CODEWITHSUNDEEP
c#.netmongodbnosql
Hana
Hana

Reputation: 824

MongoDB get server

I try to connect to server and get database. It run properly but it VS2013 show me a warning :

Warning 1 'MongoDB.Driver.MongoClientExtensions.GetServer(MongoDB.Driver.MongoClient)' is obsolete: 'Use the new API instead.

        string connectionString = "mongodb://localhost:27017";
        MongoClientSettings settings = MongoClientSettings.FromUrl(new MongoUrl(connectionString));
        MongoClient mongoClient = new MongoClient(settings);
        var server = mongoClient.GetServer();
        var db = server.GetDatabase("bookstore");
        var bookCollection = db.GetCollection<Book>("Book");

Can someone help me solve this ? Tks for reading.

Upvotes: 9

Views: 16005

Answers (3)

Juju Shen
Juju Shen

Reputation: 76

I changed my code to following: 

var mongoUrl = new MongoUrl(connectionString);
var mongoClient = new MongoClient(mongoUrl);
MongoServer server = new MongoServer(MongoServerSettings.FromClientSettings(mongoClient.Settings));

Upvotes: 1

Thane Plummer
Thane Plummer

Reputation: 10188

The example code from @Robby works, but it doesn't return what your code is expecting; it returns Interface objects. The C# driver was updated to utilize Interface methods, as well as a number of asynchronous functions, so updating your code is probably a good idea.

The new way to get a database is -- well, you don't get a database anymore. You get an IMongoDatabase which is an interface to the database. Also, you should not work with MongoCollections anymore (from the MongoDatabase object), when you get an IMongoDatabase you will work with an IMongoCollection. Refactoring? You bet! But it's worth it.

I would also recommend putting your default database in the Mongo URL formatted connection strings. That way you can keep hard-coded constants, such as the database name, out of your code.

// Get your connection string -- use the URL format as in example below:
// name="MongoConnectionStr" connectionString="mongodb://localhost/bookstore"
var connectionString = ConfigurationManager.ConnectionStrings["MongoConnectionStr"].ConnectionString;
var mongoUrl = MongoUrl.Create(connectionString);

var client = new MongoClient(connectionString);

// Use the Mongo URL to avoid hard-coding the database name.
var db = new MongoClient(mongoUrl).GetDatabase(mongoUrl.DatabaseName);
// books below is an IMongoCollection
var books = db.GetCollection<Book>("Books");

Upvotes: 0

Robby Cornelissen
Robby Cornelissen

Reputation: 97120

The MongoServer class was deprecated in version 2.0.0 (see here). You can call GetDatabase() directly on the MongoClient object:

MongoClient mongoClient = new MongoClient(settings);
var db = mongoClient.GetDatabase("bookstore");

More documentation about connecting to the MongoDB server, retrieving a database, etc. can be found in the reference documentation.

Upvotes: 15

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