Imagine you’re building an e-commerce platform and using an external payment processor like Stripe to collect payments from users. Once a user completes a payment, your system needs to: But here’s the challenge:Stripe operates on its own infrastructure. Your system doesn’t control it. So how do you know instantly when a payment goes through? A naive solution would be to keep asking Stripe every few seconds: This is known as polling. Now imagine doing this for every order on a site like Amazon. It just doesn’t scale and wastes server resources. Instead of your app repeatedly asking, what if Stripe…

Full Article >>