Override PublishCore

Hello,

I am trying to override PublishCore in order to call all notification handlers and aggregate any exceptions that may occur. The problem I am running into is it seems the notification handler is executed during the enumeration.

protected override async Task PublishCore(IEnumerable<Task> allHandlers)
{
    foreach (var handler in allHandlers)  // <-- calls notification handler here
    {
        await handler.ConfigureAwait(false);
    }
}

could you please let me know how you suggest I handle this?

Thanks!

[remcoros]

        public Task<IEnumerable<Vehicle>> Handle(GetVehiclesBySiteId request, CancellationToken cancellationToken)
        {
            // everything here is executed in line with whoever called this method.
           // ...
            return _repository.GetVehiclesBySiteId(request.SiteId);
        }

See the comment above, and see this: https://sharplab.io/#v2:CYLg1APgAgDABFAjAbgLAChYMQVjejKAZgQCY4BhOAbwznoRKgDY4ApAVwGcAXFgCgCUNOgzFQA7AmYA6CgHsAtgAcANgFMe64C3xiAvhiPpxTABzS4AQS4BPAHYBjAcNomxDAPSeEUlnKU1TW1dUXpDdH0gA===

By adding ‘async’ the compiler wraps the method in a state machine, doing some of it’s own exception handling.

It all comes down to the order of instructions, and who calls what.

[remcoros]

I believe you, hard to argue with what you observe 😃. Haven’t worked with Azure functions myself, so that would be interesting to see indeed. ,It’s always you, it’s never the compiler’’ is what I’ve always been told 😃