Ruby code to get distance between two places using Google Maps Distance API where places are specified by their latitude and longitude..

CalculateDistanceUsingGoogleMapsAPI.rb

require "net/http"
require "json"

def find_distance(lat1,long1,lat2,long2)
	uri = URI("http://maps.googleapis.com/maps/api/distancematrix/json?origins=#{lat1},#{long1}&destinations=#{lat2},#{long2}&mode=driving&sensor=false")
	response = Net::HTTP.get_response(uri)

	distancematrix = JSON.parse(response.body)

	#puts distancematrix
	puts "Origin Address: #{distancematrix["origin_addresses"]}"
	puts "Destination Address: #{distancematrix["destination_addresses"]}"

	rows=distancematrix["rows"]

	rows.each do |row|
		elements = row["elements"]
			puts elements.class
			elements.each do |element|
				puts "Distance(km): #{element["distance"]["text"]}"
				puts "Distance(value): #{element["distance"]["value"]}"
				puts "Duration(text): #{element["duration"]["text"]}"
				puts "Duration(value): #{element["duration"]["value"]}"
			end
	end
end

find_distance(27.17,78.04,27.19,78.03)