X5 tech

What is selection bias in click logs?

Can we implement the same REST endpoints by removing the resource name from the path (e.g., 'news')?

How to solve the double payment problem in case of a database write failure?

Why do we store timeoutId? What will happen if the Promise resolves before the timeout, and then the setTimeout with reject is triggered?

Delayed function call with frequency control

Which part of testing in the pipeline is faster: unit tests or integration tests?

How would you improve the onboarding of a banking application?