using truecaller using script

truecaller.rb

require 'net/http'
require "json"


number = ARGV[0]

unless defined? number
  raise "number not given"
end

url = "https://search5.truecaller.com/v2/search?client_id=1&clientId=1&countryCode=in&locAddr=&myNumber=#{api_key}&pageId=&q=#{number}&registerId=94435922&type=4"
uri = URI(url)
data = Net::HTTP.get(uri)
data = JSON.parse(data)
puts "Name: #{data["data"][0]["name"]}"
puts "Gender: #{data["data"][0]["gender"]}"
puts "Address: #{data["data"][0]["addresses"][0]["address"]}"

sir. api_key is undefined :(