How to generate OpenAPI 3.0 YAML file from existing Spring REST API?

We have used lately springdoc-openapi java library. It helps automating the generation of API documentation using spring boot projects. It automatically deploys swagger-ui to a spring-boot application Documentation will be available in HTML format, using the official [swagger-ui jars]: The Swagger UI page should then be available at http://server:port/context-path/swagger-ui.html and the OpenAPI description will be … Read more

How to fix java.lang.RuntimeException: missing swagger input or config?

You are using Swagger Codegen 2.x which does not support OpenAPI 3.0. You need to use Swagger Codegen 3.x instead. You can download the latest 3.x CLI JAR from Maven Central: https://mvnrepository.com/artifact/io.swagger.codegen.v3/swagger-codegen-cli Here’s a direct link to v. 3.0.20 CLI (the latest version as of the time of writing): https://repo1.maven.org/maven2/io/swagger/codegen/v3/swagger-codegen-cli/3.0.20/swagger-codegen-cli-3.0.20.jar Or if you prefer to … Read more

Unable to resolve service for type ‘Swashbuckle.AspNetCore.Swagger.ISwaggerProvider’

A call to services.AddSwaggerGen(); appears to be missing in the ConfigureServices. public static IServiceCollection AddSwaggerGen( this IServiceCollection services, Action<SwaggerGenOptions> setupAction = null) { // Add Mvc convention to ensure ApiExplorer is enabled for all actions services.Configure<MvcOptions>(c => c.Conventions.Add(new SwaggerApplicationConvention())); // Register generator and it’s dependencies services.AddTransient<ISwaggerProvider, SwaggerGenerator>(); services.AddTransient<ISchemaGenerator, SchemaGenerator>(); services.AddTransient<IApiModelResolver, JsonApiModelResolver>(); // Register custom configurators … Read more

How to use Swagger as Welcome Page of IAppBuilder in WebAPI

I got this working how I wanted by adding a route in RouteConfig.cs like so: public static void RegisterRoutes(RouteCollection routes) { routes.IgnoreRoute(“{resource}.axd/{*pathInfo}”); routes.MapHttpRoute( name: “swagger_root”, routeTemplate: “”, defaults: null, constraints: null, handler: new RedirectHandler((message => message.RequestUri.ToString()), “swagger”)); routes.MapRoute( name: “Default”, url: “{controller}/{action}/{id}”, defaults: new { controller = “Home”, action = “Index”, id = UrlParameter.Optional } … Read more

Swagger schema properties ignored when using $ref – why?

TL;DR: $ref siblings are supported (to an extent) in OpenAPI 3.1. In previous OpenAPI versions, any keywords alongside $ref are ignored. OpenAPI 3.1 Your definition will work as expected when migrated to OpenAPI 3.1. This new version is fully compatible with JSON Schema 2020-12, which allows $ref siblings in schemas. openapi: 3.1.0 … components: schemas: … Read more

Spring REST API Documentation using Swagger [closed]

There currently is not a Spring MVC swagger module available (from Wordnik at least) but in general, enabling swagger on a JVM-based REST service is pretty simple. Swagger server support is divided into two parts–the core server and the integration with the REST service. See the Swagger github repo. Swagger core defines the document that … Read more

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