Ajax with set Interval OR SignalR

Question

I have a scenario, where i need check if my Database has received new orders (restaurant).

Signalr seems to be the best option.

But I can wait 2-3 minutes to update with AJAX.

Given this long range I can expect, and thinking of a large scale, would not ajax be better?

Answer 1

Although this looks like a duplicate of: Is SignalR a suitable substitute for jQuery Ajax (or similar), I'd say you should use SignalR, based on the chosen answer to the similar question.

SignalR is perfect for notifying users real-time. You can call client functions from the server and vice versa. This makes it very dynamic.

I think it would be more heavier to call an endpoint every 2 minutes – even if there was no order placed – then only perform an action when an order has been placed.

The capacity for concurrent connections depends on the performance of the server.