For a recent project I needed my ASP.NET Core backend service to talk to an external license server using the Entra ID Client Credentials Flow for authentication. For these scenarios I like using Refit to generate the required http client logic. And adding auth for Entra ID is pretty straight forward as well if you know which libraries to use.
Continue reading Service-to-Service comminucation with Refit & Client Credentials Flow for Entra ID