This example uses `passport-azure-ad` for authentication. https://github.com/Azure-Samples/active-directory-b2c-javascript-nodejs-webapi/blob/49d6f813928a4c2ed41295c8dc043f8aac8f727b/package.json#L19 This package is no longer maintained, and not recommended to use. Ref: [GitHub Repo](https://github.com/AzureAD/passport-azure-ad) Please kindly update the example without the use of this package.