Hey,

I'm running into this problem where our custom shipping calculator doesn't kick in after a deployment. It only starts to calculate shipping after restarting the site in IIS after every deployment (I also clear the cache, delete the temp folders and recycle the app pool). After doing this it works fine, but it's not an ideal solution

The calculator is registered as mentioned in the docs:

[RuntimeLevel(MinLevel = RuntimeLevel.Run)]
public class ServiceComposer : IUserComposer
{
    public void Compose(Composition composition)
    {
        composition.RegisterUnique<IShippingCalculator, MyShippingCalculator>();
    }
}

And the implementation is fairly simple. We just call our shipping service:

public class MyShippingCalculator : ShippingCalculator
{
    private readonly ILogger _logger;
    private readonly ShippingService _shippingService;

    public MyShippingCalculator(ITaxService taxService, IStoreService storeService, ILogger logger, ShippingService shippingService) : base(taxService, storeService)
    {
        _logger = logger;
        _shippingService = shippingService;
    }

    public override Price CalculateShippingMethodPrice(ShippingMethodReadOnly shippingMethod, Guid currencyId, Guid countryId, Guid? regionId, TaxRate taxRate, ShippingCalculatorContext context)
    {
        var shippingPrice = _shippingService.GetShippingPrice(context.Order, currencyId);

        if (shippingPrice == null)
        {
            shippingPrice = base.CalculateShippingMethodPrice(shippingMethod, currencyId, countryId, regionId, taxRate, context);
        }

        return shippingPrice;
    }

    public override TaxRate CalculateShippingMethodTaxRate(ShippingMethodReadOnly shippingMethod, TaxSource taxSource, TaxRate fallbackTaxRate, ShippingCalculatorContext context)
    {
        return base.CalculateShippingMethodTaxRate(shippingMethod, taxSource, fallbackTaxRate, context);
    }
}

I put some logging in and found just doesn't hit CalculateShippingMethodPrice() and instead just falls back to the default shipping price

This is using Vendr 1.2.10

Any ideas what it could be?

Cheers, Mark V