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…

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…

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. DDD is an important design practice that helps…

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…

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…

Representational state transfer is the software architecture used for web services. RESTful web services provide computer systems and internet, work together. According to the rest, API clients and servers are separated from each other. The server doesn’t keep any information about the client, so it’s stateless. They have a uniform…

It’s like JSON but fast and small. That is how MessagePack is described by MessagePack. It has an easy setup and usage. Decoding for a single operation is faster than JSON about 1 ms. We can get benefit from MsssagPack especially when we are working with microservices Redis, FluentD and…