MongoDB atomic update via 'merge' document

Question

I know that I can atomically update an existing Mongo document by setting specific fields. The following code will do it:

var update = MongoDB.Driver.Builders.U         


        

Answer 1

Found the answer:

//var snippetJSON= '{title:"Tin Machine II",brandnewfield:"this gets added nicely"}';
    MongoDB.Bson.BsonDocument updateDoc = MongoDB.Bson.Serialization.BsonSerializer.Deserialize<BsonDocument>(snippetJSON);
var update = new UpdateDocument { { "$set", updateDoc } };

Easy when you know how!