require "addressable/uri"
uri = Addressable::URI.parse("https://example.com/path/to/resource/")
uri.scheme
#=> "http"
uri.host
#=> "example.com"
uri.path
#=> "/path/to/resource/"
uri = Addressable::URI.parse("https://www.詹姆斯.com/")
uri.normalize
#=> #<Addressable::URI:0xc9a4c8 URI:https://www.xn--8ws00zhy3a.com/>

require "addressable/template"
template = Addressable::Template.new("https://example.com/{?query*}")
template.expand({
  "query" => {
    'foo' => 'bar',
    'color' => 'red'
  }
})
#=> #<Addressable::URI:0xc9d95c URI:https://example.com/?foo=bar&color=red>
template = Addressable::Template.new("https://example.com/{?one,two,three}")
template.partial_expand({"one" => "1", "three" => 3}).pattern
#=> "https://example.com/?one=1{&two}&three=3"
template = Addressable::Template.new(
  "https://{host}{/segments*}/{?one,two,bogus}{#fragment}"
)
uri = Addressable::URI.parse(
  "https://example.com/a/b/c/?one=1&two=2#foo"
)
template.extract(uri)
#=>
# {
#   "host" => "example.com",
#   "segments" => ["a", "b", "c"],
#   "one" => "1",
#   "two" => "2",
#   "fragment" => "foo"
# }

spec.add_dependency 'addressable', '~> 2.7'

spec.add_dependency 'addressable', '~> 2.3', '>= 2.3.7'