deletecustomer.cs

public async Task DeleteCustomer(Customer customer)
{
    try
    {
      await this._cosmosDbContext.CustomerContainer.DeleteItemAsync<Customer>(customer.customerId, new PartitionKey(customer.customerId) );
    }
    catch (CosmosException ex)
    {
      Console.WriteLine("Exception occured in DeleteCustomer: Message body is {0}.\n", ex.Message);
      throw;
     }
}