Class: Medici::Stock

Inherits:
Object
  • Object
show all
Defined in:
lib/medici/stock.rb

Constant Summary collapse

API_BASE_URL = 
'http://www.google.com/ig/api?'
PARSERS = 
{
  identity: lambda { |_| _ },
  to_int:   lambda { |s| s.to_i },
  to_float: lambda { |s| s.to_f },
  to_date:  lambda { |s| s.empty? ? nil : Date.parse(s) },
  to_time:  lambda { |s| s.empty? ? nil : Time.parse(s.scan(/.{2}/).join(':')) },
  to_bool:  lambda { |s| s.match(/(true|t|yes|y|1)$/i) != nil }
}
QUOTE_ATTRIBUTES = 
[
  :symbol, :pretty_symbol, :symbol_lookup_url, :company, :exchange, :exchange_timezone,
  :exchange_utc_offset, :exchange_closing, :divisor, :currency, :last, :high, :low,
  :volume, :avg_volume, :market_cap, :open, :y_close, :change, :perc_change, :delay,
  :trade_timestamp, :trade_date_utc, :trade_time_utc, :current_date_utc, :current_time_utc,
  :symbol_url, :chart_url, :disclaimer_url, :ecn_url, :isld_last, :isld_trade_date_utc,
  :isld_trade_time_utc, :brut_last, :brut_trade_date_utc, :brut_trade_time_utc, :daylight_savings
]
PARSE_MAP = 
{
  exchange_closing:    PARSERS[:to_int],
  divisor:             PARSERS[:to_int],
  last:                PARSERS[:to_float],
  high:                PARSERS[:to_float],
  low:                 PARSERS[:to_float],
  volume:              PARSERS[:to_int],
  avg_volume:          PARSERS[:to_int],
  market_cap:          PARSERS[:to_float],
  open:                PARSERS[:to_float],
  y_close:             PARSERS[:to_float],
  change:              PARSERS[:to_float],
  perc_change:         PARSERS[:to_float],
  delay:               PARSERS[:to_int],
  isld_last:           PARSERS[:to_float],
  trade_date_utc:      PARSERS[:to_date],
  trade_time_utc:      PARSERS[:to_time],
  current_date_utc:    PARSERS[:to_date],
  current_time_utc:    PARSERS[:to_time],
  isld_trade_date_utc: PARSERS[:to_date],
  isld_trade_time_utc: PARSERS[:to_time],
  daylight_savings:    PARSERS[:to_bool]
}

Class Method Summary collapse

Class Method Details

.quote(symbol) ⇒ Object 



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# File 'lib/medici/stock.rb', line 65

def self.quote(symbol)
  self.quotes([symbol]).first
end

.quotes(symbols) ⇒ Object 



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# File 'lib/medici/stock.rb', line 58

def self.quotes(symbols)
  query = symbols.map { |symbol| "stock=#{symbol}" }.join('&')
  response = Net::HTTP.get_response(URI.parse(API_BASE_URL + query))

  self.parse(response.body)
end