builder.Services.AddSwaggerGen(options =>

{

    options.SwaggerDoc("v1", new OpenApiInfo { Title = "My API", Version = "v1" });



    //多個 Project, 每一個 xmldocument 都要載入

    List<string> xmlFiles = Directory.GetFiles(AppContext.BaseDirectory, "*.xml", SearchOption.TopDirectoryOnly).ToList();

    foreach (string fileName in xmlFiles)

    {

        string xmlFilePath = Path.Combine(AppContext.BaseDirectory, fileName);

        if (File.Exists(xmlFilePath))

            options.IncludeXmlComments(xmlFilePath, includeControllerXmlComments: true);

    }



    //防止 SchemaId 的錯誤

    options.CustomSchemaIds(type => type.ToString());

});