Spring Boot – Carsten Spräner https://www.spraener.de Innovationen für Ihren Erfolg Wed, 13 Dec 2023 15:34:07 +0000 de-DE hourly 1 https://wordpress.org/?v=6.4.3 https://www.spraener.de/wp-content/uploads/2023/12/CS-Icon-gruen.png Spring Boot – Carsten Spräner https://www.spraener.de 32 32 04/2022 – 10/2023: Department of Justice https://www.spraener.de/2023/10/31/04-2022-10-2023-department-of-justice/ Tue, 31 Oct 2023 18:04:40 +0000 https://www.spraener.de/?p=2632 Implementing the backend of a lawsuit management software. The German Department of Justice initiated the project and aims to implement nationwide software to manage lawsuits. My task was to design, implement, and test the backend part of this system. Details Activities Design and developing µService endpoints with Spring Boot in consultation with the frontend team. […]

Der Beitrag 04/2022 – 10/2023: Department of Justice erschien zuerst auf Carsten Spräner.

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Implementing the backend of a lawsuit management software.

The German Department of Justice initiated the project and aims to implement nationwide software to manage lawsuits. My task was to design, implement, and test the backend part of this system.

Details

  • Developing with IntelliJ and Java-17
  • API-Specification with openAPI and implement the backend with Spring Boot
  • Running with Spring Boot
  • Organized with Jira and GitHub
  • Build with maven and Jenkins pipeline  

Activities

Design and developing µService endpoints with Spring Boot in consultation with the frontend team. Test the endpoints with JUnit to get a test coverage above 90%. Describing backend integration tests with IntelliJ HTTP-component.

IT-Technologies

µServices, Spring Boot 2, Java 17, Groovy, Docker, Docker-Compose, Swagger, Lombok, MapStruct, JBoss, J2EE, MySQL/MariaDB, JUnit, Mockito, maven, GIT, Lucene 3.8 / 9.2.0, IntelliJ, Eclipse, Jira, Confluence, GitLab, Jenkins, RedMine

Let’s Talk About Your Project

Just send me a message!

Contact Me

Der Beitrag 04/2022 – 10/2023: Department of Justice erschien zuerst auf Carsten Spräner.

]]> Using KeyCloak on your local machine https://www.spraener.de/2023/07/25/using-keycloak-on-your-local-machine/ Tue, 25 Jul 2023 18:56:03 +0000 http://www.spraener.de/?p=555 Every project with more than one user must have some authentication and authorization. These days, there is a quite handy and easy to user solution for user management that comes in a project called [KeyCloak](https://www.keycloak.org/ "KeyCloak"). KeyCloak provides all necessary functionality like user registration, sign-in, and sign-in via Google, Facebook, and whatnot, all with support for modern standards like OICD.

Der Beitrag Using KeyCloak on your local machine erschien zuerst auf Carsten Spräner.

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Every project with more than one user must have some authentication and authorization. These days, a quite handy and easy-to-use solution for user management comes in a project called KeyCloak. KeyCloak provides all necessary functionality like user registration, sign-in, and sign-in via Google, Facebook, and whatnot, all supporting modern standards like OICD.

KeyCloak is sponsored by Red Hat and is very well maintained. Regular updates and support for new technologies have been seen in recent years. KeyCloak could be a good choice for every company if it trusts open-source projects.

In this post, I describe how to install KeyCloak on a local machine for development purposes. The Version described here is Version 22.0.1.

Downloading and starting KeyCloak

KeyCloak comes in a zip or tar file and can be downloaded from here: https://www.keycloak.org/downloads

If you download the zip file, you can extract it wherever you want and start KeyCloak by:

> cd KeyCloak
> bin/bc.sh start-dev

Attention I tried it with the most recent version 22.0.1 and got an error. KeyCloak 21.1.1 works fine.

After start-up KeyCloak is reachable under the URL

http://localhost:8080

When you first visit this page, KeyCloak will ask you to set an administrator username and password:

file

Enter the administrator’s username and password, and you will see the new Welcome screen:

file

Now, you can navigate to the administrator console via the link. Enter
the credentials as specified above, and you will see the main page of KeyCloak:

file

YEP! That’s it. You set up a KeyCloak instance for your personal development.

What’s next

In the next posts, I will set up a realm for development. A Real is an area where users, roles, groups, and clients are managed.

After that, I will bring KeyCloak into a cloud environment with docker-compose, NgInx, and MariaDB.

Some Notes

  • Do not use this setup method for production. For production, you have to do a lot more.
  • I tried the new Version 22.0.1 of KeyCloak and got an error during the start procedure: 
    ERROR: Failed to run 'build' command.
ERROR: Name is too long
For more details run the same command passing the '--verbose' option. Also you can use '--help' to see the details about the usage of the particular command.

This error is still under investigation…

, ,

Let’s Talk About Your Project

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Der Beitrag Using KeyCloak on your local machine erschien zuerst auf Carsten Spräner.

]]> 06/2023: IT Service Industry https://www.spraener.de/2023/06/30/keycloak_saml-provider/ Fri, 30 Jun 2023 15:23:00 +0000 https://www.spraener.de/?p=2808 KeyCloak as SAML-Provider for a Spring-Boot Application. In preparation for a workshop, a Spring-Boot application was created with KeyCloak as the identity provider. A user can log into the application via SAML or a Magic Link. The Magic Link is sent to the user by mail. Details Activities Implementation of the entire prototype. Creation of […]

Der Beitrag 06/2023: IT Service Industry erschien zuerst auf Carsten Spräner.

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KeyCloak as SAML-Provider for a Spring-Boot Application.

In preparation for a workshop, a Spring-Boot application was created with KeyCloak as the identity provider. A user can log into the application via SAML or a Magic Link. The Magic Link is sent to the user by mail.

Details

  • Implementing a Spring-Boot application with public and protected areas and using the SAML protocol
  • Implementation of a KeyCloak plugin for Magic Link creation
  • Connection of the application to a KeyCloak instance
  • Configuration of KeyCloak as SAML provider and creation of a realm for the prototype
  • Creation of Magic Links for direct login into the protected area
  • Creation of multi-layer Dockerfiles for easy operation on any Docker-enabled system
  • Deployment of the whole system via docker-compose, including database, KeyCloak, Spring boot application

Activities

Implementation of the entire prototype. Creation of Dockerfiles to build and run the systems. Deployment of the entire system via docker-compose. Availability via GitHub.

IT-Technologies

Java 17, Spring-Boot 3, KeyCloak, Docker, docker-compose, SAML, OIDC, MagicLink

Let’s Talk About Your Project

Just send me a message!

Contact Me

Der Beitrag 06/2023: IT Service Industry erschien zuerst auf Carsten Spräner.

]]> 04/2014 – 12/2016: Insurance https://www.spraener.de/2016/12/31/combined-calculator/ Sat, 31 Dec 2016 12:58:00 +0000 http://www.spraener.de/?p=341 Combined calculator for life insurance. The customer wanted a calculator for several products in the life insurance domain. The calculator must integrate several systems and present them as one new product. Thus, all contracts can be sold as one product. Details Activities Responsible for the architecture, leading the development team, and optimization of time-critical processes. […]

Der Beitrag 04/2014 – 12/2016: Insurance erschien zuerst auf Carsten Spräner.

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Combined calculator for life insurance.

The customer wanted a calculator for several products in the life insurance domain. The calculator must integrate several systems and present them as one new product. Thus, all contracts can be sold as one product.

Details

  • Designing a flexible architecture
  • Integrating external providers via web services
  • Integrating a product model (VP/MS)
  • Database persistence
  • Introducing new developers to maintain the system

Activities

Responsible for the architecture, leading the development team, and optimization of time-critical processes.

IT-Technologies

Java 8, Spring-Boot 3, JPA 2.0, UML2, Webservices (JAXB), J2EE 6, Parallel Computing

Let’s Talk About Your Project

Just send me a message!

Contact Me

Der Beitrag 04/2014 – 12/2016: Insurance erschien zuerst auf Carsten Spräner.

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