How to Decouple Front-End from Back-End with Secure APIs for User Management in Blazor Web App (.NET 8)

Question

Hello,

I'm used to creating Blazor Web App projects in .NET 8 with "individual accounts" and interactive render mode set to Auto, with per-page interactivity. The advantage of this setup is that all the account management mechanics are scaffolded, requiring minimal adjustments to meet specific needs.

However, I now need to decouple the front-end from the back-end and use secure APIs, with one of these APIs dedicated to everything handled by Microsoft.AspNetCore.Identity. This API should ensure security across the application—offering all available services (scaffolding, etc.) when integrating account management into the Web App—and also secure other APIs (microservices).

Note: Initially, a single API will serve as the presentation layer for multiple services to avoid dealing with API gateways, as my team is not yet fully familiar with microservices architecture.

My issue is that I have never worked this way before and am not sure how to proceed. I have found many examples on YouTube, but none that closely match what I’m aiming to achieve. The MSDN documentation also hasn’t provided a concrete example for this setup.

Could you guide me on how to approach this? Ideally, I would like my "Users" project to be general enough to be reused in other applications, while also offering all the services, like page scaffolding, similar to what’s available when creating a web app with user accounts.

Thank you in advance.