ASP.NET 8 - Cookie Authentication

Cookies are objects that store user's information to help identify, track, and personalize their experience on a user logs in to a website, the server creates a cookie with an ID, user data, and other information, which is then stored and sent back to the server with each request. In .NET 8, to implement cookies, you need to create an ASPNET CORE Web API and install the necessary packages. You can create a simple entity to represent a user with name, email, password, and roles. The user configuration sets the email as an index and marks it as unique to ensure different users cannot register with the same email address. In the DbContext, you need to configure the UserRoles relationship. The repository only needs to search for a user by their email. The login service receives user input, searches for the user by email, validates the password, and returns the user. To configure cookie authentication, you need to add the necessary configuration in the Program.cs file. The cookie service generates a cookie with the user's information, and the auth controller handles login, logout, and access-denied requests.