c# - 如何使用 C# .NET CORE 在 NSwag 文档中添加自定义 header ？

Question

我需要添加自定义 header ，但无法弄清楚。我正在尝试使用新的 services.AddOpenApiDocument() 而不是 services.AddSwaggerDocument()。我想在整个 API 上添加这些自定义 header ，而不仅仅是单个方法或 Controller 。我尝试添加一个操作处理器，但是当我加载 swagger UI 时，我收到以下错误“😱 无法渲染此组件，请参阅控制台。”

这是我的 ConfigureServices() 中的代码片段:

    services.AddOpenApiDocument(document =>
    {
        ...
        // this works fine
        document.OperationProcessors.Add(new OperationSecurityScopeProcessor("Bearer"));
        document.DocumentProcessors.Add(new SecurityDefinitionAppender("Bearer", new SwaggerSecurityScheme
            {
                Type = SwaggerSecuritySchemeType.ApiKey,
                Name = "Authorization",
                In = SwaggerSecurityApiKeyLocation.Header
            })
        );

        // this is the header i want to show up for all endpoints that is breaking
        document.OperationProcessors.Add(new SampleHeaderOperationProcessor());
    });

这是我的操作处理器:

public class SampleHeaderOperationProcessor : IOperationProcessor
{
    public Task<bool> ProcessAsync(OperationProcessorContext context)
    {
        context.OperationDescription.Operation.Parameters.Add(
            new SwaggerParameter {
                Name = "Sample",
                Kind = SwaggerParameterKind.Header,
                Type = NJsonSchema.JsonObjectType.String,
                IsRequired = false,
                Description = "This is a test header",
                Default = "{{\"field1\": \"value1\", \"field2\": \"value2\"}}"
            });

        return Task.FromResult(true);
    }
}

我在配置()中唯一与此相关的东西:

    app.UseSwagger();
    app.UseSwaggerUi3();                              

这是我的错误和控制台日志: My error and console log

如果有帮助，我正在使用 ASP .NET CORE 2.2 和 NSwag.AspNetCore v12.1.0

Answer 1

这是我在项目中实现的一个示例。对于我来说，它工作正常:

接口(interface)“IOperationProcessor”的实现:

using NSwag;
using NSwag.SwaggerGeneration.Processors;
using NSwag.SwaggerGeneration.Processors.Contexts;
using System.Threading.Tasks;

namespace api.mstiDFE._Helpers.Swagger
{
    public class AddRequiredHeaderParameter : IOperationProcessor
    {
        public Task<bool> ProcessAsync(OperationProcessorContext context)
        {
            context.OperationDescription.Operation.Parameters.Add(
            new SwaggerParameter
            {
                Name = "token",
                Kind = SwaggerParameterKind.Header,
                Type = NJsonSchema.JsonObjectType.String,
                IsRequired = false,
                Description = "Chave de acesso à API, fornecida pela RevendaCliente",
                Default = "Default Value"
            });

            return Task.FromResult(true);
        }
    }
}

startup.cs中的引用:

internal static void ConfigureServices(IServiceCollection services, IConfiguration configuration)
{

    // Register the Swagger services
    services.AddSwaggerDocument(config =>
    {
        // Adds the "token" parameter in the request header, to authorize access to the APIs
        config.OperationProcessors.Add(new AddRequiredHeaderParameter());

        config.PostProcess = document =>
        {
            document.Info.Version = "v1";
            document.Info.Title = "Title ";
            document.Info.Description = "API para geração de Documentos Fiscais Eletrônicos (DF-e) do projeto SPED";
            document.Info.TermsOfService = "None";
            document.Info.Contact = new NSwag.SwaggerContact
            {
                Name = "Name",
                Email = "Email ",
                Url = "Url "
            };
            document.Info.License = new NSwag.SwaggerLicense
            {
                Name = "Use under LICX",
                Url = "https://example.com/license"
            };

        };
    });            
}