Luismi Ramírez

> is it covered by tests? does it have docs? Yes, we have a test-setup for it working with Fastify Pino logging: https://github.com/appsignal/test-setups/blob/main/nodejs/fastify/app/src/app.ts And its docs page: https://docs.appsignal.com/logging/platforms/integrations/nodejs.html#usage-with-pino

Hi there, @ijjk. I noticed that this PR doesn't have any reviewers, just pinging to make sure this is in someone's radar.

I couldn't reproduce using `setErrorHandler()` in Fastify 4 and 5. Both helpers `setError()` and `sendError()` work just fine. However, as the customer reported, they stop working when you set up...

I've got the same problem with Fastify v4 and v5.