Thanks for the reply Andy! I just realized I posted in the wrong forum, I meant to post this in the Streaming API forum–but it might not be relevant.
From the streaming API we are getting the user ID and the tweet ID and then we just use those to generate the link.
It doesn’t seem to be an issue if you use the username instead of the ID, but everything I read indicated it was probably best to use the ID since users frequently change their usernames.
Thanks,
Cam