function Comment({comment, commentSource}) {
const currentUserID = comment.viewer.id;
const environment = RelayEnvironment.forUser(currentUserID);
const commentID = nullthrows(comment.id);
useEffect(() => {
const subscription = SubscriptionCounter.subscribeOnce(
`StoreSubscription_${commentID}`,
() =>
StoreSubscription.subscribe(
environment,
{
comment_id: commentID,
},
currentUserID,
commentSource
)
);
return () => subscription.dispose();
}, [commentID, commentSource, currentUserID, environment]);
}