Angular – Carsten Spräner https://www.spraener.de Innovationen für Ihren Erfolg Wed, 27 Aug 2025 08:25:25 +0000 de hourly 1 https://wordpress.org/?v=6.8.2 https://www.spraener.de/wp-content/uploads/2023/12/CS-Icon-gruen.png Angular – Carsten Spräner https://www.spraener.de 32 32 10/2023 – Today: Transportation (Rails) https://www.spraener.de/2023/12/11/10-2023-today-transportation-rails/ Mon, 11 Dec 2023 08:09:08 +0000 https://www.spraener.de/?p=2672 Modernization of a productive application to current software components. An existing internal application will be converted to modern and currently secure components as part of the contract.Struts-1, Spring 3, Hibernate 3, and similar outdated systems will be replaced. Stability in production had to be guaranteed under all circumstances for the changeover duration. Details Activities Conception, […]

Der Beitrag 10/2023 – Today: Transportation (Rails) erschien zuerst auf Carsten Spräner.

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Modernization of a productive application to current software components.

An existing internal application will be converted to modern and currently secure components as part of the contract.
Struts-1, Spring 3, Hibernate 3, and similar outdated systems will be replaced. Stability in production had to be guaranteed under all circumstances for the changeover duration.

Details

  • Integrating AWS Secret Manager
  • Creation and implementation of JUnit tests
  • Provide a new implementation of jmockit to run with Java-21
  • Design and implement the infrastructure for automatic integration tests with selenium
  • Replacing outdated APIs with new versions
  • Conversion of the built environment to Docker / docker-compose 
  • General maintenance and care
  • Guaranteeing production stability

Activities

Conception, implementation, and testing of the newly implemented functions with comparative JUnit tests. Converted the backend from Hibernate Criteria API to JPA Builder API and identified software problems during the conversion. Creation of a set of web tests for automatic quality assurance of new versions with HtmlUnit. Introduction of Docker as built and production environment.

IT-Technologies

AWS, Selenium Web Test, Spring 6, Hibernate 5, Docker, docker-compose, Angular, Struts-1 (web-legacy), JUnit, Mockito, JBoss-8, JDK-21, Jenkins

Let’s Talk About Your Project

Just send me a message!

Contact Me

Der Beitrag 10/2023 – Today: Transportation (Rails) erschien zuerst auf Carsten Spräner.

]]> 10/2014 – 02/2022: E-Commerce https://www.spraener.de/2022/02/28/backend-application_ebay/ Mon, 28 Feb 2022 12:28:00 +0000 http://www.spraener.de/?p=328 Backend-Application for eBay-Dealers (Book market). The project creates and maintains a platform for eBay dealers. It simplifies the creation of new offers and tracks the stock with the offers on eBay. It integrates data from eBay, book databases, and distributors. The system was built with Vaadin on a GlassFish container. Later, it was migrated to […]

Der Beitrag 10/2014 – 02/2022: E-Commerce erschien zuerst auf Carsten Spräner.

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Backend-Application for eBay-Dealers (Book market).

The project creates and maintains a platform for eBay dealers. It simplifies the creation of new offers and tracks the stock with the offers on eBay. It integrates data from eBay, book databases, and distributors.

The system was built with Vaadin on a GlassFish container. Later, it was migrated to Spring 2 with microservices running in docker containers.

The project uses SCRUM Methods like backlog, sprints, and DevOps.

Details

  • Importing stock data from the distributor
  • Generating HTML pages and images for the eBay offer
  • Template-driven creation and activation of offers on the eBay platform
  • Reading orders from eBay and synchronizing the stock and affected offers
  • Creating invoices and customer emails
  • Implementing business processes with BPMN (Camunda)

Activities

Create the architecture, Design the application, Maintaining the SCRUM-Backlogs, implementing requirements in a SCRUM-Sprint, Operating and maintaining the application.

IT-Technologies

Vaadin 7, Angular 4+, Java, REST (Jersey), eBay-API (Java), Camunda, Chrome-Extension-API, J2EE-7, Linux OS (SuSE), Jenkins, Gradle, MagicDraw, Docker, Docker-Compose, GIT

Let’s Talk About Your Project

Just send me a message!

Contact Me

Der Beitrag 10/2014 – 02/2022: E-Commerce erschien zuerst auf Carsten Spräner.

]]> 07/2016 – 12/2017: Insurance https://www.spraener.de/2017/12/31/rest-full-angular-architecture/ Sun, 31 Dec 2017 12:52:00 +0000 http://www.spraener.de/?p=334 A REST-Full Angular architecture for insurance calculators. The project creates a new base technology for building insurance calculators with Angular 4 (TypeScript). Communication with the backend via REST-Calls. The system offers highly interactive frontends that validate every calculator field after any value change. The frontend is free of business rules, stateless, highly scalable, and follows […]

Der Beitrag 07/2016 – 12/2017: Insurance erschien zuerst auf Carsten Spräner.

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A REST-Full Angular architecture for insurance calculators.

The project creates a new base technology for building insurance calculators with Angular 4 (TypeScript). Communication with the backend via REST-Calls.

The system offers highly interactive frontends that validate every calculator field after any value change. The frontend is free of business rules, stateless, highly scalable, and follows the REST paradigm.

Details

  • Dialogs as Resources (Dialog-ID, Step-ID)
  • URLs could be given to a third person (support, colleagues)
  • Highly scalable application
  • Micro-Services

Activities

Designing and proofing sustainable architecture.

IT-Technologies

Angular 4+, J2EE 7, Java 8, npm, Angluar-CLI

Let’s Talk About Your Project

Just send me a message!

Contact Me

Der Beitrag 07/2016 – 12/2017: Insurance erschien zuerst auf Carsten Spräner.

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