JObject.ToBsonDocument dropping values

Question

I'm inserting raw JSON into a collection and finding that what is stored in the database is missing the values. For example, my collection is a collection of BsonDocuments:

_products = database.GetCollection<BsonDocument>("products");

The code to insert the JSON into the collection:

public int AddProductDetails(JObject json)
{
    var doc = json.ToBsonDocument(DictionarySerializationOptions.Document);
    _products.Insert(doc);
}

The JSON that is passed in looks like this:

{
  "Id": 1,
  "Tags": [
    "book",
    "database"
  ],
  "Name": "Book Name",
  "Price": 12.12
}

But, what is persisted in the collection is just the properties with no values.

{
  "_id": {
    "$oid": "5165c7e10fdb8c09f446d720"
  },
  "Id": [],
  "Tags": [
    [],
    []
  ],
  "Name": [],
  "Price": []
}

Why are the values being dropped?

Answer 1

This does what I was expecting.

    public int AddProductDetails(JObject json)
    {
        BsonDocument doc = BsonDocument.Parse(json.ToString());
        _products.Insert(doc);
    }