Error [ERR_REQUIRE_ESM]

Describe the bug

Hello 👋 Since I switched from "18.0.2" to "19.0.1", Typescript does not compile anymore

Version

19.0.1

Expected behavior

Typescript should compile without any error message.

Actual behavior

I have the following error:

Error [ERR_REQUIRE_ESM]: require() of ES Module /Users/anthonny/projects/aaa/node_modules/@keycloak/keycloak-admin-client/lib/index.js from /Users/anthonny/projects/aaa/packages/api/infra/server/keycloak-plugin.ts not supported.
Instead change the require of index.js in /Users/anthonny/projects/aaa/packages/api/infra/server/keycloak-plugin.ts to a dynamic import() which is available in all CommonJS modules.

How to Reproduce?

I have a Typescript project with this tsconfig.json:

{
  "extends": "@tsconfig/node16/tsconfig.json",
  "compilerOptions": {
    "outDir": "dist"
  }
}

Just import the lib and use the client

Anything else?

Everything is ok if I go back to "18.0.2", thank you for your support 🙏😘

[anonrig]

The amount of pain the decision to convert the codebase is huge. Especially on packages that depend on this package.

There isn’t any logical reasoning behind converting a package to ESM only in terms of performance. Actually using ESM has worse performance than CJS in Node.js. (https://github.com/nodejs/node/issues/44186)

I recommend the distributors of this package change their decision and ease the pain of using this package.

The community is not ready for this kind of change.

[Nosfistis]

I applaud the move forward, yet this is a breaking change not mentioned anywhere clearly, and blocks development with mayor frameworks such as NestJS.

@GerDner I just booststrapped a new NestJS project and this works fine for me using the latest version of the Admin Client.

Could you upload it to a demo repo? I have done the same using the latest NestJS CLI and cannot create the Admin Client without triggering the error.