Govuk notify API query to retrieve mail sent and failed

govuk_notify_queries.rb

require 'notifications/client'

def client
  @client ||= Notifications::Client.new(ENV['SETTINGS__GOVUK_NOTIFY__API_KEY'])
end

def notifications args
  client.get_notifications(args)
end

def emails_sent
  notifications({ template_type: 'email' }).collection
end

def emails_failed
  notifications({ template_type: 'email', status: 'failed' }).collection
end

puts failed: emails_failed.count
 #37 is number of pre-live mails sent using this key
puts sent: emails_sent.count - 37