Simple-MongoDB – Alpha version is out

Ok, it’s finally out. My driver agains MongoDB can be downloaded from: http://code.google.com/p/simple-mongodb/

I will try to write more about how to use it, in the next couple of days, but for now I will just double post the info that’s posted on the Google code site.

A C# implementation of a driver that can be used to communicate with MongoDB. The focus lies in keeping it “dynamic” by using anonymous types and JSON.

Using a well known JSON/BSON-serializer (http://james.newtonking.com/projects/json-net.aspx).

Roadmap

API

The API comes in two flavours: one where you directly consume commandobjects (insert, update, delete, query);and one where this is abstracted away, where you instead use a session with hierarchies.

Some simple examples of how the API currently looks like (it’s an alpha release so the API will probably have some changes).

Connection

To work with Simple-MongoDb you need to establish a connection to a MongoDb-server. This is done by creating an instance of SimoConnection (simo = Simple-MongoDb). The SimoConnection needs to know: address and port of the server. This is wrapped in SimoConnectionInfo, which could be populated manually or via connectionstring-name:

var cn = new SimoConnection(new SimoConnectionInfo(Constants.ConnectionStringName));

<connectionStrings>
  <add name="SimpleMongoDbTests" connectionString="host:localhost;port:27017"/>
</connectionStrings>

Below I have wrapped this in a factory-method CreateConnection().

Commands

var document = new { Name = "Daniel", Age = 29 };

using (var cn = CreateConnection())
{
    var insertCommand = new InsertDocumentsCommand(cn)
    {
        FullCollectionName = "TestDb.Persons",
        Documents = new[] { document }
    };
    insertCommand.Execute();
}

Session

var document = new { Name = "Daniel", Age = 29 };

using (var session = new SimoSession(CreateConnection()))
{
    session["TestDb"]["Persons"].Insert(document);
}

Querying could be done in a numerous ways(not yet regexs, it’s on the roadmap).

using (var session = new SimoSession(CreateConnection()))
{
    var persons = session[DbName][PersonsCollectionName]
        .Find<Person>(new WhereOperator("this.Age > 20 && this.Age < 65"));
}

//Daniel