Python · Senior · Coding

Write an async function fetch_all that takes a list of URLs, an async function that fetches a single URL, and a limit on concurrent requests. It returns the results in the same order as the URLs, and a failure of one request must not take down the others.

~15 min by voice

How to approach it

This checks whether you can limit concurrency in asyncio with the right primitive. The task is also about result order, error isolation, timeouts and cancellation. Interviewers also look at whether you clarify the contract before writing code.

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asyncio concurrency

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Answer by voice

The interviewer will ask this question and listen. Think out loud and ask for a hint if you need one. When you're done, pause or tap “That's my answer”. In about a minute, your score and the points you covered show up here.

Best with headphones · ~15 min