create a login console app that reads data from json file named user in csharp

main.cs
using System.IO;
using Newtonsoft.Json;

public class User
{
    public string Username { get; set; }
    public string Password { get; set; }
}

class Program
{
    static void Main(string[] args)
    {
        // Read the JSON file
        var data = File.ReadAllText(@"user.json");

        // Deserialize the data into a list of User objects
        var users = JsonConvert.DeserializeObject<List<User>>(data);

        // Get username and password from user input
        Console.WriteLine("Enter Username:");
        var username = Console.ReadLine();

        Console.WriteLine("Enter Password:");
        var password = Console.ReadLine();

        // Authenticate user
        var user = users.SingleOrDefault(u => u.Username == username && u.Password == password);
        if (user == null)
        {
            Console.WriteLine("Invalid username or password");
        }
        else
        {
            Console.WriteLine("Login successful");
        }
    }
}
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