How to make Vite use a different main in package.json for development servers?

[samvv]

Hi!

First of all a big thanks for making such an awesome bundler. I use it daily and it works like a charm.

I recently stumbled on an issue, though. I have a monorepo containing two projects: a web app and a library. The library and app are both written in TypeScript, with the app depending on the library.

As far as I can tell, Vite has no mechanism to let it know that the source files of my library are in src/ while maintaining that build/index.js has to be used whenever bundling to production.

I could do something like this:

{
  "exports": {
    ".": {
      "import": "./src/index.ts",
      "require": "./build/index.js"
    }
  }
}

But that doesn't make any sense when shipping the package because NodeJS will try to import TypeScript files.

Is there any solution to this problem?