Create a new file at layouts/_default/rss.xml. You can define your rss.xml as per your liking.

By default rss.xml only displays the summary of your articles. But I want to display the whole content. This helps me in syncing my posts with my dev.to site.

You can find the Hugo’s default rss.xml at Hugo’s Github repo. Let’s copy the contents to our rss.xml file that we just created.

Then change the description to show content instead of summary as follows.

-<description>{{ .Summary | transform.XMLEscape | safeHTML }}</description>
+<description>{{ .Content | transform.XMLEscape | safeHTML }}</description>

Before the changes there were only 504 characters in the characters.

curl localhost:1313/index.xml | grep "description" | head -n 3 | tail -n 1 | wc -c

: 504

After the changes the number of characters increased significantly as the whole blog is being rendered in the description.

curl localhost:1313/index.xml | grep "description" | head -n 3 | tail -n 1 | wc -c

: 14582