C# Blazor Webassembly UserIsInRole始终为false

我试图通过与api对话来测试blazor webassembly身份验证。我的用户已通过身份验证，我可以搜索声明并获取角色，但我无法获取user.IsInRole返回除false以外的任何内容

这是一个简单的验证身份的页面，我试图按照IAmTimCorey的教程，但我似乎错过了一些东西

@page "/verifyauth"

<h3>Verify Auth</h3>

@if (isAuthenticated)
{
<h4>@userName is authenticated</h4>
<ul>
    <li>Access to Admin Role: @isAdmin</li>
    <li>Access to Cashier Role: @isCashier</li>
    <li>Access to Manager Role: @isManager</li>
</ul>
}
else
{
<h4>The user is not authenticated</h4>
}

@code {
    [CascadingParameter]
    public Task<AuthenticationState> AuthState { get; set; }

    private bool isAuthenticated = false;
    private string userName;
    private bool isAdmin = false;
    private bool isCashier = false;
    private bool isManager = false;

    protected override async Task OnInitializedAsync()
    {
        var authState = await AuthState;

        if (authState.User.Identity.IsAuthenticated) //This works and correctly verifies that I am authenticated
        {
            isAuthenticated = true;

            var claimsIdentity = authState.User.Identity as System.Security.Claims.ClaimsIdentity; //Setting up the current work around

            userName = claimsIdentity.Claims.FirstOrDefault(c => c.Type == "unique_name").Value; //This correctly gets the user name
            var role = claimsIdentity.Claims.FirstOrDefault(c => c.Type == "role").Value; //This correctly gets the role type "Admin"

            var test = authState.User.FindFirst(ClaimTypes.Name); // This returns null


            isAdmin = authState.User.IsInRole("Admin"); //false this is the only one that should return true
            isCashier = authState.User.IsInRole("Cashier"); //false
            isManager = authState.User.IsInRole("Manager"); //false
        }
    }

}

我找到了这行代码

var test = authState.User.FindFirst(ClaimTypes.Name);

如果我把它改成，它就会工作

var test = authState.User.FindFirst("Name");

这是我的认证方法

public string Authenticate(DataUserNoPasswordModel user)
    {
        var tokenHandler = new JwtSecurityTokenHandler();
        var key = Encoding.ASCII.GetBytes(_tokenKey);
        var tokenDescriptor = new SecurityTokenDescriptor
        {
            Subject = new ClaimsIdentity(new Claim[]
            {
                new Claim(ClaimTypes.Name, user.FirstAndLastName),
                new Claim(ClaimTypes.Role, user.RoleName)
            }),
            Expires = DateTime.UtcNow.AddHours(12),
            SigningCredentials = new SigningCredentials(
                new SymmetricSecurityKey(key),
                SecurityAlgorithms.HmacSha256Signature)
        };
        var token = tokenHandler.CreateToken(tokenDescriptor);
        return tokenHandler.WriteToken(token);
        //return tokenDescriptor;
    }

---

TimCo Retail教程将本地存储用于身份验证状态，您是否尝试清除浏览器缓存以验证未为用户存储旧角色？是的，我有。我在他的youtube视频上发表了评论，他说看看我的API。我将对此进行调查，看看这是否是问题所在。但是当我查看浏览器缓存时，我只看到令牌。我也应该看到其中的角色吗？你能发布你的API脚本吗？还请为其添加上下文，以便其他没有看过Tim视频的人也可以提供帮助

var test = authState.User.FindFirst("Name");

public string Authenticate(DataUserNoPasswordModel user)
    {
        var tokenHandler = new JwtSecurityTokenHandler();
        var key = Encoding.ASCII.GetBytes(_tokenKey);
        var tokenDescriptor = new SecurityTokenDescriptor
        {
            Subject = new ClaimsIdentity(new Claim[]
            {
                new Claim(ClaimTypes.Name, user.FirstAndLastName),
                new Claim(ClaimTypes.Role, user.RoleName)
            }),
            Expires = DateTime.UtcNow.AddHours(12),
            SigningCredentials = new SigningCredentials(
                new SymmetricSecurityKey(key),
                SecurityAlgorithms.HmacSha256Signature)
        };
        var token = tokenHandler.CreateToken(tokenDescriptor);
        return tokenHandler.WriteToken(token);
        //return tokenDescriptor;
    }