bug: Can't use vite if you use the @aws/amazon-ecs-plugin-for-backstage package in your Backstage app

[kissmikijr]

📜 Description

I encountered this bug when I wanted to switch my bundler in my Backstage frontend application from webpack to vite:

[0] ✘ [ERROR] Failed to resolve entry for package "@backstage/integration-aws-node". The package may have incorrect main/module/exports specified in its package.json. [plugin vite:dep-pre-bundle]

[0]   The plugin "vite:dep-pre-bundle" was triggered by this import
[0] 
[0]     ../../node_modules/@aws/amazon-ecs-plugin-for-backstage/node_modules/@aws/aws-core-plugin-for-backstage-common/dist/index.esm.js:3:45:
[0]       3 │ ...aultAwsCredentialsManager } from '@backstage/integration-aws-node';

Looks like the issue is because the package @aws/aws-core-plugin-for-backstage-common has a dependency towards the package @backstage/integration-aws-node which is a node-library package (which is a backend type of package) but because the @aws/aws-core-plugin-for-backstage-common is a common package it is used in the frontend package: @aws/amazon-ecs-plugin-for-backstage So ultimately the backend package ends up in the frontend bundle and the bundler fails.

👍 Expected behavior

Cleanup the dependencies to not end up with backend code in the frontend plugins

👎 Actual Behavior with Screenshots

Right now some backend type of packages are getting bundled into the frontend and vite fails on them

👟 Reproduction steps

Add the plugin: @aws/amazon-ecs-plugin-for-backstage to your project's frontend package and try to start your frontend with the EXPERIMENTAL_VITE=1 flag

📃 Content

No response

🖥️ Your Environment

No response

[niallthomson]

Hi @kissmikijr thanks for reporting this I'll take a look in to it

[niallthomson]

I think we'll need to split the common package and add a node package to resolve this. I'll try to figure out how much effort this will be this week.

[niallthomson]

I split the common package and published a new release. Can you let me know if this fixes the issue?