URI parse parameters

bench.rb

require 'benchmark/ips'
require 'rack/utils'
require 'uri'
require 'cgi'

uri = URI.parse "https://reedsy.com/?foo=1&bar=2"

# [2.5.3] 0:(main) > Rack::Utils.parse_nested_query uri.query
# => {
#     "foo" => "1",
#     "bar" => "2"
# }
# [2.5.3] 0:(main) > URI.decode_www_form(uri.query.to_s).to_h
# => {
#     "foo" => "1",
#     "bar" => "2"
# }
# [2.5.3] 0:(main) > CGI.parse(uri.query.to_s).transform_values(&:first)
# => {
#     "foo" => "1",
#     "bar" => "2"
# }

Benchmark.ips do |x|
 x.report("Rack") { Rack::Utils.parse_nested_query uri.query }
 x.report("URI") { URI.decode_www_form(uri.query.to_s).to_h }
 x.report("CGI") { CGI.parse(uri.query.to_s).transform_values(&:first) }
end

# Warming up --------------------------------------
#                 Rack     8.840k i/100ms
#                  URI    20.736k i/100ms
#                  CGI    16.833k i/100ms
# Calculating -------------------------------------
#                 Rack     87.986k (± 3.1%) i/s -    442.000k in   5.028284s
#                  URI    217.241k (± 3.6%) i/s -      1.099M in   5.065639s
#                  CGI    175.202k (± 3.2%) i/s -    875.316k in   5.001075s