What is Eureka Naming Server?

 

2. Add @EnableEurekaServer into initializer class

package com.onlyfullstack.eurekanamingservice;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;

@SpringBootApplication
@EnableEurekaServer
public class EurekaNamingServiceApplication {

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

3. Add below properties into application.properties file of eureka-naming-server project

spring.application.name=eureka-naming-service
server.port=8761

eureka.client.register-with-eureka=false
eureka.client.fetch-registry=false

4. Start the EurekaNamingServiceApplication and open http://localhost:8761 , it will show the registered services with it. As of now we don’t have any service registered with naming service so its showing as No instances available.

5. Add below maven dependency in accounts-service and customer-service.

<dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>

6. Add @EnableDiscoveryClient into CustomerServiceApplication and AccountServiceApplication as below
AccountServiceApplication

package com.onlyfullstack.accountservice;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;

@SpringBootApplication
@EnableFeignClients
@EnableDiscoveryClient
public class AccountServiceApplication {

 public static void main(String[] args) {
  SpringApplication.run(AccountServiceApplication.class, args);
 }
 
/*  @Bean //Part 2
  public RestTemplate restTemplate() {
   return new RestTemplate();
  }*/
}

CustomerServiceApplication

package com.onlyfullstack.customerservice;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

@SpringBootApplication
@EnableDiscoveryClient
public class CustomerServiceApplication {

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

7. Add below link to accounts-service and customer-services application.properties files
account–service -> application.properties
Remove or comment the static entries of service.ribbon.listOfServers

server.port=8100
spring.application.name=account-service

#Part 4
#customer-service.ribbon.listOfServers=http://localhost:8200,http://localhost:8201

#Part 5
eureka.client.service-url.default-zone=http://localhost:8761/eureka

customer-service -> application.properties

server.port=8200
spring.application.name=customer-service

eureka.client.service-url.default-zone=http://localhost:8761/eureka

8. Now start the accounts-service with default port specified in properties file and the start customer-services on 8200 and 8201 ports. We have already discussed on starting same application on two different ports in last tutorial. Please make sure that the eureka-naming-service is up so that rest of the services will register themselves on it.

9. Lets see eureka console after starting all the projects

10. Now with the help of eureka naming server we can dynamically register the services and retrieve the response.

Source Code
Download source code of microservice with spring cloud from below git repository :

Lets go to our next tutorial where we will discuss