Project Reactor · interview question
Given a Flux of Order objects in a non-blocking system, which transformation would you use to fetch and process order details asynchronously?
Multiple choiceHardchapter-19-curatedpremiumproject-reactorfunctional-pipelines-flatmap
Answer and explanation
Correct answer
B. OrderFlux.flatMap(order -> fetchOrderDetails(order))
Why
When fetching data asynchronously, flatMap() should be used because it allows integrating asynchronous calls that return a new reactive type, enabling further non-blocking operations.
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