Class: ExchangerYahoo1

Inherits:
ExchangerBase show all
Defined in:
lib/mrpin/core/currency_exchanger/yahoo/exchanger_yahoo1.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ExchangerYahoo1

Returns a new instance of ExchangerYahoo1.



6
7
8
9
10
 
# File 'lib/mrpin/core/currency_exchanger/yahoo/exchanger_yahoo1.rb', line 6

def initialize
  super

  @exchanger_api = ManagerRemoteHttp.new(url: 'http://query.yahooapis.com')
end

Instance Method Details

#get_rate(from_currency, to_currency) ⇒ Object 



14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
# File 'lib/mrpin/core/currency_exchanger/yahoo/exchanger_yahoo1.rb', line 14

def get_rate(from_currency, to_currency)
  params =
      {
          q:        "select * from yahoo.finance.xchange where pair in ('#{from_currency}#{to_currency}')",
          format:   'json',
          env:      'store://datatables.org/alltableswithkeys',
          callback: nil
      }

  response = @exchanger_api.get('v1/public/yql', params)

  assert(response[:status] == EResponseType::ERT_OK, response)

  response_exchanger = JSON.parse response[:response], {symbolize_names: true}

  rate_string = response_exchanger.assert_property!(:query).assert_property!(:results).assert_property!(:rate).assert_property!(:Rate)

  rate_string.to_f
end