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Stop defaulting to WebSockets for every real-time feature. Here is a deep-dive comparison of HTTP/2 multiplexing, bi-directional streams, framing overhead, and network architecture in 2026. The Real-T

You've built and consumed APIs. You know what a GET request is, what a JSON response looks like, and how to add an Authorization header. You've used REST, maybe tried GraphQL, and perhaps heard of gRP

Every application, at some point, needs to talk to another system. A mobile app talks to a backend. A backend service talks to a payment gateway. An authentication service talks to a user service. A d
