Overview Pattern matching is one of the most powerful features introduced in the recent versions of java. It helps us remove the redundant type casting. In this post, I will cover the key aspects of pattern matching with examples. Let’s get started. What is pattern matching? When talking about pattern matching in java, the first … Read more
Overview If you have tried setting auto-index-creation in spring data mongodb without success, like this: Then this post will show you how to work around this. Let’s get started. Enable auto index creation in MongoDB First, let’s consider this document Here, I defined an unique index for my document named rate_limit_config_service_name but when the application … Read more
Overview When connecting from frontend to backend, you may encounter the infamous CORS error I will not explain to you what CORS error is (there are plenty of good resource for that). I only show you how to configure a filter in Spring Boot so you can fix this error and go back to work … Read more
Overview Do you love writing commit messages? If so, you can return to your development now 😛 For those of us who doesn’t enjoy writing commit messages very much, there is a solution. Let me walk you through how to commit without you writing the commit message but let the AI do that. I posted … Read more
Java provides several ways to initialize a HashMap directly, making your code more concise and readable. In this blog post, we’ll explore different methods to create and populate a HashMap in one go using Java. 1. Using Map.of() (Java 9+) For small, immutable maps, you can use the Map.of() method: This method is convenient but … Read more
TLDR; If you set connection timeout, you also need to explicitly set read timeout (to 0 for infinite timeout) Overview Setting timeout for HTTP connection is something most developers don’t do. However, it is vital you set this configuration right when you have to. Connection Timeout and Socket Timeout In layman’s terms, connection timeout governs … Read more