How to configure ASP.NET Core Identity

Short answer: ASP.NET Core Identity provides a complete solution for: User registration & login Roles, claims, tokens Password hashing Two-factor authentication ✅ Setup: dotnet add package Microsoft.AspNetCore.Identity.EntityFrameworkCore In Startup or Program.cs: services.AddIdentity<IdentityUser, IdentityRole>() .AddEntityFrameworkStores<ApplicationDbContext>() .AddDefaultTokenProviders();

Real-world example (ShopNest)

A ShopNest checkout request flows through middleware, hits a minimal API or controller, uses scoped services, and returns ProblemDetails on errors.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.