[babs474]

Sure, reddit has (or had at one point) a json api to get all new comments as they stream in. Unedditreddit simply saved those comments. Later when the user indicates they are interested in a certain comment id, I can simply serve it up out of my database.

Whether the same approach would work today depends on how well the reddit new comment api is holding up. Even a year ago, when unedditreddit was working, new comments was a decent sized firehose and the approach seemed to work well.

[ceol]

Thanks for your answer! I forgot about the /comments page for each subreddit (including r/all). How often did you poll the API for comments? It seems like there are so many comments that you'd have to do it every couple of seconds.