NSwag多文档端点

时间:2017-07-21 13:26:51

标签: nswag

可以像swashbuckle一样拥有多个文档端点吗?

   
options.SwaggerEndpoint("/swagger/v1/swagger.json", "API v1");
options.SwaggerEndpoint("/swagger/v2/swagger.json", "API v2");

如果是,如何装饰api调用,使一些属于一个版本,一些属于另一个版本?

所以根据Rico Suter的建议,我做过的事情有点像:

ApiVersionAttribute.cs

public class ApiVersionAttribute:Attribute
    {
        private List<string> _versions = new List<string>();

        public List<string> Versions { get { return _versions; } }

        public ApiVersionAttribute(string version) {
            Versions.Add(version);
        }
    }

MyApiVersionProcessor.cs

        public string Version { get; set; }

        public MyApiVersionProcessor(string version)
        {
            this.Version = version;
        }

        public new Task<bool> ProcessAsync(OperationProcessorContext context)
        {
            bool returnValue = true;

            var versionAttributes = context.MethodInfo.GetCustomAttributes()
                .Concat(context.MethodInfo.DeclaringType.GetTypeInfo().GetCustomAttributes())
                .Where(a => a.GetType()
                                .IsAssignableTo("MapToApiVersionAttribute", TypeNameStyle.Name) 
                            || a.GetType()
                                .IsAssignableTo("ApiVersionAttribute", TypeNameStyle.Name)
                       )
                .Select(a => (dynamic)a)
                .ToArray();

            var versionAttribute = versionAttributes.FirstOrDefault();

            if (null == versionAttribute)
            {
                returnValue = false;
            }
            else
            {
                if (ObjectExtensions.HasProperty(versionAttribute, "Versions")
                    && Version.Equals(versionAttribute.Versions[0].ToString()))
                {
                    ReplaceApiVersionInPath(context.OperationDescription, versionAttribute.Versions);
                }
                else {
                    returnValue = false;
                }
            }

            return Task.FromResult(returnValue);
        }

        private void ReplaceApiVersionInPath(SwaggerOperationDescription operationDescription,
            dynamic versions)
        {
            operationDescription.Path = operationDescription.Path.Replace("{version:apiVersion}",
                versions[0].ToString());
        }
    }

在我的Global.asax

                // NSwag
                // https://github.com/RSuter/NSwag/wiki/OwinGlobalAsax#integration                
                app.UseSwaggerUi(typeof(WebApiApplication).Assembly, new SwaggerUiSettings
                {                       
                    //TypeNameGenerator = new MyTypeNameGenerator(),
                    MiddlewareBasePath = "/swagger",
                    SwaggerRoute = "/swagger/v1/swagger.json",
                    Version = "1.0.0.0",
                    // https://github.com/RSuter/NSwag/wiki/Middlewares
                    OperationProcessors =
                    {
                        new MyApiVersionProcessor("v1")
                    },
                    PostProcess = document =>
                    {                        
                        document.BasePath = "/";
                        document.Produces
                            = new List<string> { "application/json"
                                                , "text/json"
                                                , "text/html"
                                                , "plain/text"
                                                , "application/xml"};
                        document.Consumes
                            = document.Produces;
                        document.Info.Title = "Document V1";                     
                    }

                });

                app.UseSwaggerUi(typeof(WebApiApplication).Assembly, new SwaggerUiSettings
                {
                    //TypeNameGenerator = new MyTypeNameGenerator(),
                    MiddlewareBasePath = "/swagger",
                    SwaggerRoute = "/swagger/v2/swagger.json",
                    Version = "2.0.0.0",
                    OperationProcessors =
                    {
                        new MyApiVersionProcessor("v2")
                    },
                    PostProcess = document =>
                    {
                        document.BasePath = "/";
                        document.Produces
                            = new List<string> { "application/json"
                                                , "text/json"
                                                , "text/html"};
                        document.Consumes
                            = document.Produces;
                        document.Info.Title = "Document V2";
                    }

                });

装饰我的控制器&#39;方法

[ApiVersion("v2")]

[ApiVersion("v1")]

3 个答案:

答案 0 :(得分:2)

您可以定义app.UseSwagger两次并实现一个自定义操作处理器,该处理器根据您的需要仅过滤所需的api操作(即,在第一次调用中,您应该过滤allversion x,在第二个所有版本的y中)。

默认情况下,当前添加的ApiVersionProcessor仅使用第一个声明的版本替换路径路径中的版本占位符。我认为我们应该扩展这个处理器,以便您可以排除版本,也可以插入正确的版本。

顺便说一下:我是NSwag的作者。

答案 1 :(得分:1)

现在有一个开箱即用的解决方案。我为ASP.NET WebAPI Owin提出了它,我想它在ASP.NET Core中应该非常相似。

第一:您需要安装ASP.NET API版本控制(GitHubNuget

第二:您需要使用所需的路线和版本来装饰您的操作方法。例如:

[Route("api/v{version:apiVersion}/get1")]
[ApiVersion("1")]

public IEnumerable<string> Get1()
{           
   return new string[] { "value1", "value2" };
}

[Route("api/v{version:apiVersion}/get2")]
[ApiVersion("2")]

public IEnumerable<string> Get2()
{           
   return new string[] { "value1", "value2" };
}

第三:您必须将所需的配置添加到Startup.cs文件中,以:1)为每个API版本生成一个单独的OpenAPI规范文件2)要求NSwag通过Swagger-显示分隔文件-用户界面

public class Startup
{
    [Obsolete]
    public void Configuration(IAppBuilder app)
    {
        var config = new HttpConfiguration();

        // register versioning
        config.MapHttpAttributeRoutes(new DefaultInlineConstraintResolver
        {
            ConstraintMap = { ["apiVersion"] = typeof(ApiVersionRouteConstraint) }
        });

        config.AddApiVersioning(options =>
        {
            // reporting api versions will return the headers "api-supported-versions" and "api-deprecated-versions"
            options.ReportApiVersions = true;

            // automatically applies an api version based on the name of the defining controller's namespace
            options.Conventions.Add(new VersionByNamespaceConvention());
        });

        // generate OpenAPI Sepecification for each version and assign a route to it

        var assembly = typeof(Startup).Assembly;

        app.UseSwagger(assembly ,s =>
        {
            s.GeneratorSettings.OperationProcessors.TryGet<ApiVersionProcessor>().IncludedVersions = new[] { "1" };
            s.GeneratorSettings.SchemaType = SchemaType.OpenApi3;
            s.DocumentPath = "/swagger/v1.0.json";
        });

        app.UseSwagger(assembly , s =>
        {
            s.GeneratorSettings.OperationProcessors.TryGet<ApiVersionProcessor>().IncludedVersions = new[] { "2" };
            s.GeneratorSettings.SchemaType = SchemaType.OpenApi3;

            s.DocumentPath = "/swagger/v2.0.json";
        });

        // integrate Swagger-UI with the generated OpenAPI files generated before.
        _ = app.UseSwaggerUi3(assembly , s =>
          {
              s.SwaggerRoutes.Add(new SwaggerUi3Route("Version 1", "/swagger/v1.0.json"));
              s.SwaggerRoutes.Add(new SwaggerUi3Route("Version 2", "/swagger/v2.0.json"));

              s.GeneratorSettings.Title = "My API";
              s.GeneratorSettings.Description = "API functionalities.";
          });

        app.UseWebApi(config);

        config.EnsureInitialized();
    }
}

转到Swagger页面。您会看到:

  1. 右上角有一个下拉框,可让您选择版本
  2. 对于每个API版本,只有相关的操作方法是 列出。

答案 2 :(得分:0)

我们遇到了这个问题,但我们计划反过来解决这个问题。

  1. 卷曲 swagger 文档
  2. 翻找它并根据标签对其进行拆分
  3. 为每个标签创建本地 swagger 文档
  4. 针对每个新创建的 swagger 文档运行 nswag cli

这样我们就不必仅仅因为客户端需要其他东西而改变服务器。

(如果我们成功了会更新:D)


EDIT:所以我已经成功地将架构分解为多个架构,每个控制器一个,并通过 nswag 生成新文件。 不是最漂亮的代码,但它有效.. 如果有人感兴趣,可以在 github 上发布它