Node.js · Senior · Question 75 of 75

A service does heavy image or video processing. Which approach is most sensible in a Node.js stack?

✓Correct answer: Use native or WebAssembly libraries in worker threads or separate workers, keeping the API process free
2Increase UV_THREADPOOL_SIZE to 1000
3Implement the processing in plain JavaScript in the request handler

Explanation

Libraries like sharp use native code off the main thread. Very heavy pipelines often live in separate services, scaled independently through a queue.

Further reading

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