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How Uber replays real production traffic with CAPRI. From @udaykiran, Distinguished…

How Uber replays real production traffic with CAPRI. From @udaykiran, Distinguished Engineer at Uber: "If I want to…

This is a dev post classified by AGK Intelligence as Testing & observability (a free resource), kept by the Dev Radar because it carries real work, not commentary.

How Uber replays real production traffic with CAPRI. From @udaykiran, Distinguished Engineer at Uber: "If I want to test a new thing, how do I know every combination of these has no regression? We have different businesses, different product lines, different cities. If you were to create all permutations across this, you would have to maintain thousands and thousands of tests across the stack. That alone is a really hard problem. For some of our most complex platforms, we use capture replay. You can capture real production traffic with just one middleware, because now we have standardized l

Posted by The Pragmatic Engineer (51.9k followers) 2 h ago · 10 likes · 1.8k views · view the original post on X. Kept by the Dev Radar as Testing & observability. Tools mentioned: turbopuffer x Pragmatic Engineer, Linear, Airlock.

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