Class: Kilden::Decide Private

Inherits:
Object
  • Object
show all
Defined in:
lib/kilden/client.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

One-attempt /decide lookups (spec §8.2: a flag answer that arrives after a retry budget is useless — return the default instead).

Instance Method Summary collapse

Constructor Details

#initialize(write_key:, host:, timeout:, transport:, logger:) ⇒ Decide

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of Decide.



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# File 'lib/kilden/client.rb', line 347

def initialize(write_key:, host:, timeout:, transport:, logger:)
  @write_key = write_key
  @url = "#{host.chomp('/')}/decide"
  @transport = transport || Transport::NetHttp.new(timeout: timeout)
  @logger = logger
end

Instance Method Details

#flags_for(distinct_id, person_properties) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/kilden/client.rb', line 354

def flags_for(distinct_id, person_properties)
  request = { "write_key" => @write_key, "distinct_id" => distinct_id }
  request["person_properties"] = person_properties unless person_properties.nil?

  response = @transport.post(@url, JSON.generate(request),
                             "Content-Type" => "application/json",
                             "User-Agent" => "kilden-ruby/#{VERSION}")
  unless response.status == 200
    reason = response.network_error? ? response.error&.class : "HTTP #{response.status}"
    @logger.warn("kilden: /decide failed (#{reason}); using defaults")
    return nil
  end

  flags = JSON.parse(response.body)["flags"]
  flags.is_a?(Hash) ? flags : nil
rescue JSON::ParserError
  @logger.warn("kilden: /decide returned a malformed body; using defaults")
  nil
end