Using Claims Claims are user attributes (e.g., email, role, permissions). Add claims when creating identity: var claims = new List<Claim> { new Claim(ClaimTypes.Name, user.UserName), new Claim("Permission", "Edit") }; Access in code: var claim = User.FindFirst("Permission")?

Short answer: Using Claims Claims are user attributes (e.g., email, role, permissions).

Explain a bit more

Add claims when creating identity: var claims = new List<Claim> { new Claim(ClaimTypes.Name, user.UserName), new Claim("Permission", "Edit") }; Access in code: var claim = User.FindFirst("Permission")? is a common interview topic in ASP.NET Core. Give a clear definition, then one concrete example. Using Claims Claims are user attributes (e.g., email, role, permissions). Add claims when creating identity: var claims = new List<Claim> { new Claim(ClaimTypes.Name, user.UserName), new Claim("Permission", "Edit") }; Access in code: var claim = User.FindFirst("Permission")? is a common interview topic in ASP.NET Core. Give a clear definition, then one concrete example.

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.