Ruby の Net::HTTP でリクエストする - Qiita

uri = "https://registry.hub.docker.com/v2/library/ubuntu/tags/list" response = Net::HTTP.get_response(URI.parse(auth_url)) # header指定 # (Net::HTTP.get_responseの第二引数はpathと解釈されるので使えない) token = "xxxxxx" response = Net::HTTP.start(url.hostname, url.port, use_ssl: true) do |http| req = Net::HTTP::Get.new url req['Authorization'] = "Bearer XXXX" http.request req end