snapshot returns always empty data in StreamBuilder flutter

Question

So, I'm facing this problem: the 'snapshot' doesn't get any data from Firestore in StreamBuilder in Flutter.$

Here is the code:

StreamBuilder<Driver>(
  initialData: null,
  stream: DatabaseServices(uid: driver.uid).driverData,
  builder: (streamContext, snapshot) {
    print(driver.uid);
    if (snapshot.hasData) {
      Driver currentDriver = snapshot.data;
      print(currentDriver.fullName);
      print(currentDriver.email);
    } else {
      print('no data');
    }
  }
)

Note: stream: DatabaseServices(uid: driver.uid).driverData -> driver here works fine on top of the whole code and gets the driver data such as uid.

And this code always returns 'no data'.

The weird thing here is that I'm using the same code (with another kind of user -> Client) in another screen, and it works normally, and it gets the data properly.

And in Firestore, I have 2 collections, Driver and Clients, almost the same attributes.

It even has a SubCollection for both collections and it called 'Notification', and I'm using a StreamBuilder to show the notifications for both Client and Driver and it works normally.

Answer 1

Problem solved, the problem was in some attribute that I called it with the wrong name that used in the other collection (Client), I forgot to change it.