I'm using SyndicationFeed
to generate an Atom feed.
I seem to have everything working except when I use W3C Feed Validation Service to validate my feed, I get the following warning.
This feed is valid, but interoperability with the widest range of feed readers could be improved by implementing the following recommendations. line 2, column 0: Missing atom:link with rel="self"
It's easy enough to add an attribute to a tag that I created, but how can I get SyndicationFeed
to add it? I'm not seeing a setting for this.
Here is the first part of my feed.
<?xml version="1.0" encoding="UTF-8"?>
<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en-us">
<title type="text">Insider Articles</title>
<subtitle type="text">Insider Articles data feed.</subtitle>
<id>http://www.insiderarticles.com/Syndication/Atom</id>
<rights type="text">Copyright (c) 2016 Insider Articles. All Rights Reserved.</rights>
<updated>2016-10-02T12:47:21-07:00</updated>
<logo>http://www.insiderarticles.com/Content/Images/rss.jpg</logo>
<link rel="alternate" href="http://www.insiderarticles.com/" />
<entry>
<!-- Etc... -->
Here's how I'm constructing my feed (minus the feed items).
// Construct feed
SyndicationFeed feed = new SyndicationFeed(
Properties.Settings.Default.ApplicationName,
Properties.Settings.Default.FeedSummary,
new Uri(Properties.Settings.Default.ApplicationDomainRoot),
string.Format("{0}/Syndication/Atom", Properties.Settings.Default.ApplicationDomainRoot),
DateTime.Now);
feed.Language = "en-us";
feed.Copyright = new TextSyndicationContent(Properties.Settings.Default.ApplicationCopyright);
feed.ImageUrl = new Uri(string.Format("{0}/Content/Images/rss.jpg", uriRoot));
feed.Items = items;
Although my code above adds an alternate link (rel="alternate"
), the validator also wants a link to the original feed as well (rel="self"
).
So adding the following code fixed the issue.
string feedUrl = string.Format("{0}/Syndication/Atom", UrlBuilder.GetUriRoot(uri));
// Add feed (self) URL
var link = new SyndicationLink(new Uri(feedUrl));
link.RelationshipType = "self";
feed.Links.Add(link);