Short feedback cycles during development are essential for your productivity. If you practice TDD you’ll agree on this even more. In the past, I’ve used several IDE plugins to achieve this for developing Jakarta EE applications. All worked but it wasn’t joyful. Adam Bien’s Watch and Deploy was a light at the end of the
Jakarta EE Integration Tests With MicroShed Testing
Integration tests for your Jakarta EE application are essential. Testing the application in a full setup will ensure all of your components can work together. The Testcontainers project provides a great approach to use Docker containers for such tests. With MicroShed Testing you get a convenient way to use Testcontainers for writing integration tests for your
#REVIEW: What’s new in MicroProfile 3.1
The third MicroProfile release of 2019 is now available: MicroProfile 3.1. With the last release of MicroProfile 3.0 in June, the MicroProfile community continues with its last release for this year. Both the Eclipse MicroProfile Metrics and MicroProfile Health specification got an update to version 2.1. Even though this release is a rather small one
Jakarta EE and MicroProfile applications with React and PostgreSQL
As now all major application server vendors are Jakarta EE 8 certified, we are ready to start a new era of enterprise Java. Most of the examples on the internet lack a full-stack approach and just focus on the backend. With this post, I want to share a simple full-stack example following best practices with
CDI Tutorial – Introduction to Contexts and Dependency Injection
Dependency Injection (DI) is one of the central techniques in today’s applications and targets Separation of concerns. Not only makes this testing easier, but you are also not in charge to know how to construct the instance of a requested class. With Java/Jakarta EE we have a specification which (besides other topics) covers this: Contexts
JAX-RS Tutorial – Create Jakarta RESTful Web Services
The REST architectural pattern is widely adopted when it comes to creating web services. The term was first introduced by Roy Fielding in his dissertation and describes a way for clients to query and manipulate the resources of a server. With Jakarta RESTful Web Services (JAX-RS), formerly known as Java API for RESTful Web Services,
JSON-P Tutorial – Process JSON data structures
Besides binding and converting JSON from an to Java objects with JSON-B, the Java EE specification (now Jakarta EE) offers a specification to process JSON data: JSON Processing (JSON-P). With this spec, you can easily create, write, read, stream, transform and query JSON objects. This specification is also part of the Eclipse MicroProfile project and provides
JSON-B Tutorial – Convert Java objects from and to JSON
JSON is the current de-facto data format standard for exposing data via APIs. The Java ecosystem offers a bunch of libraries to create JSON from Java objects and vice-versa (GSON, Jackson, etc.). With the release of Java EE 8 and the JSR-367, we now have a standardized approach for this: JSON-B. With the transition of Java
Adding resiliency with MicroProfile Fault Tolerance
With the current trend to build distributed-systems, it is increasingly important to build fault-tolerant services. Fault tolerance is about using different strategies to handle failures in a distributed system. Moreover, the services should be resilient and be able to operate further if a failure occurs in an external service and not cascade the failure and
MicroProfile JWT Auth to secure your applications
In today’s microservice architecture security is usually based on the following protocols: OAuth2, OpenID Connect, and SAML. These main security protocols use security tokens to propagate the security state from client to server. This stateless approach is usually achieved by passing a JWT token alongside every client request. For convenient use of this kind of
