Is it possible to force the JsonWriterSettings to output the ObjectID as
{ "id" : "522100a417b86c8254fd4a06" }
instead of
{ "_id" : { "$oid" : "522100a417b86c8254fd4a06" }
I know I could write my own parser, but for the sake of code maintenance, I would like to find away to possibly override the Mongo JsonWriterSettings.
If this is possible, what classes/Interfaces should I override?
If you're OK with using MongoDB C# attributes or the Mapper, then you can do something like this:
public class Order {
[BsonId]
[BsonRepresentation(BsonType.ObjectId)]
public string Id { get; set; }
}
That way, you can refer to the type as a string normally (including serialization), but when MongoDB serializes it, etc., it's internally treated as an ObjectId. Here's using the class map technique:
BsonClassMap.RegisterClassMap<Order>(cm => {
cm.AutoMap();
cm.SetIdMember(cm.GetMemberMap(c => c.Id);
cm.GetMemberMap(c => c.Id)
.SetRepresentation(BsonType.ObjectId);
});
If you use JSON.NET instead it's easy to add a JsonConverter that converts ObjectId values to strings and vice-versa.
In ASP.NET WebAPI you can then add this to the default set of converters at Formatters.JsonFormatter.SerializerSettings.Converters
I am using MongoDB.Driver with version 2.15.1 and for me is working this simple solution:
public class Order {
[BsonRepresentation(BsonType.ObjectId)]
public string Id { get; set; }
}
You do not have to specify attribute [BsonId] if the property name is "Id" The driver uses naming conventions.
