Angular SpringBoot CRUD DynamoDB Example
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loveprogramming viết ngày 16/05/2021

https://loizenai.com/angular-springboot-crud-dynamodb/

Angular SpringBoot CRUD DynamoDB Example

In the tutorial, I introduce how to create an "SpringBoot Angular DynamoDB CRUD Example" with POST/GET/PUT/DELETE requests to SpringBoot RestAPIs.

  • Design overview system by Architecture Diagram that includes: Angular Client, SpringBoot RestAPIs, and DynamoDB database.
  • Implement Angular CRUD Client with Angular built-in HttpClient to communicate with server side.
  • Implement SpringBoot RestAPIs that gets data from DynamoDB using Spring Data JPA and returns back data as Json format to requested Angular Client.

You can check out the complete code of the application on this github repository.

Related posts:

Let's start the tutorial "Angular SpringBoot CRUD MSSQL" ->

Overall Angular SpringBoot DynamoDB CRUD Architecture Application

[caption id="attachment_4997" align="alignnone" width="588"]Overall-Architecture-Angular-CRUD-Application-with-SpringBoot-Fullstack-Example Overall-Architecture-Angular-CRUD-Application-with-SpringBoot-Fullstack-Example[/caption]

  • We build backend SpringBoot Application that provides RestAPIs for POST/GET/PUT/DELETE Customer entities and store them in DynamoDB/PostgreSQL database.
  • We implement Angular Application that use Angular HTTPClient to interact (call/receive requests) with SpringBoot backend and display corresponding page view in browser.

Overview SpringBoot CRUD DynamoDB Backend Architecture

[caption id="attachment_4999" align="alignnone" width="635"]SpringBoot-RestAPIs-Backend-Architecture-Design SpringBoot-RestAPIs-Backend-Architecture-Design[/caption]

  • For building RestAPIs in SpringBoot application, we use Spring MVC Web.
  • For interacting with database DynamoDB/PostgreSQL, we use Spring JPA.
  • We implement RestAPI’s URL in RestAPIController.java file to process bussiness logic.
  • For manipulating database’s records, we define a JPA model for mapping field data and use a JPA CRUD repository to do CRUD operation with DynamoDB/PostgreSQL.
  • SpringBoot Project Structure for tutorial "Angular SpringBoot CRUD MSSQL"

[caption id="attachment_1075" align="alignnone" width="549"]Angular SpringBoot CRUD  DynamoDB Example - SpringBoot RestAPI Backend Project Structure SpringBoot Backend Project Structure[/caption]

  • models package defines Customer model and Message response class.
  • repository package defines Spring JPA repository class CustomerRepository to do CRUD operation with database.
  • service package defines a middleware class CustomerServices between Controller and Repository.
  • controller package defines a RestAPI Controller RestAPIController to handle POST/GET/PUT/DELETE request.

Overview Angular CRUD Architecture Design - Angular SpringBoot CRUD DynamoDB RestAPI

[caption id="attachment_1079" align="alignnone" width="647"]Angular CRUD Application - Frontend Design Architecture Angular CRUD Application - Frontend Design Architecture[/caption]

Angular CRUD Application is designed with 3 main layers:

  • Service Layer is used to define Angular Common Services and HttpClient Services to interact with RestAPIs
  • Component Layer is used to define Angular Components to show views in Browser for interacting with Users
  • Router Layer is used to route URLs mapping with the corresponding Angular Components

Angular Project Structure:

[caption id="attachment_1085" align="alignnone" width="796"]Angular SpringBoot CRUD  DynamoDB Example - Angular CRUD Application - Project Structure Angular CRUD Application - Project Structure[/caption]

Angular CRUD Application defines 3 components, 2 services, 1 routers, and 2 data models:

  • Components:
  • add-customer component is used to add a new customer to system
  • list-customer component is used to show all customers on view pages, delete a customer and update a customer
  • message component is used to define a view to show logging message on browser
  • Services:
  • customer.service.ts defines POST/GET/PUT/DELETE HTTP requests to SpringBoot RestAPIs with the built-in Angular HttpClient.
  • message.service.ts defines an array storage to log all messages when Angular CRUD App running
  • Router: app-routing.module.ts defines how to map a corresponding Angular component with an URL.

  • Models:

  • customer.ts defines the main data model of our application.
  • message.ts defines the response data model between SpringBoot and Angular application.

Goal - Angular SpringBoot CRUD DynamoDB RestAPI

  • Add new Customer: from Angular to SpringBoot and save to DynamoDB.

[caption id="attachment_1087" align="alignnone" width="492"]Angular CRUD SpringBoot  DynamoDB App - Add new customers Angular CRUD App - Add new customers[/caption]

  • List All Customers: from Angular calls SpringBoot RestAPI to get customer from DynamoDB.

[caption id="attachment_1088" align="alignnone" width="622"]Angular CRUD SpringBoot  DynamoDB Application - List All Customer Angular CRUD Application - List All Customer[/caption]

  • Details a Customer: from Angular calls get http request from SpringBoot RestAPI to get a record in DynamoDB database

[caption id="attachment_1089" align="alignnone" width="517"]Angular CRUD SpringBoot  DynamoDB App - Details a Customer Angular CRUD App - Details a Customer[/caption]

  • Update a Customer: from Angular calls a put http request from SpringBoot RestAPI to update a record in DynamoDB database.

[caption id="attachment_1090" align="alignnone" width="511"]Angular CRUD SpringBoot  DynamoDB Application - Update a Customer Angular CRUD Application - Update a Customer[/caption]

  • Delete a Customer: from Angular calls a delete http request from SpringBoot RestAPI to delete a record in DynamoDB database.

[caption id="attachment_1091" align="alignnone" width="810"]Angular CRUD App - Delete a Customer successfully Angular CRUD SpringBoot DynamoDB App - Delete a Customer successfully[/caption]

  • Check database records: do a get request from Angular to SpringBoot RestAPI.

[caption id="attachment_1092" align="alignnone" width="627"]Angular CRUD App - Check database records Angular CRUD App - Check database records[/caption]

Video Guide - Angular SpringBoot CRUD DynamoDB Example FullStack DEBUG

Create SpringBoot Application

For building SpringBoot RestAPIs CRUD Application, we need Spring Web, Spring JPA and DynamoDB, so we add below dependencies in pom.xml file:

https://loizenai.com/angular-springboot-crud-dynamodb/

Angular SpringBoot CRUD DynamoDB Example

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