Restate is an open source Durable Execution Engine that enables building stateful serverless applications on Knative by handling state persistence, service orchestration, and failure recovery automatically. The platform records execution progress and can suspend/resume applications, allowing Knative services to scale to zero during waiting periods. Developers write sequential code that looks like regular RPC services while Restate manages distributed systems complexities like retries, state consistency, and crash recovery. The article demonstrates building a user signup flow with Virtual Objects for state management and service orchestration patterns.
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