Suppose our application needs to email in text or HTML format; how can we do that without changing a lot of codes? We use templates!
KrakenD API Gateway – Quick Start With Docker
When we work on Microservices, we deal with many application services that work together to provide an IT service, e.g., an e-commerce solution. Sometimes we
Headstart Framework: Traceability For RESTful Calls
We can start small with the Headstart Framework and leverage its traceability for RESTful calls for Microservices. In a nutshell, traceability means we associate a
Headstart Framework: Identity Access Management (IAM) Service
The general design of the Headstart Framework makes it flexible to implement an Identity Access Management (IAM) service. Then, we could use the service with
Spring Boot Security Tests With PreAuth And WithMockUser
When we implement authorization in Spring Boot with Spring Security, for instance, using the PreAuth annotation, we should never skip automated tests for it. We
Headstart Framework: Flyway and Supported Databases
We have designed the Headstart framework to be database-agnostic to support major database products with the help of Flyway. To achieve this database agnosticism, Headstart
The Number of Entities In a Hibernate Persistence Context
One of my worries with Hibernate was the number of entities accumulating in a Persistence Context. If I were not careful, my codes could potentially
Spring Boot Asynchronous Controller Without External Queues
This post shows how to create an asynchronous web controller or endpoint in Spring Boot (or Spring in general). The codes won’t use external queues
Spring Boot Consul Service Discovery And Client Example
This post shows how to use Spring Boot Service Discovery with Consul. We’ll have two Spring Boot applications. One application registers itself with Consul. It
Chapter 2: Why You Should Learn Programming With Java
In the early 90s, Sun Microsystems developed and released the Java programming language. It is a general-purpose and high-level language that can run on various