MongoDB C# Driver: Execute Database Method through the SDK?

Question

I want to be able to execute a database method using the C# SDK (2.2.4). Take db.version() for example.

I've tried to play around with Database.RunCommand, but with no luck:

var command = new BsonDocumentCommand<BsonDocument>(new BsonDocument
{
    { "version", 1 }
});

var versionResult = Database.RunCommand(command);

Exception:

MongoDB.Driver.MongoCommandException: Command version failed: no such command: 'version', bad cmd: '{ version: 1 }'.

JohnnyHK · Accepted Answer · 2016-05-23 14:34:31Z

3

There's not always a direct mapping between the shell database methods you link to and the underlying database commands that are available via Database.RunCommand. The available commands are listed here, and to get the server version you could use the serverStatus command:

var version = db.RunCommand<dynamic>(new BsonDocument("serverStatus", 1)).version;

answered May 23, 2016 at 14:34

JohnnyHK

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KaSh · Accepted Answer · 2016-05-23 13:32:18Z

1

I can get dbstats using above approach but not version. (in both mongo shell and .net)

But then I get same error if i try to get version this way in mongo shell

db.runCommand({version:1})
{
    "ok" : 0,
    "errmsg" : "no such command: 'version', bad cmd: '{ version: 1.0 }'",
    "code" : 59
}

There seems to be different way to get version? as runCommand supports operations which are supported on Mongo shell?

edited May 23, 2016 at 13:32

answered May 23, 2016 at 9:48

KaSh

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