Unable to infer base url. This is common when using dynamic servlet registration or when the API is behind an API Gateway

Question

I already went Why does springfox-swagger2 UI tell me "Unable to infer base url." and Getting an unexpected result while configuring Swagger with Spring Boot and not using Spring Security at all and for each service, I am using @EnableSwagger2 annotations.

I'm following tutorial from link: https://dzone.com/articles/quick-guide-to-microservices-with-spring-boot-20-e and using gateway-service for the project to run instead of proxy-service.

gateway-service.yml

server:
  port: 8060

eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:8061/eureka/

logging:
  pattern: 
    console: "%d{yyyy-MM-dd HH:mm:ss} ${LOG_LEVEL_PATTERN:-%5p} %m%n"

spring:
  cloud:
    gateway:
      discovery:
        locator:
          enabled: true
      routes:
      - id: employee-service
        uri: lb://employee-service
        predicates:
        - Path=/employee/**
        filters:
        - RewritePath=/employee/(?<path>.*), /$\{path}
      - id: department-service
        uri: lb://department-service
        predicates:
        - Path=/department/**
        filters:
        - RewritePath=/department/(?<path>.*), /$\{path}
      - id: organization-service
        uri: lb://organization-service
        predicates:
        - Path=/organization/**
        filters:
        - RewritePath=/organization/(?<path>.*), /$\{path}

OrganizationApplication.java and all other services are implemented exactly like this.

@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
@EnableSwagger2
public class OrganizationApplication {

    public static void main(String[] args) {
        SpringApplication.run(OrganizationApplication.class, args);
    }

    @Bean
    public Docket swaggerApi() {
        return new Docket(DocumentationType.SWAGGER_2)
                .select()
                    .apis(RequestHandlerSelectors.basePackage("pl.piomin.services.organization.controller"))
                    .paths(PathSelectors.any())
                .build()
                .apiInfo(new ApiInfoBuilder().version("1.0").title("Organization API").description("Documentation Organization API v1.0").build());
    }

    @Bean
    OrganizationRepository repository() {
        OrganizationRepository repository = new OrganizationRepository();
        repository.add(new Organization("Microsoft", "Redmond, Washington, USA"));
        repository.add(new Organization("Oracle", "Redwood City, California, USA"));    
        return repository;
    }
}

Answer 1

Upgrade your springfox-swagger2 and springfox-swagger-ui dependencies to 2.9.2 version.