Class: Yafin::Fetcher

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

Class Method Summary collapse

Class Method Details

.get_historical_quotes(symbol, start_hash = {start_year: 2010, start_month: 1, start_day: 1}, end_hash = {to_year: 2012, to_month: 1, to_day: 1 }) ⇒ Object 



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# File 'lib/yafin.rb', line 32

def self.get_historical_quotes symbol, start_hash={start_year: 2010, start_month: 1, start_day: 1}, end_hash={to_year: 2012, to_month: 1, to_day: 1 }

  # http://ichart.yahoo.com/table.csv?s=GOOG&a=0&b=1&c=2000&d=0&e=31&f=2010
  # "Date,Open,High,Low,Close,Volume,Adj Close"

  resp = Net::HTTP.get_response(URI.parse("http://ichart.yahoo.com/table.csv?s=#{symbol}&a=#{start_hash[:start_month].to_i - 1}&b=#{start_hash[:start_day]}&c=#{start_hash[:start_year]}&d=#{end_hash[:to_month].to_i - 1}&e=#{end_hash[:to_day]}&f=#{end_hash[:to_year]}"))

  quotes = resp.body.split(/\n/)

  quotes.delete_at 0 #Strip headings from response

  sum = quotes.inject([]) { |sum, q| sum << HistoricalQuote.new(CSV.parse(q).flatten, symbol) }
end

.get_latest_quotes(symbols) ⇒ Object 



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# File 'lib/yafin.rb', line 6

def self.get_latest_quotes symbols
  # Enter symbols to fetch at f=
  # s = symbol
  # n = name
  # l1 = last trade (price only)
  # c1 = Change
  # p2 = Change in percent
  # x = Stock exchange
  #
  # Full list at http://www.gummy-stuff.org/Yahoo-data.htm

  ####### GOOG RESPONSE ##########################################
  #    s          n           l1       c1       p2         x
  # ["GOOG", "Google Inc.", 585.245, -0.735, "-0.13%", "NasdaqNM"]
  ####### GOOG RESPONSE ##########################################

  sym = symbols.join("+")

  resp = Net::HTTP.get_response(URI.parse("http://download.finance.yahoo.com/d/quotes.csv?s=#{sym}&f=snl1c1p2x&e=.csv"))
  quotes = resp.body.split(/\r\n/)

  quotes.inject([]) do |sum, q| 
    sum << Quote.new(CSV.parse(q).flatten) 
  end
end