters:, rack_key:) ⇒ Object 



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# File 'lib/salestation/web/extractors.rb', line 186

def self.[](filters:, rack_key:)
  InputExtractor.new do |rack_request|
    request_hash = rack_request.env[rack_key] || {}
    input = extract(filters, request_hash)
    Result::Success(input)
  end
end

.extract(filters, request_hash) ⇒ Object 



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# File 'lib/salestation/web/extractors.rb', line 194

def self.extract(filters, request_hash)
  filters.each_with_object({}) do |filter, extracted_data|
    case filter
    when Symbol
      stringified_key = filter.to_s
      extracted_data[filter] = request_hash[stringified_key] if request_hash.key?(stringified_key)
    when Hash
      filter.each do |key, nested_filters|
        stringified_key = key.to_s
        if request_hash.key?(stringified_key)
          value = request_hash.fetch(stringified_key)
          extracted_data[key] = value.nil? ? nil : extract(nested_filters, value)
        end
      end
    end
  end
end