Class: OpenFeature::SDK::Contrib::Providers::HttpProvider

Inherits:
Object
  • Object
show all
Includes:
Common
Defined in:
lib/open_feature/sdk/contrib/providers/http_provider.rb

Overview

Read feature flags from a URL.

To use FileProvider, it can be set during the configuration of the SDK. The ‘extra_options` hash can be anything passed to `Faraday.new“

OpenFeature::SDK.configure do |config|
  config.provider = OpenFeature::SDK::Contrib::Providers::HttpProvider.new(source: http://path_to_flags, extra_options: { headers: { Auhorization: "token" }})
end

Within the FileProvider, the following methods exist

  • fetch_boolean_value - Retrieve feature flag boolean value from the file

  • fetch_string_value - Retrieve feature flag string value from the file

  • fetch_number_value - Retrieve feature flag number value from the file

  • fetch_object_value - Retrieve feature flag object value from the file

Constant Summary collapse

NAME = 
"Http Provider"

Instance Attribute Summary

Attributes included from Common

#cache_duration, #custom_parser, #deep_keys, #extra_options, #format, #metadata, #source

Instance Method Summary collapse

Methods included from Common

#expire_cache!, #fetch_boolean_value, #fetch_float_value, #fetch_number_value, #fetch_object_value, #fetch_raw_key, #fetch_string_value, #initialize, #read_all_values_with_cache

Instance Method Details

#read_and_parse_flags ⇒ Object 



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# File 'lib/open_feature/sdk/contrib/providers/http_provider.rb', line 32

def read_and_parse_flags
  options                 = extra_options.clone
  headers                 = options.fetch(:headers, {})
  uri                     = URI(source)
  base_url                = "#{uri.scheme}://#{uri.host}:#{uri.port}"
  authentication_strategy = options.delete(:authentication_strategy)
  logger                  = options.delete(:logger)

  if format == :yaml
    headers["Content-Type"] ||= "application/yaml"
  elsif format == :json
    headers["Content-Type"] ||= "application/json"
  end

  client = Faraday.new(url: base_url, **options, headers: headers) do |conn|
    conn.request(*authentication_strategy) if authentication_strategy
    conn.response(:logger, logger) if logger
  end

  res = client.get(uri.request_uri)

  return custom_parser.call(res.body) if custom_parser

  begin
    @flag_contents = if format == :yaml
                       YAML.safe_load(res.body)
                     else
                       JSON.parse(res.body)
                     end
  rescue StandardError
    @flag_contents = {}
  end

  @flag_contents
end