I have uploaded app already in a playstore beta version and for now i have just got a mistake that when i fetch a video url from the app the app is only fetching a first url video and always it is fetching that video at first so can we make it to fetch randomly from firebase any one has any idea ? please give me a soloution for that.

I have the following code that I partly found and adapted to my use, and it is working:

I am struggling to find the answer to my question, I was reading through the docs, but couldn’t find any reference related to this.

I can’t manage roles correctly for Firebase Realtime Database, I would like the data entered by the admin to be able to be read by everyone and the data entered by the user user to be seen only by the user who has auth.uid equal to idUser, I did lots of different tests but the only result I managed to obtain is either everyone sees everything or everyone sees nothing.

What’s going on here?

Can I query the Realtime Database using the startAt filter together with serverTimestamp()?

my goal is to fetch multiple documents in one fetch.

I wanted to create a structure like this:

I have a post table, and a user table. Summary is that a post is made by a user, I save the key in the user and create the post in the post table.