public static async Task <IActionResult> RunAsync(
[HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "order/{orderId}")]
Amount amount,
string orderId,
[DomainEventStream("Sales", "Order", "{orderId}")]
DomainEventStream eventStream,
ILogger log)
{
var events = await eventStream.Events();
var orderAccepted = events.GetFirst <OrderAccepted>().Where(order => order.OrderId == orderId);
if (orderAccepted == null)
{
return(new NotFoundResult());
}
var amountOfOrderChanged = new AmountOfOrderChanged(Guid.Empty.ToString())
{
OrderId = orderId,
PreviousAmount = orderAccepted.Amount,
NewAmount = amount.Value
};
await eventStream.Append(amountOfOrderChanged, orderId);
return(new OkObjectResult(new
{
prevoiusAmount = amountOfOrderChanged.PreviousAmount,
newAmount = amountOfOrderChanged.NewAmount,
message = "Amount changed"
}));
}
