Flutter Firestore Server side Timestamp

Question

I need to add a server side timestamp on new documents added to Firestore using a Flutter app. I see I am supposed to use FieldValue.serverTimestamp but I am no

Answer 1

Expanding on @spongyboss' answer (which works as of April 2020) by adding sample usage:

_firestore.collection('messages').add({
                      'text': messageText,
                      'sender': loggedInUser.email,
                      'created': FieldValue.serverTimestamp()
                  });

'created' will be stored as a timestamp

Sample sorting:

_firestore.collection('messages')
          .orderBy('created', descending: false)
          .snapshots()