Unit of Work Usage

unit-of-work-usage.cs

public class CustomerService : ICustomerService
{
    private readonly SampleApiDb database;
    public CustomerService(SampleApiDb database)
    {
        this.database = database;
    }
    public async Task<string> CreateStripeCustomer(
        CreateCustomerRequestViewModel request)
    {
        database.CustomerRepository.Create(new Our.Customer()
        {
            UserId = Guid.Parse("GUID")
        });
        database.CustomerRepository.Get(c => c.UserId == Guid.Parse("GUID"));
        database.CustomerRepository.Update(Guid.Parse("GUID"), existingCustomer);
        database.CustomerRepository.Delete(Guid.Parse("GUID"));
        await database.SaveAsync();
        database.CustomerRepository.Query(
            "Select * from Customers where Id=@customerId",
            reader => reader.MapToSingle<Customer>(),
            new[] { new SqlParameter("customerId", "GUID") });
        database.CustomerRepository.Procedure<Customer>(
            "dbo.GetCustomer",
            new[] { new SqlParameter("customerId", Guid.Parse("GUID")) });
    }
}