public static string Upsert <TEntity>(this MongoCollection <TEntity> collection, Base value) where TEntity : Base
{
if (collection == null)
{
throw new ArgumentNullException(nameof(collection));
}
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
var currentData = collection.FindById(value.Id);
if (currentData == null)
{
collection.Add(value);
}
else
{
collection.UpdateById(value);
}
return(value.Id);
}