Build Status: master Gem Version MIT license

:nut_and_bolt: Utility to parse, sort and generate the "Link" HTTP Header


Add this line to your application's Gemfile:

gem 'http_headers-link'

And then execute:

$ bundle

Or install it yourself as:

$ gem install http_headers-link


You can parse the "Link" header. As per the RFCs, you should really have one (delimited) value but the current implementation links an array of values.

require 'http_headers/link'

value = '
<https://domain.tld/deploy/path/api/books/aad2a2f-84e9-4b33-a718-8095262def9a/reviews>; rel=reviews, 
<https://domain.tld/deploy/path/api/books/aad2a2f-84e9-4b33-a718-8095262def9a>; rel=self, 
<https://domain.tld/deploy/path/api/authors/78eb296b-6942-40ea-be0d-d702c0564b31>; rel=author

parsed =
# => '<https://domain.tld/deploy/path/api/books/aad2a2f-84e9-4b33-a718-8095262def9a>; rel=self' 
# => author

parsed =[
  '<https://domain.tld/deploy/path/api/books/aad2a2f-84e9-4b33-a718-8095262def9a>; rel=book, foo=bar', 
  '<https://domain.tld/deploy/path/api/books/aad2a2f-84e9-4b33-a718-8095262def9a/signatures/219472931>; rel=self'
# => bar
# => 'https://domain.tld/deploy/path/api/books/aad2a2f-84e9-4b33-a718-8095262def9a/signatures/219472931'

Each parsed entry exposes the following methods:

  • href: the parsed href to the link
  • rel: the quality parameter as float, or 1.0
  • templated?: true if there is a parameter templated that is true
  • [](parameter): accessor for the parameter; throws if it does not exist
  • to_s: encode back to an entry to be used in a Link header

The resulting collection works both as an Array and Hash by rel.


After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to


Bug reports and pull requests are welcome on GitHub at XPBytes/http_headers-link.