msa

Practical-2- Create a simple microservice using spring boot

package com.example.Microservices_demo;

import org.springframework.boot.SpringApplication;

@SpringBootApplication

public class MicroservicesDemoApplication {

public static void main(String[] args) {

  SpringApplication.run(MicroservicesDemoApplication.class, args);

}

}

Practical-3- Implement Restful APIs in microservice

package com.example.Microservices_demo.demo;

import org.springframework.web.bind.annotation.GetM@apping;

import org.springframework.web.bind.annotation.RestController;

@RestController

public class MyController {

  @GetMapping(“/home”)

public String home() {

 return “This is home page”;

}

}

Practical-4- Implement Synchronous Communication using REST

 

package com.example.Microservices_Demo.demo;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.http.HttpMethod;

import org.springframework.http.ResponseEntity;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.PathVariable;

import org.springframework.web.bind.annotation.RestController;

import org.springframework.web.client.RestTemplate;

@RestController

public class mycontroller {

public String home() {

@Autowired

private RestTemplate restTemplate;

@GetMapping(“/{id}”)

public ResponseEntity<String>getUserDetails(@PathVariable(“id”) String id) {

ResponseEntity<String> result=restTemplate.exchange(“http://localhost:8081/salary/name”+id,HttpMethod.GET,null,String.class);

ResponseEntity<String> result = null;

System.out.println(“====”+result.getBody()+”==”);

return result;

}

}

package salary;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.PathVariable;

public class MyController {

@GetMapping(“/{id}”)

public String getSalary(@PathVariable(“id”) String id) {

if(id.equals(“User_1”))

return “RS 7000”;

return id;

}

}

 

Practical-5- Set up and configure a service registry(eg- eureka,consul)

package com.example.registry_demo;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;

@SpringBootApplication

@EnableEurekaServer

public class EurekaDemoApplication {

public static void main(String[] args)

{

SpringApplication.run(EurekaDemoApplication.class, args);

}

}

spring.application.name=registry_demo

server.port=8761

 

Practical-6- Implement client-side service discovery in microservice

package com.example.pract6;

import org.springframework.boot.SpringApplication;

@SpringBootApplication

@EanbleEurekaServer

@EnableDiscoveryClient

public class PractApplication {

public static void main(String[] args) {

SpringApplication.run(Pract6Application.class, args);

}

}

 

Practical-7- Implement an API Gateway using zuul or spring cloud gateway

package com.example.pract8;

import org.springframework.boot.SpringApplication;

@SpringBootApplication

@EnableDiscoveryClient

@EnableEurekaServer

public class Pract8Application {

public static void main(String[] args) {

SpringApplication.run(Pract8Application.class, args);

}

}

 

eureka:

client:

serviceUrl:

defaultzone: http://localhost:8761/eureka/

 

 

 

Practical-9- set up centralized configuration management using spring cloud config or consul

Practical-10- Externalize microservice configuration and manage them centrally

package com.example.pract_9;

import org.springframework.boot.SpringApplication;

@SpringBootApplication

public class Pract9Pract9Application {

public static void main(String[] args) {

SpringApplication.run(Pract9Application.class, args);

}

}

 

spring:

colude:

config:

server:

git:

url:https://github.com/Namita2002/config-repo

application:

name: config-server

server:

port:9001

eureka:

client:

serviceUrl:

defaultZone: htpp://localhost:8761/eureka/