Kafka : We need streaming because we need to backup data, we need to monitor or detect abnormalities of our system. Sometimes we have to create new streams from the original streams. Or according to our business needs, we drip feed events into columnar or NoSQL databases. There are a variety of…

Authentication is the process of verifying identity. Authorization is the process of giving the user permission to access a specific resource or function. Three popular identity protocols, namely, OAuth Open Authorization 2.0 (OAuth 2.0), OpenID Connect (OIDC), and Security Assertion Markup Language 2.0 (SAML). OAuth 2.0: Open Authorization allows access…

I know that Quantum Computing and its concepts are very difficult to understand. And my aim here is to look at some basic concepts with simple code snippets. As a developer, we don’t need to understand the implementation details of the algorithm or the mathematics behind them. But in my…

Domain Driven Design is about seeing the big picture. It provides simpler communication and more flexibility. It is an object-oriented approach. DDD can be used both for large and small-scale software development projects. Some terminologies are important for this software design approach. …

For web development, we used the Dispatcher Servlet as a gateway that maps the requests to the handlers. And it uses the servlet API and containers which means that for each of our requests the resource is blocked. That’s why we need a bigger thread pool and more resources for…

GoLang is not a new technology and it doesn’t offer new features. It is not object-oriented, no inheritance, no method overloading, and no exception handling… What makes go a good choice is; that it is best suited for system programming. Also when writing light-weighted microservice architecture, go is widely preferred…

Containerization is a packaged software, with all the necessary components that will make it work properly. The components can be listed as frameworks, dependencies, and related configuration files. The container is not a virtual machine as the virtual machine has a complete operating system. …

GraphQL can be defined as an open-sourced query language, that API consumers can use when asking for data. It was first developed by Facebook, according to the necessities, and now it is governed by the GraphQL Foundation. Pinterest, Twitter, Airbnb, and GitHub are other companies that use the technology. It…

In the past, we used to develop applications as monoliths. The components were tightly coupled, and they all ran in a single computer. Scaling the application vertically was possible, but it wasn’t on horizontally. According to the needs of applications (high availability, increasing client numbers) monolith applications were divided into smaller…