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Blazor WebAssembly阻止WebApi allowonymous

webassembly blazor asp.net-core c#

Venson · 技术社区 · 6 年前

我已经创建了一个blazorwebassembly项目,并希望提供一个具有公共可用函数的WebAPI。

[Route("api/[controller]")]
[ApiController]
[Authorize]
public class SystemEvalApiController : ControllerBase
{
    public SystemEvalApiController(AppDbContext context, IMapper mapper)
    {...}

    [Route("LatestEvals")]
    [AllowAnonymous]
    public ActionResult LatestEvals()

这是我的Api控制器,我应该能够调用它:

SystemEvalPublicViewModel = await Http
                .GetFromJsonAsync<SystemEvalPublicViewModel>(
                    HttpService.BuildUrl("api/SystemEvalApi/LatestEvals"));

当我没有登录任何帐户时。但是我得到了一个错误:

info: System.Net.Http.HttpClient.JPB.BorannRemapping.ServerAPI.LogicalHandler[100]
      Start processing HTTP request GET https://localhost:44330/api/SystemEvalApi/LatestEvals
blazor.webassembly.js:1 info: Microsoft.AspNetCore.Authorization.DefaultAuthorizationService[2]
      Authorization failed.

看起来“DefaultAuthorizationService”无法识别匿名属性,但我找不到它直接失败的地方。

如何声明一个WebAPI函数可以在不登录的情况下从HttpClient访问。 Microsoft.AspNetCore.Components.WebAssembly.Server服务器3.2.0.-rc1.20223.4条

编辑: 以下是ClientServices的声明:

var builder = WebAssemblyHostBuilder.CreateDefault(args);
builder.RootComponents.Add<App>("app");

builder.Services.AddHttpClient("JPB.BorannRemapping.ServerAPI", client =>
    {
        client.BaseAddress = new Uri(builder.HostEnvironment.BaseAddress);
    })
    .AddHttpMessageHandler<BaseAddressAuthorizationMessageHandler>();

// Supply HttpClient instances that include access tokens when making requests to the server project
builder.Services.AddTransient(sp => sp.GetRequiredService<IHttpClientFactory>().CreateClient("JPB.BorannRemapping.ServerAPI"));
builder.Services.AddTransient(e => new HttpService(e.GetService<HttpClient>()));
builder.Services.AddApiAuthorization();
builder.Services.AddBlazoredLocalStorage();

await builder.Build().RunAsync();

0 回复 | 直到 6 年前

agua from mars 6 年前

HttpClient 它使用 BaseAddressAuthorizationMessageHandler

登记处

builder.Services.AddHttpClient("JPB.BorannRemapping.ServerAPI.Anonymous", client =>
    {
        client.BaseAddress = new Uri(builder.HostEnvironment.BaseAddress);
    });

使用

@inject IHttpClientFactory _factory

@code {
...
     var httpClient = _factory.CreateClient("JPB.BorannRemapping.ServerAPI.Anonymous");
     var httpService = new HttpService(httpClient);
     SystemEvalPublicViewModel = await httpClient
                .GetFromJsonAsync<SystemEvalPublicViewModel>(
                    httpService.BuildUrl("api/SystemEvalApi/LatestEvals"));
}

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