Welcome to the Community!
Sorry for the lack of documentation regarding
wp-comments package. It’s a pending task we have and it will be available as soon as possible.
Here you have a video that explains how the
wp-comments package works
There’s also a CodeSandbox created to show an example implementing it. I recommend you to point it to your own WordPress site, so you can test the different settings and submit new comments (it isn’t currently allowed in test.frontity.org).
So, as you can see from the explanations in the video and the demo, there are some actions already available when adding the
wp-comments package to your project that will allow you to send (
actions.comments.submit()) comments data to your WordPress server
Hope this helps