Writing · Nº 041065 essays
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Clear filtersEngineeringSeparate Chat History From Live DeliveryChat history and live message delivery are two systems, not one. Treat the durable log and the real-time channel separately or you will lose messages at scale.EngineeringHow to Guarantee Message Order in a Chat AppMessage order in a chat app is a backend job. Use monotonic sequence IDs, not client timestamps, or your users will see messages out of order.