# Put it all together: design a hybrid pipeline over order events that delivers a live operational vie

Canonical URL: <https://datadriven.io/problems/put-it-all-together-design-a-hybrid-pipeline-over-order-eve-8109f083>

Domain: Pipeline Design · Difficulty: medium

## Problem

Put it all together: design a hybrid pipeline over order events that delivers a live operational view in seconds, an exactly-once billable count, and an exact batch financial close, with bad events routed aside so they can't halt the stream.

## Related

- [All practice problems](https://datadriven.io/problems)
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