在最小 API Ocelot 网关中禁用 CORS

Question

所以问题是我的前端有 Blazor WebAssembly，通过 Ocelot API 网关进行 API 调用，但由于某种原因 CORS 失败

但是在Program.cs的Ocelot Gateway中我有

using Ocelot.DependencyInjection;
using Ocelot.Middleware;

var builder = WebApplication.CreateBuilder(args);

builder.Configuration.SetBasePath(builder.Environment.ContentRootPath)
    .AddJsonFile("ocelot.json", optional: false, reloadOnChange:true)
    .AddEnvironmentVariables();

builder.Services.AddOcelot(builder.Configuration);

var app = builder.Build();
await app.UseOcelot();

app.UseCors(builder => builder
    .AllowAnyOrigin()
    .AllowAnyMethod()
    .AllowAnyHeader());

app.Run();

像这样也行不通：

builder.Services.AddCors(options =>
{
    options.AddPolicy("asd",  
        policy =>  
        {  
            policy.AllowAnyOrigin().AllowAnyMethod();
        });  
});

var app = builder.Build();
await app.UseOcelot();
app.UseCors("asd");
app.Run();

我应该怎么做才能访问任何来源或摆脱这个 cors？ 我几乎尝试了所有方法，但似乎没有什么能解决我的问题。

Answer 1

解决方案：

using Ocelot.DependencyInjection;
using Ocelot.Middleware;

var builder = WebApplication.CreateBuilder(args);

builder.Configuration.SetBasePath(builder.Environment.ContentRootPath)
    .AddJsonFile("ocelot.json", optional: false, reloadOnChange:true)
    .AddEnvironmentVariables();

builder.Services.AddOcelot(builder.Configuration);

builder.Services.AddCors(); // Add cors

var app = builder.Build();
app.UseCors(builder => builder // Allow any
    .AllowAnyOrigin()
    .AllowAnyMethod()
    .AllowAnyHeader());

await app.UseOcelot();
app.Run();