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Contents
# frozen_string_literal: true
module Karafka
module Routing
module Features
class DeadLetterQueue < Base
# Rules around dead letter queue settings
class Contract < Contracts::Base
configure do |config|
config.error_messages = YAML.safe_load(
File.read(
File.join(Karafka.gem_root, 'config', 'errors.yml')
)
).fetch('en').fetch('validations').fetch('topic')
end
nested :dead_letter_queue do
required(:active) { |val| [true, false].include?(val) }
required(:max_retries) { |val| val.is_a?(Integer) && val >= 0 }
end
# Validate topic name only if dlq is active
virtual do |data, errors|
next unless errors.empty?
dead_letter_queue = data[:dead_letter_queue]
next unless dead_letter_queue[:active]
topic = dead_letter_queue[:topic]
# When topic is set to false, it means we just want to skip dispatch on DLQ
next if topic == false
next if topic.is_a?(String) && Contracts::TOPIC_REGEXP.match?(topic)
[[%i[dead_letter_queue topic], :format]]
end
end
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems