1 files changed, 41 insertions, 0 deletions
diff --git a/lib/gitlab/phabricator_import/conduit/client.rb b/lib/gitlab/phabricator_import/conduit/client.rb
new file mode 100644
index 00000000000..4469a3f5849
--- /dev/null
+++ b/lib/gitlab/phabricator_import/conduit/client.rb
@@ -0,0 +1,41 @@
+# frozen_string_literal: true
+module Gitlab
+  module PhabricatorImport
+    module Conduit
+      class Client
+        def initialize(phabricator_url, api_token)
+          @phabricator_url = phabricator_url
+          @api_token = api_token
+        end
+
+        def get(path, params: {})
+          response = Gitlab::HTTP.get(build_url(path), body: build_params(params), headers: headers)
+          Response.parse!(response)
+        rescue *Gitlab::HTTP::HTTP_ERRORS => e
+          # Wrap all errors from the API into an API-error.
+          raise ApiError.new(e)
+        end
+
+        private
+
+        attr_reader :phabricator_url, :api_token
+
+        def headers
+          { "Accept" => 'application/json' }
+        end
+
+        def build_url(path)
+          URI.join(phabricator_url, '/api/', path).to_s
+        end
+
+        def build_params(params)
+          params = params.dup
+          params.compact!
+          params.reverse_merge!("api.token" => api_token)
+
+          CGI.unescape(params.to_query)
+        end
+      end
+    end
+  end
+end