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Unhandled Exception: type 'Null' is not a subtype of type 'int'
Hello I upgraded my instance from 1.6.2 to latest 1.7.4, doing migration. All seems to work fine but when I use the latest version of the appwrite plugin on my Flutter app (17.1.0) and trying to list documents I got "Unhandled Exception: type 'Null' is not a subtype of type 'int'".
I debugged and found that my instance do not return the field $sequence which is required in the appwrite library:
TypeScript
factory Document.fromMap(Map<String, dynamic> map) {
return Document(
$id: map['\$id'].toString(),
$sequence: map['\$sequence'],
$collectionId: map['\$collectionId'].toString(),
$databaseId: map['\$databaseId'].toString(),
$createdAt: map['\$createdAt'].toString(),
$updatedAt: map['\$updatedAt'].toString(),
$permissions: List.from(map['\$permissions'] ?? []),
data: map,
);
}
How to fix that?
TL;DR
Upgraded instance to 1.7.4, Flutter app using appwrite plugin 17.1.0, error: "Unhandled Exception: type 'Null' is not a subtype of type 'int'." Issue due to missing field `$sequence`. Fix: Add a null check for `$sequence` in the `Document.fromMap` factory.