Class: GoldSilver::API

Inherits:
Object
  • Object
show all
Defined in:
lib/gold_silver_api/api.rb

Class Method Summary collapse

Class Method Details

.fetch(metal, currency, date = nil) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/gold_silver_api/api.rb', line 8

def fetch metal, currency, date=nil
  raise ArgumentError, "missing metal argument" if metal.nil?
  raise ArgumentError, "invalid metal argument" unless GSAPI_METALS.include?(metal)
  raise ArgumentError, "missing currency argument" if currency.nil?
  raise ArgumentError, "invalid currency argument" unless GSAPI_CURRENCIES.include?(currency)
  
  GoldSilver.logger.debug "Attempting to fetch #{metal} in #{currency}."
  
  uri = nil
  if date
    uri = URI.parse("https://www.goldapi.io/api/#{metal&.upcase}/#{currency&.upcase}/#{date&.upcase}")
  else
    uri = URI.parse("https://www.goldapi.io/api/#{metal&.upcase}/#{currency&.upcase}")
  end #/if-else
  
  response = nil
  result = nil
  Net::HTTP.start(uri.host, uri.port, use_ssl: GoldSilver.config.use_ssl) do |http|
    req = Net::HTTP::Get.new(uri)
    req['Content-Type'] = 'application/json'
    req['x-access-token'] = GoldSilver.config.access_token
    response = http.request(req)
    result = response&.body
  end #/block

  {
    success: response.instance_of?(Net::HTTPOK),
    response: response,
    result: JSON.parse(result)
  }
# rescue
#   {
#     success: false,
#     response: nil
#   }
end