What is the best way to retrieve a user's online friends when each user has around 100 friends on average?
According to the document, I can query x number of users with their ids. If I can query 100 users at a time, I should do this. I wasn't able to find the maximum number of users per query.
This answer seems to suggest that I can create a hidden channel for each user with the user's friends and query the channel to see who's online. What is the maximum number of members per channel?
What should I do if each user has around 1000 friends on average.