using asp.net core identity, create two roles called "admin" and "edit" in csharp

main.cs
services.AddIdentity<IdentityUser, IdentityRole>(options => {
    // Configure identity options
})
.AddEntityFrameworkStores<ApplicationDbContext>()
.AddDefaultTokenProviders();

services.Configure<IdentityOptions>(options => { 
    // Configure identity options 
});

services.AddAuthorization(options =>
{
    options.AddPolicy("AdminPolicy", policy => policy.RequireRole("admin"));
    options.AddPolicy("EditPolicy", policy => policy.RequireRole("edit"));
});
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main.cs
public async Task SeedRolesAsync(RoleManager<IdentityRole> roleManager)
{
    string[] roleNames = { "admin", "edit" };
    IdentityResult roleResult;

    foreach (string roleName in roleNames)
    {
        // Check if the role exists
        bool roleExists = await roleManager.RoleExistsAsync(roleName);
        if (!roleExists)
        {
            // If the role doesn't exist, create it
            IdentityRole role = new IdentityRole(roleName);
            roleResult = await roleManager.CreateAsync(role);
            if (!roleResult.Succeeded)
            {
                // Handle errors when creating the role
            }
        }
    }
}
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main.cs
var userManager = app.ApplicationServices.GetService<UserManager<IdentityUser>>();
var user = await userManager.FindByNameAsync("username");

// Add admin role to user
await userManager.AddToRoleAsync(user, "admin");
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