用于 net core 3.1 api 的 Swagger UI 非常慢 [英] Swagger UI for net core 3.1 api is very slow

问题描述

我将我们的网络核心 API 应用程序从 2.1 更新到 3.1，将 SwashBuckle.Asp.NetCore 更新到 5.0.0.这是我的启动集:

I updated Our net core API application from 2.1 to 3.1, SwashBuckle.Asp.NetCore to 5.0.0. Here is my startup set:

public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
     string authServerUrl = "http://testserver.com/identityserver4";
         services.AddControllersWithViews();

        services.AddSwaggerGen(c =>
        {
            c.SwaggerDoc("v1", new OpenApiInfo { Version = "v1", Title = "NetCore API V1" });

            // Define the OAuth2.0 scheme that's in use (i.e. Implicit Flow)
            c.AddSecurityDefinition("oauth2", new OpenApiSecurityScheme
            {
                Type = SecuritySchemeType.OAuth2,
                Flows = new OpenApiOAuthFlows
                {
                    AuthorizationCode = new OpenApiOAuthFlow
                    {
                            AuthorizationUrl = new Uri(authServerUrl + "connect/authorize"),
                            TokenUrl = new Uri(authServerUrl + "connect/token"),
                            Scopes = new Dictionary<string, string>
                            {
                                { "netCoreAPI.read", "read permission" },
                                { "netCoreAPI.write", "write permission" }
                            }                        }
                }
            });

            c.AddSecurityRequirement(new OpenApiSecurityRequirement
            {
                {
                    new OpenApiSecurityScheme
                    {
                        Reference = new OpenApiReference { Type = ReferenceType.SecurityScheme, Id = "oauth2" }
                    },
                    new[] { "netCoreAPI.read", "netCoreAPI.write" }
                }
            });
        });
    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }

            app.UseRouting();

            app.UseAuthentication();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });

            app.UseSwagger();
            app.UseSwaggerUI(c =>
            {
                c.SwaggerEndpoint("swagger/v1/swagger.json", "NetCore V1");
                c.EnableDeepLinking();
                c.OAuthClientId("clientId");
                c.OAuthClientSecret("clientSecret");
                c.OAuthAppName("netCoreApp");
                c.OAuthScopeSeparator(" ");
                c.OAuthUsePkce();
            });
        });
    }
}

初始 Swagger UI 显示相对较快.但是，当单击控制器中的方法时，需要 30 秒才能显示试用"按钮.有没有办法调试问题?或者有没有人遇到同样的问题?在将代码从 SwashBuckle 2.5 和 net core 2.1 转换为 SwashBuckle 5.0 和 net core 3.1 之前，swagger UI 运行速度非常快.

The initial Swagger UI displays relatively quickly. However, when a method in a controller is clicked, it takes 30 seconds to display "Try it out" button. Is there a way to debug the problem? Or Is there anyone having the same problem? Before the code was converted from SwashBuckle 2.5 and net core 2.1 to SwashBuckle 5.0 and net core 3.1, the swagger UI works very fast.

推荐答案

您在使用 NewtonSoft 吗?您需要添加:

Are you using NewtonSoft? You need to add:

Install-Package Swashbuckle.AspNetCore.Newtonsoft -Version 5.1.0

并添加:

services.AddSwaggerGenNewtonsoftSupport();
// explicit opt-in - needs to be placed after AddSwaggerGen()

https://github.com/domaindrivendev/Swashbuckle.AspNetCore#systemtextjson-stj-vs-newtonsoft

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