Aaru.Server/Aaru.Server.New/Components/Account/Pages/ConfirmEmail.razor

@page "/Account/ConfirmEmail"
@using System.Text
@using Microsoft.AspNetCore.Identity
@using Microsoft.AspNetCore.WebUtilities

@inject UserManager<IdentityUser> UserManager
@inject IdentityRedirectManager   RedirectManager

<PageTitle>Confirm email</PageTitle>

<h1>Confirm email</h1>
<StatusMessage Message="@statusMessage"/>

@code {
    private string? statusMessage;

    [CascadingParameter]
    private HttpContext HttpContext { get; set; } = default!;

    [SupplyParameterFromQuery]
    private string? UserId { get; set; }

    [SupplyParameterFromQuery]
    private string? Code { get; set; }

    protected override async Task OnInitializedAsync()
    {
        if(UserId is null || Code is null)
        {
            RedirectManager.RedirectTo("");
        }

        IdentityUser? user = await UserManager.FindByIdAsync(UserId);

        if(user is null)
        {
            HttpContext.Response.StatusCode = StatusCodes.Status404NotFound;
            statusMessage                   = $"Error loading user with ID {UserId}";
        }
        else
        {
            string         code   = Encoding.UTF8.GetString(WebEncoders.Base64UrlDecode(Code));
            IdentityResult result = await UserManager.ConfirmEmailAsync(user, code);
            statusMessage = result.Succeeded ? "Thank you for confirming your email." : "Error confirming your email.";
        }
    }

}