I have a test application running at test.rsscloud.io on ports 80 and 9876.
The following code works:
curl --location --request POST 'https://brokenriverbooks.com/?rsscloud=notify' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'domain=test.rsscloud.io' \
--data-urlencode 'port=80' \
--data-urlencode 'path=/feedupdated-s8759' \
--data-urlencode 'registerProcedure=' \
--data-urlencode 'protocol=http-post' \
--data-urlencode 'url1=https://brokenriverbooks.com/feed/'
However if you change the port to 9876 it fails. For some reason the rssCloud plugin seems unable to hit ports that are not 80.
@josephscott - Yesterday, per your suggestion, I created a new WordPress site (https://scott2.andysylvester.com/) and disabled all plugins, then installed version 0.5.0 of the RSS Cloud plugin, and was able to successfully see posts appear within several seconds on FeedLand, which would indicate that the plugin is working. I also checked the feed in the browser and using curl, and both contained the correct content. This morning, I decided to do additional tests using my test app and Dave Winer's test app. Both apps were able to receive the notification from new posts. However, posts did not appear in FeedLand. I also checked the feed in the browser and using curl, and both contained the correct content.
When I looked at the output of my app, which uses the readFeed function within the NPM reallySimple package to get the feed, the first title in the feed it read was for test post 8, although I had created a new test post. This behavior continued even though I made several additional posts. In the posts, I captured info on each state of testing. To me, if FeedLand was not seeing any changes in the feed, I can totally understand that it would not display anything from the feed. As I have commented before, this seems like a caching problem, but I am not sure where to look.
I do not fully understand what is happening here, but this behavior has now occurred on two different WordPress sites using the latest RSS Cloud plugin. I would like to work this out, because WordPress is the major creator of rssCloud-enabled feeds, and I want to use rssCloud and WordPress in a new project. @josephscott, I am willing to keep posting to this thread, or in some other forum to work this out, I appreciate the feedback you have given me, and want to run this problem down if I can.