serverTimestamp constant

FieldValue const serverTimestamp

Returns a sentinel used with set(), create() or update() to include a server-generated timestamp in the written data.

final documentRef = firestore.doc('col/doc');

documentRef.set({
  'time': Firestore.FieldValue.serverTimestamp()
}).then(() {
  return documentRef.get();
}).then((doc) {
  print('Server time set to ${doc.get('time')}');
});

Implementation

static const FieldValue serverTimestamp =
    _ServerTimestampTransform.serverTimestampSentinel;