Building a "instagram-like" posting system

Greetings, everyone!
We are building an app loosely based on Instagram's posting system. The idea is that only the admin should be able to add a post while using the app, as regular users can only see and react to it. We have the basics by now. A few galleries here and there, but we can't figure out if there is a way for the user to create a post while in the app itself, making it available for other users. How can we do that? We are pretty new to power apps, so please excuse us if any questions are way too basic!We really appreciate any help you can provide. Thanks in advance!

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General Questions

Of course you can do this. Your question is really a design question and not so specific so it could be answered a lot of ways, many of which might not be applicable. Without sharing your apps design and how it works now it would be difficult to suggest a direction.

Generally speaking, if you want a post to be seen by other users, I believe you'll either have to do one of two things.

1. Add a button so the user can refresh the post so it shows the most recent updates. Similar to this web site. I don't see the responses to what I put here unless I refresh the screen.

2. Another way, without user intervention would to be use the timer control and force a refresh of the data every so many second, minutes, whatever you decide. If done this way the user would see the new posts without doing anything and the speed at which they would depends on how frequently you want to query the data source and cause the refresh. (Note, depending on the number of users, refreshing often might slow things down, but of course this depends on lot of factors, too many to post).

Hope this helps!