NestJS · Middle · Question 53 of 75

Why might you switch a Nest app from Express to Fastify?

✓Correct answer: For higher throughput and lower overhead; most Nest code stays the same, but Express-specific middleware and packages need alternatives
2Fastify is required for GraphQL
3Express is not supported anymore

Explanation

Create the app with new FastifyAdapter(). Check that libraries you use (file upload, sessions) have Fastify equivalents.

Further reading

NestJS: Performance (Fastify) ↗

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