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Overview Redis is an in-memory data structure store that is often used as a database, cache, and message broker. There are several benefits to using Redis, including: In this post, we are going to discuss the different use cases of Redis in software systems. Before you start, if you want to start a Redis instance … Read more
In computer science, the CAP theorem states that it is impossible for a distributed computer system to simultaneously provide more than two of the following three guarantees: In other words, the CAP theorem states that it is impossible to simultaneously guarantee consistency, availability, and partition tolerance in a distributed system. This means that in the … Read more
Overview There are times you need to do some start-up work when your Spring application launch. One of the methods is to use the CommandlineRunner interface. In this post, I’m going to show you how to use this interface to run startup tasks with flexibility. Let’s get started. Meet the CommandlineRunner interface The CommandlineRunner interface … Read more
Overview There are times you need to generate a self-signed certificate for your website. One example is for websites in a development environment. My story is recently, I need to set up a Keycloak instance on the internet. Recent versions of Keycloak require HTTPS to log in to admin. In this post, I’m going to … Read more
Overview This should be an Udemy feature where people can search through video titles AND transcripts. Sadly such features are not available. I’m considering making a browser extension for this but for now, this is a quick hack. How to print all sections’ titles To print all the sections’ titles, type the following in the … Read more
Overview Recently, I changed my laptop from Windows to a Mac. As many times setting up a new machine, I cloned my repos and installed the IDEs. A problem I encountered that I didn’t in my previous machine is that I cannot push to Github from the command line. And yes, I generated my ssh … Read more