聚合 API 网关

src/HelloShop.ApiService/Controllers/PermissionsController.cs

@@ -0,0 +1,18 @@
+using HelloShop.ApiService.Services;
+using HelloShop.ServiceDefaults.Permissions;
+using Microsoft.AspNetCore.Mvc;
+
+namespace HelloShop.ApiService.Controllers;
+
+[Route("api/[controller]")]
+[ApiController]
+public class PermissionsController(IPermissionService permissionService) : ControllerBase
+{
+    [HttpGet("Definitions")]
+    public async Task<ActionResult<IReadOnlyList<PermissionGroupDefinitionResponse>>> GetAllPermissionDefinitions()
+    {
+        IReadOnlyList<PermissionGroupDefinitionResponse> permissionGroupDefinitions = await permissionService.GetAllPermissionGorupDefinitionsAsync(HttpContext.RequestAborted);
+
+        return permissionGroupDefinitions.Any() ? Ok(permissionGroupDefinitions) : NoContent();
+    }
+}

src/HelloShop.ApiService/Program.cs

@@ -4,6 +4,7 @@ using HelloShop.ServiceDefaults.Extensions;
 using Microsoft.Extensions.Options;
 using Swashbuckle.AspNetCore.SwaggerUI;
 using HelloShop.ApiService.Extensions;
+using HelloShop.ApiService.Services;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -22,6 +23,7 @@ builder.Services.AddReverseProxy()
 builder.Services.AddSingleton<IConfiguredServiceEndPointResolver, ConfiguredServiceEndPointResolver>();
 builder.Services.AddSingleton<IReverseProxyConfigProvider, CustomReverseProxyConfigProvider>();
 builder.Services.AddTransient<IConfigureOptions<SwaggerUIOptions>, OpenApiConfigureOptions>();
+builder.Services.AddTransient<IPermissionService, PermissionService>();
 
 builder.Services.AddOpenApi();
 

src/HelloShop.ApiService/Services/IPermissionService.cs

@@ -0,0 +1,8 @@
+using HelloShop.ServiceDefaults.Permissions;
+
+namespace HelloShop.ApiService.Services;
+
+public interface IPermissionService
+{
+    Task<IReadOnlyList<PermissionGroupDefinitionResponse>> GetAllPermissionGorupDefinitionsAsync(CancellationToken cancellationToken = default);
+}

src/HelloShop.ApiService/Services/PermissionService.cs

@@ -0,0 +1,35 @@
+using HelloShop.ApiService.Infrastructure;
+using HelloShop.ServiceDefaults.Permissions;
+
+namespace HelloShop.ApiService.Services;
+
+public class PermissionService(HttpClient httpClient, IConfiguredServiceEndPointResolver serviceEndPointResolver) : IPermissionService
+{
+    public async Task<IReadOnlyList<PermissionGroupDefinitionResponse>> GetAllPermissionGorupDefinitionsAsync(CancellationToken cancellationToken = default)
+    {
+        List<PermissionGroupDefinitionResponse> result = [];
+
+        httpClient.Timeout = TimeSpan.FromSeconds(10);
+
+        IReadOnlyCollection<ConfiguredServiceEndPoint> serviceEndPoints = await serviceEndPointResolver.GetConfiguredServiceEndpointsAsync(cancellationToken);
+
+        await Parallel.ForEachAsync(serviceEndPoints, new ParallelOptions{ CancellationToken= cancellationToken}, async (serviceEndPoint, cancelToken) =>
+        {
+            UriBuilder uriBuilder = new(serviceEndPoint.ServiceName) { Path = "api/Permissions/PermissionDefinitions" };
+
+            HttpResponseMessage response = await httpClient.GetAsync(uriBuilder.Uri, cancelToken);
+
+            if (response.IsSuccessStatusCode)
+            {
+                List<PermissionGroupDefinitionResponse>? permissionGroupDefinition = await response.Content.ReadFromJsonAsync<List<PermissionGroupDefinitionResponse>>(cancelToken);
+
+                if (permissionGroupDefinition != null)
+                {
+                    result.AddRange(permissionGroupDefinition);
+                }
+            }
+        });
+
+        return result.DistinctBy(x => x.GroupName).ToList();
+    }
+}

src/HelloShop.ServiceDefaults/Extensions/PermissionExtensions.cs

@@ -38,7 +38,7 @@ public static class PermissionExtensions
             {
                 PermissionGroupDefinitionResponse permissionGroupDefinition = new()
                 {
-                    Name = permissionGroup.Name,
+                    GroupName = permissionGroup.Name,
                     DisplayName = permissionGroup.DisplayName,
                     Permissions = []
                 };

src/HelloShop.ServiceDefaults/Models/Permissions/PermissionGroupDefinitionResponse.cs

@@ -2,7 +2,7 @@
 
 public class PermissionGroupDefinitionResponse
 {
-    public required string Name { get; init; }
+    public required string GroupName { get; init; }
 
     public string? DisplayName { get; set; }