Handle " Bad state field does not exist within the DocumentSnapshotPlatform in Flutter firestore

Question

I have added into the app a new document/field which check when user will be again online. Of course these new field will be created by the user when they back online but where I check this exception I am trying to put an expeception for example:

widget.snapshot['lastAccess'] == null ? Container():The RightWidget

the problem is that this field is not null, it doesnt exist until the user login again into the app and this field will be created, but until this time I need to place an exception if the field doesnt exist. I tried also widget.snapshot['lastAccess'] ?? 'Not available ', but of course this method also check if the field is null... I need to catch the exception if the field doesnt exist...

the question is that I need to add a new document into collection as null in the Firestore but my question is if it is possible to handle Document which doesnt exist instead of null — Emanuel Developer, Apr 09 '21 at 14:19
I have answered the same issue here, check it out: https://stackoverflow.com/a/71028766/10131684 — Ali Murtaza, Feb 08 '22 at 04:58

score 0 · Answer 1 · answered Apr 09 '21 at 14:33

0

Check containsKey method like this

if(snapshot.data().containsKey("lastAccess")){

}
else{

}

answered Apr 09 '21 at 14:33

Sal Man

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Handle " Bad state field does not exist within the DocumentSnapshotPlatform in Flutter firestore

1 Answers1