网关和服务发现

src/HelloShop.ApiService/Program.cs

@@ -1,39 +1,37 @@
+using HelloShop.ApiService.Infrastructure;
+using Yarp.ReverseProxy.Configuration;
+
 var builder = WebApplication.CreateBuilder(args);
 
 // Add service defaults & Aspire components.
 builder.AddServiceDefaults();
 
 // Add services to the container.
-builder.Services.AddProblemDetails();
+builder.Services.AddControllers().AddDataAnnotationsLocalization();
+
+builder.Services.AddHttpForwarderWithServiceDiscovery();
+
+builder.Services.AddReverseProxy()
+    .LoadFromConfig(builder.Configuration.GetSection("ReverseProxy"))
+    .LoadFromMemory(routes: [], clusters: []);
+
+builder.Services.AddSingleton<IConfiguredServiceEndPointResolver, ConfiguredServiceEndPointResolver>();
+builder.Services.AddSingleton<IReverseProxyConfigProvider, CustomReverseProxyConfigProvider>();
 
 var app = builder.Build();
 
-// Configure the HTTP request pipeline.
-app.UseExceptionHandler();
-
-var summaries = new[]
-{
-    "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
-};
-
-app.MapGet("/weatherforecast", () =>
-{
-    var forecast =  Enumerable.Range(1, 5).Select(index =>
-        new WeatherForecast
-        (
-            DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
-            Random.Shared.Next(-20, 55),
-            summaries[Random.Shared.Next(summaries.Length)]
-        ))
-        .ToArray();
-    return forecast;
-});
-
 app.MapDefaultEndpoints();
 
-app.Run();
-
-record WeatherForecast(DateOnly Date, int TemperatureC, string? Summary)
+app.Services.GetRequiredService<IHostApplicationLifetime>().ApplicationStarted.Register(async () =>
 {
-    public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
-}
+    IReverseProxyConfigProvider provider = app.Services.GetRequiredService<IReverseProxyConfigProvider>();
+    IReadOnlyList<RouteConfig> routes = await provider.GetRoutesAsync();
+    IReadOnlyList<ClusterConfig> clusters = await provider.GetClustersAsync();
+    app.Services.GetRequiredService<InMemoryConfigProvider>().Update(routes, clusters);
+});
+
+app.MapReverseProxy();
+
+app.MapControllers();
+
+app.Run();