Realm is a concept in Keycloak that refers to an object managing a set of users along with their credentials, roles and groups. A user in Keycloak belongs to only one realm and the user who logs in to Keycloak will log into that user’s… Read More
Keycloak is an open source software for managing access for any application. It supports many different authentication and authorization standards such as Single Sign-On (basically, we can use our login information for many different applications), OpenID Connect, LDAP, and more … In this tutorial, I… Read More
Previously, when declaring a multi-line text in Java, for example: Welcome to Huong Dan Java My name is Khanh We will usually declare the following: String text = “Welcome to Huong Dan Java \n” + “My name is Khanh”; Result: But from Java 13 onwards,… Read More
The reduce() function in DataWeave 1 and 2 is a function that helps us able to manipulate on the elements of an array and output to the type of data which we want. To do this, the parameters of the reduce() function include the item… Read More
To be able to make authentication and authorization for the requests to the web application, Spring Security must act as an interceptor of these applications. It will intercept and process the requests before those requests are actually processed by the application and return results. In… Read More
The pluck() function in DataWeave 2 is a function used to convert the properties and values of these properties of an object into an array of properties, an array of values and an array of indices of those properties. The syntax of the pluck() function… Read More