A gentle introduction to Monads
def unit: A → F[A] We need Map functionality, that allows us to apply A → B on the A type inside box F def map: F[A] → (A → B) → F[B] We need a Flatten functionality that allows us to unpack a type A inside 2 boxes F. def flatten: F With these [...]
The ins and outs of GraphQL: with Java and Spring
com.graphql-java graphql-spring-boot-starter 5.0.2 com.graphql-java graphql-java-tools 5.2.4 Besides that, we need to add at least one GraphQL schema file (with the .graphqls file extension). This will be picked up automatically by the Spring Boot starter, as long as the file or files are part of the classpath. Next, we need to define one or more Spring beans [...]
Domain-Driven Design
Stefan Borghys Role Stefan Borghys has been active as a Java Software Crafter for some time. He has a solid passion for technology and engineering, full Stack software development and software architecture.
The ins and outs of GraphQL: Syntax
type Query { students: [Person] student(id:ID!): Person } type Person { id:ID! firstName: String lastName: String fullName: String, dateOfBirth: Date, picture: Url, address: Address } type Address { city: String street: String postalCode: String zipCode: String @deprecated(reason: “Use ’postalCode’.”) } scalar Date scalar Url Let’s start by unpacking the first part of that: Type Query represents the […]
Breaking away from framework lock-in with Web Components
In this blog post we'll have a look at how Web Components can help in breaking away from framework lock-in.
The ins and outs of GraphQL: Context
In this blog post we'll put GraphQL in its historical perspective and wider content, and will discuss its general pros and cons.
Cloud native the way to go?
Michel Schevernels Software Crafter Michel Schevernels holds a Master's degree in Applied Computer Science from KU Leuven. Michel is currently working at Ravago in Arendonk, where he collaborates on the development of several Java applications.
Quarkus: why, how and what?
Securing your Spring apps with KeyCloak
org.keycloak keycloak-spring-boot-starter And also add the dependency in the dependency management section: org.keycloak.bomb keycloak-adapter-bomb 3.3.0.Final pom import After this is done, we need to let Spring Security know how to communicate with KeyCloak. To do this, add the following properties to the application.properties file: keycloak.auth-server-url=http://localhost:8080/auth keycloak.realm=ContinuumSecure keycloak.resource=ContinuumDemo keycloak.public-client=true The value we specify in keycloak.resource matches the client [...]
Introduction to reactive programming with Spring
This article, written by Crafter Ward, provides an answer to the following questions: what is reactive programming and what does reactive programming solve?
