Articles Tagged ‘spring’

Identity Management, One-Time-Passwords and Two-Factor-Auth with Spring Boot and Keycloak

Sunday, November 26th, 2017

Communicating with  identity and access management systems is a common task for many web-applications exposing secured resources.

Keycloak is an open source software that provides not also such authorization services but also offers a lot of features from Single-Sign-On, Identity-Brokering, Social-Login, User-Federation, multiple client-adapters up to the administration console or support for protocols like OpenID, SAML, OAuth2, Kerberos and more.

I will demonstrate how to integrate a Spring Boot web application with Keycloak and configure an authentication flow that requires a two-factor-authentication with user credentials and also one-time-passwords. (more…)

Setting up an OAuth2 Authorization Server and Resource Provider with Spring Boot

Sunday, March 13th, 2016

OAuth2 is a frequently used standard for authorization and with Spring Boot it is easy to set up authorization and resource server in no time.

In the following short tutorial I’d like to demonstrate how to set up an OAuth2 authorization server as well as a connected and secured resource server within a few minutes using Java, Maven and Spring Boot.


Integrating Swagger into a Spring Boot RESTful Webservice with Springfox

Wednesday, July 1st, 2015

Spring Boot allows us to create RESTful web-services with ease, Swagger specifies a format to describe the capabilities and operations of these services and with Swagger UI it is possible to explore our REST API with a nice graphical user interface in our browser.

Springfox is a project that aims at creating automated JSON API documentation for API’s built with Spring and is used in the following tutorial to integrate Swagger into a sample application.


Spring 3, Maven and Annotation Based Configuration

Sunday, August 22nd, 2010

There is still the urban myth that using Spring IoC container without thousands lines of XML code isn’t possible – so today we’re taking a look at annotation based configuration with Spring 3 and of course we’re using Maven..