Plugin that conditionally raises response errors

gistfile1.rb

class ConditionalRaisePlugin < Seahorse::Client::Plugin

  class Handler < Seahorse::Client::Handler
    
    def call(context)
      response = @handler.call(context)
      conditional_raise(response.error, context.config.errors_to_ignore)
      response
    end

    private

    def conditional_raise(error, ignored)
      raise error unless ignored.any? { |error_class| error_class === error }
    end

  end

  option(:errors_to_ignore, [])

  handler(Handler, step: :validate, priority: 95)

end

# replace default plugin
Aws::DynamoDB::Client.remove_plugin(Seahorse::Client::Plugins::RaiseResponseErrors)
Aws::DynamoDB::Client.add_plugin(ConditionalRaisePlugin)

# create a white-list of error types that should not be raised
ddb = Aws::DynamoDB::Client.new(errors_to_ignore: [
  Aws::DynamoDB::Errors::ResourceNotFoundException,
])

resp = ddb.describe_table(table_name: 'no-such-table')
resp.error
#=> #<Aws::DynamoDB::Errors::ResourceNotFoundException: Requested resource not found: Table: no-such-table not found>