NestJS · Middle · Question 73 of 75

When are lazy-loaded modules (`LazyModuleLoader`) useful?

✓Correct answer: In serverless functions or workers, to load heavy modules only when a code path needs them and reduce cold-start time
2To make every request faster in a long-running server
3To load modules from a CDN

Explanation

Lazy modules don't register controllers or routes, so they suit services used from code, not HTTP endpoints.

Further reading

NestJS: Lazy-loading modules ↗

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