Systems Architecture for Scalable Web Apps
Systems Architecture for Scalable Web Apps Building scalable web apps means planning for growth from day one. Start with stateless services, clear data ownership, and reliable communication. As demand rises, you can add instances, routes, and storage without breaking the system. The goal is to keep user requests fast, even during traffic spikes or regional outages. Stateless services and horizontal scaling Keep each service capable of running many copies in parallel. Store user sessions outside the process, typically in a fast key-value store or via tokens. With a load balancer in front, new instances can be added or removed without impacting users. Avoid stubborn affinity or in‑memory state that breaks when a node dies. This makes deployments safer and recovery quicker. ...