Futures vs CompletableFutures vs RxJava vs ReactiveStreams of Java9… Let’s deep dive on how to execute “part of your code async” during synchronous request processing… For many use cases, when you have to perform some compute intensive work, or make network calls or execute some parallel processing, we tend to…

Convention for proto3 If you’re using protobuf as a serializer. Protobuf prefers structured data, with stricter backward compatibility and very performant at transfers over the network. Protobuf and gRPC is a powerful combination, what follows is a set of recommended best practices Protobuf has 3 major types of components: Service…

Containerized Application Orchestrator… Kubernetes (K8s) is an open-source (created by google) system for automating deployment, scaling, & management of containerized applications Why Kubernetes?

The blog is composed of 3 parts. Reminds the basics. Focuses more on the hybrid approach explanation Shows a sample implementation. Orchestration vs choreography Definition of orchestration, in the data/business entity processing pipelines, an orchestrator is a component responsible for managing the nodes and processes. It’s the single master who knows which pipeline…

Basic mistakes while mocking… You might get NullPointerException exception when you try to mock object in your tests. This article is a short list of 3 most common reasons why this might be happening. Here is a working example of FooRepositoryTest class for reference: @RunWith(MockitoJUnitRunner.class) public final class FooRepositoryTest {…

“Picking the Right Branch-Merge Strategy…” Irrespective of version control tool you use, a right branching strategy helps developers team to collaborate easily, while not allowing disruptive or code-breaking changes by one developer impacting another. Following are strategies to explore. Trunk-based Development (No Branching) As name suggest there’s one trunk, where all development happens. This…

Story covers Differences & Commonalities To start with simpler relatable example, lets find differences and similarities among the class of theses objects: pets, dogs, tails/legs, owners. Below are the observable relationships: Association - Owner love pets, owner feed pets; in return pets pleases and loves owner Aggregation / Composition …

For mid to slightly high scaled organisations Our development philosophy revolves around mainly two aspects: Agility Quality Below document is a derivative of this assumption. The document does not intent to cover all possible use-cases, and can never do so either. …

Typically engineers’ feeling is — I write computer’s language, not human dialect. How true is this statement? For a programmer reliable documentation is always a must. The presence of documentation helps keep track of all aspects of an application and while documenting you realise what’s in your head making sure…