---
layout: default
navsection: api
+navmenu: Concepts
title: Resources
navorder: 4
---
h2. Attributes of resources
table(table table-bordered table-condensed).
-|*Attribute name*|*Value*|*Description*|*Example*|
+|*Attribute*|*Type*|*Description*|*Example*|
|uuid|string|universally unique object identifier|@mk2qn-4zz18-w3anr2hk2wgfpuo@|
+|href|string|a URL that can be used to address this resource||
|kind|string|@arvados#{resource_type}@|@arvados#collection@|
|etag|string|The ETag[1] of the resource|@1xlmizzjq7wro3dlb2dirf505@|
|self_link|string|||
h2. Attributes of resource lists
table(table table-bordered table-condensed).
-|*Attribute name*|*Value*|*Description*|*Example*|
+|*Attribute*|*Type*|*Description*|*Example*|
|kind|string|@arvados#{resource_type}_list@|@arvados#project_list@|
|etag|string|The ETag[1] of the resource list|@cd3o1wi9sf934saajykawrz2e@|
|self_link|string|||