kiduskebede / labone

Spring boot Rest API implementation, DTO, service layer and domain model.

labone

Spring boot Rest API implementation, DTO, service layer and domain model.
LAB 1

This lab you will create a spring boot application from scratch. This will help you practice more and get a better grip of designing a n-tier web application. You should implement the following: 1- Make a domain model using the domain model. public class Post {

long id;
String title;
String content;
String author;

}

2- Make a repository with a fake database (using an ArrayList). This database will hold the Posts. 3- Make a service layer that will inject the repository. 4- Make a RestController that will inject the service and respond to the following requests. a. GET localhost:8080/posts/  This should retrieve all the posts in the database. b. GET localhost:8080/posts/1  This should retrieve the post with id = 1. c. POST localhost:8080/posts/  This should create and save a new post.

Note:

• 1 is just an example, the actual path should ask for ‘id’
• Make sure all your data are passed with Dtos
• Follow the n-tier architecture

Optional

d. DELETE ocalhost:8080/posts/1  This should delete the post where id = 1. e. UPDATE localhost:8080/posts/1  This should update the post where id = 1.

a. Make another version of your api using a ‘customized header’ that will retrieve another version of the Post domain model, as the following: b. Apply the ModelMapper when you are passing your dtos c. Create a filter endpoint that will retrieve all Posts made by an ‘author’ (query parameter) – You may apply any standard if it is structured and manageable.

public class PostV2 {

long id;
String title;
String content;
String author;

} Make sure you execute these requests using postman.