How to load JavaScript from disk?

[xperiandri]

I try to load NPM package downloaded via LibMan to a subfolder like this

let loadOpenApi = interactive.configureRequire({
    paths: {
        openApi: "./lib/openapi/src/index"
    }
});

loadOpenApi(["openApi"], ({ openapiGenerate: swaggerToJs }) => {
    swaggerToJs({
        file: "./openapi-risk.json",
      }).then(({ code, types }) => {
          console.log(code);
          console.log(types);
          fs.writeFileSync("./api.js", code);
          fs.writeFileSync("./api.d.ts", types);
      });
});

Nothing happens. Even no error.
How can I figure out what is wrong?