Microservices is an increasingly popular architecture pattern that structures an application as a collection of small, independent services that communicate with each other using a lightweight protocol, typically HTTP/REST. One of the biggest advantages of microservices is scalability. Each microservice can be deployed, scaled, and updated independently, making it easy…

JavaScript is a single-threaded programming language, which means it can only process one task at a time. However, it can handle many tasks at once by using an event loop. The event loop is a mechanism that allows JavaScript to execute non-blocking code in a synchronous manner. It works by…

In the last post, we spoke about how libuv provides a thread pool for offloading work to be done on very expensive function calls. In this post, we’re going to detect the presence of these four threads that are created for us automatically. Let’s copy and paste the PBKDF2 hashing…

You may have read online from time to time that node is single-threaded. People say node is single-threaded. However, that’s not the full story. The truth is much more complicated. So in this section, we’re going to start to investigate whether or not node is truly single-threaded. When we start…

In this post, we will discuss how Node.js actually works internally. Node.js has a collection of dependencies internally that actually executes our code. The two most important ones are the V8 and libuv projects. V8 is an open-source project by Google. The project enables the execution of javascript outside of…

Push notification is a bit tricky to understand especially if you are a beginner. In this post, we will go through every step to gain access to the notifications we receive in our app so stay with me. First of all, you need to set up a firebase project. Copy…

Cloud functions are known as serverless computing. But serverless is not actually serverless. A cloud function actually is a Node js server that is already pre-configured and sitting there for you on demand. The reason it is called serverless is that you don't have to do the normal stuff you…

Before you get started, you need to know two things. Docker Container Orchestration I briefly talked about docker on Docker for the absolute beginner post. Container Orchestration We learned about containers and let us say we now have our application packaged in a docker container. But, how do we run…

In this post we will be talking about advanced docker concepts. We are going to see how docker stores data and how it manages file system of containers. Please read Docker for the absolute beginner post before you continue if you haven’t already. File systems When you install docker on a system…