Software System එකක හෝ ඕනෑම Application එකක ආරක්ෂාව සහ විෂ්වසනීයත්වය තහවරු කිරීමට නම් මෙම Authentication සහ Authorization යන ක්‍රියාවලි දෙක නිසි ආකාරව සැකසිය යුතුයි. Authentication vs Authorization කියන්නෙ ඇත්තටම මොනවද? මේ දෙක application එකක ක්‍රියාවලි (flow) දෙකක් හෝ features දෙකක් ලෙස සිතන්න. …

Firebase is a backend platform (can be thought of as a backend as a service — baas) for building Web, Android and IOS applications (Multi Platform). It offers a real time no SQL database, different APIs, multiple authentication types and a hosting platform. So, Firebase can power our app’s backend…

The Single Responsibility principle states that any software entity (class, method) should have only one responsibility assigned to it. …

Recently I was tasked with converting a json message to an appropriate one line message segment. Here the json message is originated from a newly created separate machine and is sent to an old legacy system which accepts incoming messages only as a single line segment. To support this integration…

There are a ton of great boilerplates (create-react-app, slingshot, etc) that help you save time and kick-start your app. But most of the time using a boilerplate can be more confusing than setting things up yourself. In this post lets see how we will install everything directly from scratch. first…

Oracle Procedures and Functions can be thought of as subprograms where they can be created and saved within the database as database objects. The basic idea of a function is that it should only do computations (ex: generateId()), but not to change the DB state (no changing the data in…

The nginx web server was mainly created to solve the C10k problem (problems that arise when serving a large no. of clients at the same time). So, as a web server, it can serve your data with blazing speeds. …

Jenkins, one of the most popular open-source CI/CD tools provides you an easy, powerful interface to configure your project workflow. With few clicks and configurations, you are able to create a Jenkins job that could fetch code from Github on various events (PR, Merge, Commit), compile those (build), push or…