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A stateless service is a service that does not maintain state information between message calls. Instead, all the information that a stateless service needs is either passed to it by the caller or stored in persistent storage. Stateless services require considerably less resource overhead than stateful or connection-oriented services because the connection can be dropped after each message like a Stateful Service yet, unlike a Stateful Service, nothing needs to be held in memory to recreate state when a new connection is created. Stateless services are a good way to build services that don’t require multi-step conversations.
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