Ruby shell script to test get/post form data to web apis

posttool.rb

#!/usr/bin/env ruby
 
require "uri"
require "net/http"
require "optparse"

options = {}

optparse = OptionParser.new do|opts|
   
  # Set a banner, displayed at the top
   # of the help screen.
   opts.banner = "Usage: posttool -m GET/POST -u URL -q KEY,VAL..."
 
   # Define the options, and what they do
   options[:url] = ""
   options[:query] = []
      
   opts.on( '-u', '--url url', 'URL' ) do |url|
     options[:url] = url
   end
   
   opts.on( '-q', '--query field,val..', Array, 'Form fields and values: fieldname, value... Ex: id,1,name,John Doe,Age,25, etc...' ) do |query|
     options[:query] = query
   end
   
   opts.on('-m', '--mode get/post', 'GET/POST') do |mode|
     options[:mode] = mode
   end

   # This displays the help screen, all programs are
   # assumed to have this option.
   opts.on( '-h', '--help', 'Display this screen' ) do
     puts opts
     exit
   end
   
end  

optparse.parse!

# Convert the query list into hash values
hashquery = {}
options[:query].each.with_index do |k, v|
  hashquery[k] = options[:query][v + 1] if v % 2 == 0
end

# post form data if mode is POST - otherwise, just use GET
if options[:mode].upcase == "POST"
  uri = URI(options[:url])
  res = Net::HTTP.post_form(uri, hashquery)
  puts res.body
else
  puts "get request"
  uri = URI(options[:url])
  uri.query = URI.encode_www_form(hashquery)
  puts Net::HTTP.get(uri)
end