Creating a Cosmos Db database using Code

CosmosDriver.cs

private readonly CosmosClient _cosmosClient;
private CosmosDatabase _database;
private CosmosContainer _container;

private readonly string _databaseId = "thetaDb";
private readonly string _containerId = "CustomerContainer";

public CosmosDriver()
{
    _cosmosClient = CosmosDbConnection.Instance;
}

public async Task CreateDatabaseAsync()
{
	  try
	  {
		this._database = await this._cosmosClient.CreateDatabaseIfNotExistsAsync(_databaseId);
	  }
	  catch (Exception e)
	  {
		Console.WriteLine(e);
		throw;
	  }
}