Hld
System Design
Easy
EventPulse: Global Multi-Tenant Billing Aggregator
Design a high-throughput usage tracking system for a SaaS provider. The system must ingest millions of 'usage events' per second (e.g., API calls, storage bytes) from thousands of different customers and aggregate them into accurate monthly bills. Customers must be able to view their 'current spend' with no more than a 5-minute delay.
Key concepts
stream processingidempotencymulti-tenancy
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