Every request passing through the hub must carry a JSON Web Token (JWT). The hub should verify this token before passing the request to internal services.
Most hubs require instant updates (think dashboards or chat). Standard HTTP requests won't cut it because the server can't "talk" to the client unless asked. How To Make A Serverside Hub Part 2/2
Since the hub is the central point of contact, it is also the primary target for attacks. Every request passing through the hub must carry
A hub is useless if it forgets information the moment a user refreshes. You need a way to store "state"—who is online, what settings are active, and what messages are pending. Standard HTTP requests won't cut it because the
For a hub, Redis is often the gold standard. It’s an in-memory data store, meaning it’s incredibly fast for real-time updates. If you need long-term storage (like user profiles), pair it with a relational database like PostgreSQL .