Performing an HTTP PATCH using Ruby curb

I'm trying to do an HTTP PATCH using curb. Looking through the code, there doesn't seem to be a method exposed for this. Is there any way to use curb to do a PATCH? If not, what other libraries or methods are there in Ruby to accomplish this?

Solution

With curb latest version (v0.8.1) PATCH is supported even though it is not explicitly available within the Curl::Easy interface (see lib/curl/easy.rb).

You can find a shortcut method here:

# see lib/curl.rb
module Curl
  # ...
  def self.patch(url, params={}, &block)
    http :PATCH, url, postalize(params), nil, &block
  end
  # ...
end

With it you can perform a PATCH request as follow:

curl = Curl.patch("http://www.example.com/baz", {:foo => "bar"})

Under the hood, the PATCH verb is simply passed to the easy interface as follow:

curl = Curl::Easy.new(url)

# `http` is a method implemented within the C extensions of curb
# see `ruby_curl_easy_perform_verb_str`. It allows to set the HTTP
# verb by calling `curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, verb)`
# and perform the request right after
curl.http(:PATCH)