Statelessness

Summary

The REST constraint that each request must contain all the information needed to process it — the server shouldn't rely on memory of previous requests.

How to Learn This

1Identify what data a stateless API must include in every request (e.g. auth tokens).
2Learn why statelessness is what makes APIs horizontally scalable.
3Compare a stateless REST API to a stateful, session-based server.

HTTP Status Codes

REST Principles

More topics in Internet & Backend Basics

Internet HTTP vs HTTPS DNS Client-Server Architecture Request-Response Cycle HTTP Methods HTTP Status Codes REST Principles JSON XML Headers & Cookies CORS Idempotency API Gateways

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