Gets the walking distance between two points and logs to file

getTimes.rb

# this script gets the addresses pairs from a csv file and queries the google maps api for walking directions
#
# require csv
require 'uri'
require 'csv'
require 'nokogiri'
require 'net/https'
require 'open-uri'

# initialize arrays
pairs = Array.new
urls = Array.new
data = Array.new

# api keys
# insert your google developer api key here
googleKey = ''

CSV.foreach('files/pairs.txt', { :col_sep => "\t" }) do |row|
  pairs.push(row)
end

pairs.each {
  |x|
  urls.push(x.to_s.sub('", "','&destination=').sub('["','?origin=').sub('"]',""))
}

urls.each do |x|
  url = URI.encode("https://maps.googleapis.com/maps/api/directions/xml#{x}&sensor=false&mode=walking&key=#{googleKey}")
  puts "Querying #{url} \n"
  xml = open(url).read
  doc = Nokogiri::XML(xml)
  durationTotal = doc.css("DirectionsResponse route leg duration value").last.content
  durationMinutes = durationTotal.to_i / 60
  puts "Walk duration is #{durationTotal} seconds (#{durationMinutes} minutes). \n.....\n\n"
  data.push(durationTotal.to_i)
end

puts "\n\n===== WRITING DATA =====\n\n"

File.open("gotTimes.txt", 'w') { |f| f.write(data) }

puts "Done."