} Ok, in that case you can provide the solution you have described or just annotate the bean with @RefreshBean, Hi, how did you get the top bar api spec selector/dropdown? private ApiInfo apiInfo() { * If it matches, a new request matching condition is generated, and the new request matching condition is the current request matching condition

*-service)) return null; The API path like /v3/api-docs/{SERVICE_NAME} is not exactly what we want to achieve, because our routing to the downstream services is based on the service name fetched from discovery. public Mono> securityConfiguration() { .forEach(predicateDefinition -> resources.add(swaggerResource(routeDefinition.getId(), private final static Pattern VERSION_PREFIX_PATTERN = Pattern.compile("/v(\\d+)/"); public class SwaggerHandler { Make sure to have the below dependencies in your services: product, payment, order and api-gateway: Add @EnableSwagger2 annotation in all of your services. return Mono.just((new ResponseEntity<>(swaggerResources.get(), HttpStatus.OK))); public static final String API_URI = "/v2/api-docs"; By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. List resources = new ArrayList<>(); - Path=/admin/** documentation-service: Spring Boot-based REST application consolidating all the Swagger JSON and offering it in a single endpoint. Override the default behavior of the call to the service id and return JSON from ServiceDefinitionsContext as a response. I took a look on it one more time, and you are right Im returning the empty list of GroupedOpenApi in apis() method of course it is oversight, because I forgottten to call add method. Find centralized, trusted content and collaborate around the technologies you use most. @GetMapping("/configuration/security") private UiConfiguration uiConfiguration; } I was working on the update, but still with the later version than you: https://github.com/piomin/sample-spring-microservices-new/blob/master/gateway-service/pom.xml. return new Docket(DocumentationType.SWAGGER_2) .filter(predicateDefinition -> ("Path").equalsIgnoreCase(predicateDefinition.getName())) Makes handling with third-party-developers a lot easier. @Override Then, put this config in api-gateway and things should work. I feel like Im missing a piece. }, public class CustomRequestMappingHandlerMapping extends RequestMappingHandlerMapping { }, @Configuration Also I do not really understand what List apis() is doing since it does not return anything, Do I have to somehow configure swagger to include the api doc endpoints? As we already know, it is very easy to document REST applications using the SpringFox Swagger-UI library, but a problem arises when we are working in an environment where we have multiple REST-based applications. Yes I can access the API From Gateway API. @GetMapping("/configuration/ui") Trending is based off of the highest score sort and falls back to it if no posts are trending. } pawe microservices divante jdrzejewski service-url: However, the API gateway, which is built on top of Spring Cloud Gateway uses Netty as an embedded server and is based on reactive Spring WebFlux. public ApiVersionCondition getMatchingCondition(HttpServletRequest request) { io.springfox Over 2 million developers have joined DZone.

Currently, the most important problems with this library are a lack of support for OpenAPI in the newest version 3, and for Spring reactive APIs built using WebFlux. return Mono.just(new ResponseEntity<>( /** */ Okay, so for that I have a follow-up question. You can now choose to sort by Trending, which boosts votes that have happened recently, helping to surface more up-to-date answers. , @RestController protected RequestCondition getCustomMethodCondition(Method method) { To subscribe to this RSS feed, copy and paste this URL into your RSS reader. What is Swing Gateway? It consists of Spring Cloud Config Server, Eureka discovery, and Spring Cloud Gateway as API gateway. resources.add(swaggerResource(resourceName, location)); Optional.ofNullable(uiConfiguration).orElse(UiConfigurationBuilder.builder().build()), HttpStatus.OK)); With an eventlistener on RefreshRoutesEvent.class the gateway will refresh the swagger-ui when new services come up or go down. What's the difference between @Component, @Repository & @Service annotations in Spring? After aggregation, you can access the swagger of all microservices by visiting the swagger-ui page of the gateway. * And some of the templates match the specified request request, then the newly created request matching condition returned will only be Interesting. Proudly powered by WordPress | Theme: HoneyWaves by SpiceThemes. predicates: I would change that address on gateway from /v3/api-docs to another.

I am not using zuul I am using Swing Gateway. Fetch errorNot Found /v3/api-docs/order, Hello Bro, Working with microservices and I was using rest doc for monolithic solutions. Blondie's Heart of Glass shimmering cascade effect. If you would like to contact me in order you have any questions, thoughts or ideas (e.g. blazor lifecycle methods inheritance Cannot Get Optimal Solution with 16 nodes of VRP with Time Windows. This article is just showing it. springfox-swagger2 * #getMatchingCondition method, so as to ensure their comparison public class SwaggerConfig { if (m.find()) { routeLocator.getRouteDefinitions().subscribe(routeDefinition -> { I think this is a great way of bundeling all API-Docs in one swagger. @GetMapping("") This is the most important component which reads all the registered service instances on Eureka server, polls them for the Swagger definition, and stores them in ServiceDefinitionsContext. if (version >= getApiVersion()) { /** if (Objects.isNull(apiVersion)) { Is there a way to generate energy using a planet's angular momentum. @Autowired(required = false) */ The repository with source code is available on GitHub: https://github.com/piomin/sample-spring-microservices-new.git. * Check whether the current request matching condition matches the specified request request, if it does not match, return null, @Autowired return Mono.just(new ResponseEntity<>( The following picture shows the architecture of our system. @RequestMapping("/swagger-resources") * This method assumes that the two request matching conditions being compared are both called for the request object request //Remove routes from DiscoveryClientRouteDefinitionLocator and construct swaggerResource I have seen this being done in many production level projects. 2.9.2 Similar approach could be followed for other micro-services. If you prefer such solution you can annotate this bean List with @RefreshScope i force refreshing using also actuactor endpoint.

if (!StringUtils.endsWithIgnoreCase(path, SwaggerProvider.API_URI)) { int version = Integer.valueOf(m.group(1)); this.apiVersion = apiVersion; } }

For example, we dont want to generate OpenAPI manifests for all HTTP endpoints exposed by the application like Spring specific endpoints, so we may define a base package property for scanning as shown below. Spring API Gateway java.net.ConnectException: Connection timed out: no further information. } .forEach(routeDefinition -> { Add @EnableZuulProxy annotation in api-gateway. public Mono swaggerResources() { Hi Piotr , i am following your blogs as it is and implemented same in my application but am getting error, http://localhost:8989/order/ (8989 is my api gateway port & order is my microservice), when am trying this , am getting 404 , apart from that when i opened my swagger html, Fetch errorNot Found /v3/api-docs/order This works then together with the rewriting: @Bean swaggerResource.setName(name); .build(); } Thanks I have a similar article about Zuul and SpringFox Swagger: https://piotrminkowski.com/2017/04/14/microservices-api-documentation-with-swagger2/, Hello, thank you for the article. As for versions 1.3 they removed the addGroup call from the GroupedOpenAPI. spring-cloud-starter-gateway Configure SwaggerProvider to obtain Api-doc, namely SwaggerResources.

Maybe that changed something. This repository has been used as an example in another article, so it contains code not only for Springdoc library demo. - SwaggerHeaderFilter org.springframework.cloud Hi, }. public OperationCustomizer customize() { 1.4.5. This is the routing configuration in API Gateway Spring boot, Swagger configuration in Order Microservice Project. public SwaggerHandler(SwaggerResourcesProvider swaggerResources) { As you see we can still have SpringFox enabled with @EnableSwagger2. ServerHttpRequest request = exchange.getRequest(); Please note that this component can be part of a gateway or the registry itself, but I have chosen to keep it separate. You can do it using actuator endpoints for that they allows to add a new route dynamically. public GatewayFilter apply(Object config) { .description("myCustomHeader") rev2022.7.21.42639. .description("test") @GetMapping("/{a}/{b}") .name("myCustomHeader")); Springdoc OpenAPI is compatible with OpenAPI 3, and supports Spring WebFlux, while SpringFox is not. return new ApiVersionCondition(other.getApiVersion()); I have a API gateway written with Zuul (verison 1). A group shows up if I provide a single Bean of GroupedOpenAPI though.. Im using the latest version of spring-open docs (1.3.9).

465), Design patterns for asynchronous API communication. Each of our Spring Boot microservices is built on top of Spring MVC and provides endpoints for standard synchronous REST communication. private SecurityConfiguration securityConfiguration; public SwaggerProvider(DiscoveryClientRouteDefinitionLocator routeLocator) { Most of us end up managing a separate Swagger-UI for each application, which means that each service will have its own endpoint and to access the Swagger-UI and we have to use a different URL for different applications.

Probably I could just call GroupedOpenApi.builder()build() in the loop without returning anything and it will also work. public int getApiVersion() { Heres the fragment of code inside gateway-service responsible for creating a list of OpenAPI resources handled by the gateway. This should route the traffic from api-gateway swagger to your other services. Why had climate change not been proven beyond doubt for so long? .termsOfServiceUrl("") ApiVersion apiVersion = AnnotationUtils.findAnnotation(method, ApiVersion.class); * @return @GetMapping("") } When you will land in your api-gateway swagger page, in the top right you will see a select option for product, payment and order services. @Autowired - id: wd-admin Hello, } Configure Swagger to make API annotations take effect. }, https://swagger.io/docs/open-source-tools/swagger-ui/usage/configuration/. But the truth is that it works even without this add, probably because of that line inside GroupedOpenApi constructor: SwaggerUiConfigProperties.addGroup(this.group). this one does .route(r -> r.path("/order/**") .filters(f -> f.hystrix(option -> option.setName("order-service"). So if you call address like http://localhost:8060/employee/** it is automatically load balanced between all registered instances of employee-service. //The principle of nearest priority, @ApiVersion defined by method> @ApiVersion defined by class After accessing Swagger UI exposed on the gateway you may see that we can choose between all three microservices registered in the discovery. Announcing the Stacks Editor Beta release! private final RouteLocator routeLocator; ServerWebExchange newExchange = exchange.mutate().request(newRequest).build(); Add the Swagger dependency package to the business project Admin (using Eureka as the registry, the article does not show the extra part).

.apiInfo(apiInfo()) List routes = new ArrayList<>(); @Override Enter your email address to follow this blog and receive notifications of new posts by email. Helped me a lot! org.springframework.boot setFallbackUri("forward:/orderFallBack"))) .uri("lb://ORDER-SERVICE") .id("order-service")). Is it possible to refresh the Groups when i start new microservices? }, routes: * @return List resources = new ArrayList<>(); As a code example in this article we will use a typical microservices architecture built with Spring Cloud. There is no Select a definition select box shown for api groups. private final DiscoveryClientRouteDefinitionLocator routeLocator; Before lets take a look on Eureka after running all required Spring Boot applications. public class SwaggerHandler { To enable Springdoc for standard Spring MVC based application you need to include the following dependency into Maven pom.xml. Is there any way to document the API through API gateway in swagger or what is the best practice for this case. Because SwaggerConfig is not configured in Gateway, and running Swagger-ui needs to rely on some interfaces, my idea is to establish the corresponding swagger-resource endpoint by myself. Do I need to use springfox + docket aswell? You can add a few more API services to try the effect, Reference : https://blog.csdn.net/ttzommed/article/details/81103609, public void apis(RouteDefinitionLocator locator, SwaggerUiConfigProperties swaggerUiConfig) { I have already written about documentation for microservices more than two years ago in my article Microservices API Documentation with Swagger2.