toJson method
Converts the metadata to JSON
Implementation
Map<String, dynamic> toJson() {
return {
'key': key,
'createdAt': createdAt.toIso8601String(),
'lastAccessedAt': lastAccessedAt.toIso8601String(),
'expiresAt': expiresAt?.toIso8601String(),
'size': size,
'contentType': contentType,
'additionalMetadata': additionalMetadata,
};
}