I'm working on a Node.js project that involves using Socket.IO for a restaurant order management system. The goal is for the restaurant's dashboard to update in real-time whenever a customer places an order. I'm considering two different approaches: 1) sending the complete order data over Socket.IO, or 2) sending just the order ID over Socket.IO and calling an API to get the details afterward. Has anyone implemented something similar? What would you recommend, especially when it comes to scaling this setup?
5 Answers
How much scaling are we actually talking about for a restaurant? Are we expecting a lot of concurrent connections? I doubt scalability will be a major issue; if it becomes one, I'd look into server-sent events instead of using full WebSockets.
You might not even need to roll your own solution here. I'd recommend checking out GraphQL and its subscriptions for real-time data updates, similar to what you can do with Firebase. It could save you a lot of effort compared to setting everything up manually with Socket.IO.
I prefer the second option too since it keeps concerns separate. Socket.IO is great for emitting and listening to events, while the API can handle the rest.
I think pushing the full order data is a more straightforward approach since the order details aren't usually too large. It might be a good idea to send a confirmation message back as well to acknowledge the order placement.
I’d go with just sending the order ID via Socket.IO. This method is typically more secure and easier to maintain. Plus, the little extra delay from fetching the full order details afterward isn’t usually a big deal.
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