Glossary term
What is stateless? Meaning for developers
In DevOps
Remembers nothing between requests. A stateless firewall needs rules for both directions; a stateless app can run on any server.
Learn it properly · DevOpsLesson 2: Networking Basics: IP, Ports, TCP/UDP and FirewallsHow a browser request actually finds and reaches your server. The layer Vercel hides completely, and the one you must understand before EC2 makes any sense.In API Design
Each request carries everything the server needs, so the server keeps no memory of earlier requests.
Learn it properly · API DesignLesson 0: What Makes a Good API: Resources, URLs and the ContractWhat an API contract is, REST in plain words, naming resources and URLs, and the rules that make an API predictable.