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Versions: 7
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Contents
module Economy
module Rates
class Yahoo < Base
private
def call
ids = Economy.currencies.map(&:iso_code).permutation(2).map(&:join).join(',')
uri = URI('https://query.yahooapis.com/v1/public/yql')
uri.query = URI.encode_www_form(
q: "select * from yahoo.finance.xchange where pair in ('#{ids}')",
env: 'store://datatables.org/alltableswithkeys',
format: 'json'
)
response = Net::HTTP.get_response(uri)
if response.code == '200'
body = JSON.parse(response.body.downcase, symbolize_names: true)
results = body[:query][:results][:rate]
if results.is_a?(Hash)
results = [results]
end
rates = []
results.each do |result|
if result[:name] != 'n/a'
from, to = result[:name].split('/').map(&:upcase)
rate = BigDecimal(result[:rate])
rates << [from, to, rate]
end
end
rates
else
[]
end
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems