Recently I got a chance to learn and use reactive programming in java. I used the spring boot web flux reactive library which uses a project reactor under the hood. basically, the project reactor is a library that has classes that implemented the reactive streams specifications (the actual library is…

Reactive programming is a new paradigm that was introduced recently and it has fast become a very popular topic among software engineers. Before we dive into the topic of the article, let’s first look at the reason behind this popularity and how things were before reactive programming was introduced. Traditional way Let's…

AWS Cloudformation template has a defined structure. basically, a sample template has six top-level sections and we are going to look at that one by one. Also, we can use either JSON or YAML format for this template Before we go to the sections, we need to discuss two important…

Explore AWS CloudFormation — AWS CloudFormation is a coding-based approach to the provision and manages AWS resources as well as third-party resources, which is also defined as infrastructure as code. To simplify the above explanation The above explanation is a little bit complex and may be confusing. Let’s see that in a simplified way to understand. Let’s imagine a…

What is Mongock? Mongock is a coding-based approach to manage and apply database schema changes to MongoDB databases using Java language. Why do we need a database version control? Usually, software applications will be developed with different team members in different environments like DEV, QA, PROD. As a version control for the code of this application, git will be used, but…

What is OAuth2 Basically OAuth2 is a authorization mechanism. It is a industry-standard protocol for authorization. The well defined definition is to describe OAuth2 is OAuth 2 is an authorization framework that enables applications to obtain limited access to user accounts on an HTTP before going into deep, let’s look what is the…

What is serverless? Actually what is serverless? does it mean there aren’t any servers to run an application? the answer is no, there are servers to run our applications but we don’t want to worry about it and we don’t need to manage those servers, someone will do that for us. …

What is Docker Docker is an OS-level virtualization software platform for developing, running, deploying and finally shipping software applications. it provides the ability to run a software application in a isolated environment called a container. But Why ? Think you are a team member of a software application development team or a individual developer. and you…

I did my internship as a trainee software engineer at CodeGen International (pvt) ltd which is a leading and innovating software company in SriLanka. In that internship period, I learned many technologies, strategies as well as best practices related to software developing. …