How to merge comments from social networks?

Question

Social media

It is necessary to make the same comments as here .
Those. a comment sent via Facebook is located on the same tab as a comment sent via VKontakte, and so on. At the same time, you can respond to comments from other social networks.
How can this be implemented? I would also like to hear your pros and cons.
PS I have the following idea ... Depending on which social network the comment was sent through, the necessary information is loaded via api (link to the page, avatar, maybe something else ..) and simply added to the database, from which information is then taken for building the comment itself on the page. Perhaps someone has comments on this approach or another idea.