Class: ActiveTax::States::WA

Inherits:
Object
  • Object
show all
Defined in:
lib/active_tax/states/wa.rb

Constant Summary collapse

API_URI = 
"http://webgis.dor.wa.gov/webapi/AddressRates.aspx/text"

Class Method Summary collapse

Class Method Details

.normalize(tax_data) ⇒ Object 



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# File 'lib/active_tax/states/wa.rb', line 47

def self.normalize(tax_data)
  Struct.new(:rate,                 :location_code,           :result_code)
        .new(tax_data["Rate"].to_f, tax_data["LocationCode"], tax_data["ResultCode"])
end

.parse_result(text) ⇒ Object 



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# File 'lib/active_tax/states/wa.rb', line 37

def self.parse_result(text)
  r = {}
  items = text.split(" ")
  items.each do |item|
    k, v = item.split("=")
    r[k] = v
  end
  r
end

.rate(address = {}) ⇒ Object 



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# File 'lib/active_tax/states/wa.rb', line 32

def self.rate(address={})
  tax_data = tax(address)
  tax_data && tax_data.rate
end

.tax(address = {}) ⇒ Object

Raises:

  • (StandardError) 


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# File 'lib/active_tax/states/wa.rb', line 6

def self.tax(address={})
  raise StandardError.new("You must provide a street address to access Washington State sales tax rates. #{address.inspect}") if !address[:address]

  # http://webgis.dor.wa.gov/webapi/AddressRates.aspx/text?output=text&addr=6500+Linderson+Way&city=Tumwater&zip=98501
  params = {
    output: "text",
    addr: "#{address[:address]}",
    city: "#{address[:city]}",
    zip: "#{address[:zip]}"
  }

  require 'net/http' # Needed for HTTP requests

  uri = URI("#{API_URI}")
  uri.query = URI.encode_www_form(params)

  res = Net::HTTP.get_response(uri)

  # LocationCode=3406 Rate=0.087 ResultCode=0
  if res.is_a?(Net::HTTPSuccess)
    normalize(self.parse_result(res.body))
  else
    false
  end
end