Angular + Spring JPA + PostgreSQL example | Angular 4 Http Client - Spring Boot RestApi Server

https://grokonez.com/spring-framework/spring-mvc/angular-4-spring-jpa-postgresql-example-angular-4-http-client-spring-boot-restapi-server

Angular + Spring JPA + PostgreSQL example | Angular 4 Http Client - Spring Boot RestApi Server

In this tutorial, grokonez shows you Angular 4 Http Client & Spring Boot Server example that uses Spring JPA to interact with PostgreSQL and Angular 4 as a front-end technology to make request and receive response.

Related Posts:

• How to use Spring JPA with PostgreSQL | Spring Boot
• Spring JPA + PostgreSQL + AngularJS example | Spring Boot
• How to use Angular Http Client to fetch Data from SpringBoot RestAPI – Angular 4
• How to use Angular HttpClient to POST, PUT, DELETE data on SpringBoot Rest APIs – Angular 4

Updated:

• Spring Boot + Angular 6 example | Spring Data JPA + REST + PostgreSQL CRUD example

I. Technologies

– Java 1.8
– Maven 3.3.9
– Spring Tool Suite – Version 3.8.4.RELEASE
– Spring Boot: RELEASE
– Angular 4

II. Overview

1. Spring Boot Server

For more details about Spring JPA - PostgreSQL, please visit:
How to use Spring JPA with PostgreSQL | Spring Boot

2. Angular 4 Client

For more details:

• About Angular 4 Routing: How to work with Angular Routing – Spring Boot + Angular 4
• About Angular Http Client to GET/POST/DELETE:
• How to use Angular Http Client to fetch Data from SpringBoot RestAPI – Angular 4
• How to use Angular HttpClient to POST, PUT, DELETE data on SpringBoot Rest APIs – Angular 4

III. Practice

1. Project Structure

1.1 Spring Boot Server

• Class Customer corresponds to entity and table customer, it should be implemented Serializable.
• CustomerRepository is an interface extends CrudRepository, will be autowired in CustomerController for implementing repository methods and custom finder methods.
• CustomerController is a REST Controller which has request mapping methods for RESTful requests such as: getAll, postCustomer, delete, findByLastName.
• Configuration for Spring Datasource and Spring JPA properties in application.properties
• Dependencies for Spring Boot and PostgreSQL in pom.xml

  1.2 Angular 4 Client

  

In this example, we focus on:

• 4 components: customers, customer-details, create-customer, search-customer.
• 3 modules: FormsModule, HttpModule, AppRoutingModule.
• customer.ts: class Customer (id, firstName, lastName)
• data.service.ts: DataService for Http Client methods
• proxy.conf.json for integrating Angular Client with Spring Boot Server.

https://grokonez.com/spring-framework/spring-mvc/angular-4-spring-jpa-postgresql-example-angular-4-http-client-spring-boot-restapi-server