Stateless Protocol Constraints
Stateless protocols, such as REST, require each request to contain all necessary information for the server to process it, as the server does not store client context between requests. In financial systems, this constraint forces frequent re-authentication and re-fetching of state, which can introduce significant performance bottlenecks.
While this design improves horizontal scalability and simplifies server-side architecture, it is suboptimal for tracking complex derivative positions or active order flows. The overhead of repeatedly establishing connections and validating credentials consumes bandwidth and increases round-trip time.
Consequently, systems requiring high-frequency updates must transition to stateful alternatives to bypass these inherent limitations.