req.session is not available with Fastify

[andrasbacsai]

During development (with sandbox) everything works, but when I would like to deploy with Fastify, the req.session is not available.

"statusCode": 500,
"error": "Internal Server Error",
"message": "Cannot destructure property '_idx' of 'req.session' as it is undefined."
}

Reproduce:

• Clone this repository.
• pnpm install
• Test if it's working with pnpm dev -> Yes it will.
• Test if it's working with pnpm start -> Nope.

Let me know if you need any further information.