Swagger not working correctly with multiple versions of ASP.NET WebApi app

Question

Please help me with this, it looked easy at first, now I\'m late in the project:

I\'m trying to setup API versioning for a ASP.NET WebApi project, along with Swagger

Answer 1

Solved it by:

1. Adding the Microsoft.AspNet.WebApi.Versioning.ApiExplorer package

2. Using the versioned API explorer as below (note that I had to move the code from SwaggerConfig.cs in WebApiConfig.cs due to initialization issues):

       var apiExplorer = config.AddVersionedApiExplorer(options => {
           options.GroupNameFormat = "'v'VVV";
       });
   
       var versionSupportResolver = new Func((apiDescription, version) => apiDescription.GetGroupName() == version);
   
       var versionInfoBuilder = new Action(info => {
           foreach (var group in apiExplorer.ApiDescriptions)
           {
               info.Version(group.Name, $"MyAPI v{group.ApiVersion}");
           }
       });
   
       config
           .EnableSwagger("{apiVersion}/swagger", swagger => {
               swagger.OperationFilter();
               swagger.MultipleApiVersions(versionSupportResolver, versionInfoBuilder);
               swagger.IncludeXmlComments(WebApiConfig.XmlCommentsFilePath);
           })
           .EnableSwaggerUi(swaggerUi => {
               swaggerUi.EnableDiscoveryUrlSelector();
               swaggerUi.DocExpansion(DocExpansion.List);
           });