What are ASP.NET Core 401 errors and how can I fix them?

What are ASP.NET Core 401 errors and how can I fix them?

ASP.NET Core 401 errors indicate that the request requires user authentication. To fix this, ensure that the user is logged in and has the necessary permissions.

What causes these errors in the first place?

These errors typically occur when a user tries to access a resource that requires authentication but hasn't provided valid credentials.

How can I implement proper authentication in my ASP.NET Core application?

You can implement authentication using ASP.NET Core Identity, JWT tokens, or third-party providers like Google or Facebook.

Are there any common mistakes to avoid when setting up authentication?

Yes, common mistakes include not configuring the authentication middleware correctly, failing to secure sensitive routes, and not validating user roles properly.