Can't use mjs module in aurelia plugin?

Help Requests
1

I have a plugin project, I’m trying to use just-diff in this project. au run is failing on a bundler “writeBundles” error saying that it cannot find the file “…\node_modules\just-diff\index.mjs.js” suggesting to use allowEmpty. It seems like it is tacking “.js” onto the end of the module property of just-diff’s package.json. Has anyone else ever seen this before?

UPDATE:
I was able to get this to work by specifying ‘just-diff/index’ as the import path, still seems like I shouldn’t have to do that though. I assume something about the aurelia-cli bundler doesn’t support dependencies like that? Or maybe just-diff is not configured correctly? Idk

2

aurelia-cli bundler was designed before nodejs introduced cjs mjs files. It’s not playing with those new files well.

3

Figured it was something like that. Thanks for replying though!

4

Running into this issue with multiple libraries that are changing their module files to .mjs. Has anyone found a good solution to this other than updating all of their imports?

A package alias might solve the issue, but what/where is the “dependency config” though?
CLI + built-in Bundler Advanced | Aurelia

5

For anyone else running into this issue, I’m having success with modifying the aurelia.json in the build.bundles.dependencies list. For example, in the latest fast-sort, the module was changed to sort.mjs. To fix it, I added the following to the dependencies list:

// file: aurelia.json
//...
{
    "name": "fast-sort",
    "path": "../node_modules/fast-sort/dist/",
    "main": "sort.min"
}
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