Types issue with ESM setup

[iamchathu]

Seems types doesn't work with latest versions of Fastify and Mercurius

https://stackblitz.com/edit/stackblitz-starters-1avfikyy?file=src%2Findex.ts

[jonnydgreen]

Ah interesting! Thanks for reporting this, would you be interested in contributing a fix for this? :) I'll also take a quick look tomorrow to replicate and understand the issue :)

[iamchathu]

I would like to contribute. But I couldn't yet able to pin point the issue

[iamchathu]

So I did some digging with following tool and the command

pnpx @arethetypeswrong/cli --from-npm mercurius-auth@6.0.0

It does give following errors

mercurius-auth v6.0.0

Build tools:
- typescript@^5.0.2

❗️ The resolved types use export default where the JavaScript file appears to use module.exports =. 
This will cause TypeScript under the node16 module mode to think an extra .default property access is required, but that will likely fail at runtime. 
These types should use export = instead of export default. https://github.com/arethetypeswrong/arethetypeswrong.github.io/blob/main/docs/problems/FalseExportDefault.md


┌───────────────────┬──────────────────────────────┐
│                   │ "mercurius-auth"             │
├───────────────────┼──────────────────────────────┤
│ node10            │ ❗️ Incorrect default export │
├───────────────────┼──────────────────────────────┤
│ node16 (from CJS) │ ❗️ Incorrect default export │
├───────────────────┼──────────────────────────────┤
│ node16 (from ESM) │ ❗️ Incorrect default export │
├───────────────────┼──────────────────────────────┤
│ bundler           │ ❗️ Incorrect default export │
└───────────────────┴──────────────────────────────┘