Skip to main content

Posts

Dynamically Loading YAML Files in Spring Boot with Java

In modern applications, configuration plays a crucial role in maintaining flexibility and modularity. Often, we need to load properties from multiple YAML files, organized across nested directories, to ensure scalability and modular configuration. In this blog, we’ll explore how to dynamically load all YAML files from a specific directory structure and merge their properties into a single configuration object. Use Case Imagine we have a configuration directory like this: src/main/resources ├── application.yml ├── configs │   ├── environment │   │   ├── dev.yml │   │   ├── qa.yml │   ├── features │   │   ├── feature1.yml │   │   ├── feature2.yml We want to load all YAML files under the configs directory (including subdirectories), merge them, and make the properties available for use in our Spring Boot application. Implementation 1. Dynamic YAML Loader We will create a utility class to dy...

Generate Java POJOs from JSON Schemas with jsonschema2pojo

  Steps to Generate POJOs Add Dependency Add the jsonschema2pojo plugin to your pom.xml :   <plugin>     <groupId>org.jsonschema2pojo</groupId>     <artifactId>jsonschema2pojo-maven-plugin</artifactId>     <version>1.1.2</version>     <executions>         <execution>             <goals>                 <goal>generate</goal>             </goals>         </execution>     </executions>     <configuration>         <sourceDirectory>${basedir}/src/main/resources/schemas</sourceDirectory>         <targetPackage>com.example.pojo</targetPackage>     </configuration> </plugin> Prepare JSON Schemas Save your s...

Performance Testing a Spring Boot Application with Gatling

In this blog, we’ll explore using Gatling , a powerful load-testing tool, to test a simple Spring Boot application. We'll set up a performance test for a sample REST API endpoint, demonstrate step-by-step how Gatling integrates with the project, and configure a scenario similar to the example discussed earlier. What is Gatling? Gatling is a highly performant open-source load-testing tool. It helps simulate high-traffic scenarios for your APIs, ensuring your application can handle the expected (or unexpected) load efficiently. 1. Setting Up the Spring Boot Project We'll create a Spring Boot REST API with a simple /search endpoint that accepts query parameters: query and category . @RestController @RequestMapping("/api") public class SearchController {     @GetMapping("/search")     public ResponseEntity<String> search(             @RequestParam String query,             @RequestParam String category)...

Top 10 Flavorful Combinations Using Ajwain, Ginger, Tea, and Black Pepper for a Bold, Invigorating Drink

When it comes to exploring unique flavors, there’s a lot of magic in mixing spices and herbs that are both warming and aromatic. Ajwain (carom seeds), ginger, tea, and black pepper are each powerful in their own right but even better together. Whether you’re looking for a soothing, immunity-boosting drink or a bold experiment in flavor, these combinations bring a range of tastes and benefits. Let’s dive into the top 10 best combinations of these ingredients, ranked for flavor and experience. 1. Ginger + Black Pepper + Tea This is a classic combination, bringing together ginger's warmth, black pepper’s spiciness, and the depth of tea. This drink is not only satisfying but also great for boosting immunity and relieving congestion. How to Make It : Boil sliced ginger and a pinch of black pepper in water. Add tea leaves, simmer for a minute, strain, and serve. Add honey for sweetness if you like. 2. Ajwain + Ginger + Tea Combining the earthy pungency of ajwain with fresh ginger and tea...

Monitoring Spring WebFlux Microservices with New Relic

 In this guide, we’ll go over how to monitor a reactive Spring Boot application using WebFlux, with New Relic’s @Trace annotation for detailed transaction tracking, custom parameters, and distributed tracing for complex service chains. Prerequisites A Spring Boot WebFlux application. The New Relic Java agent configured in your application. Enable distributed tracing in newrelic.yml : distributed_tracing:   enabled: true Step 1: Instrument the Main Endpoint Our main entry point is the processRequest endpoint, which handles validation, external API calls, and data processing. Here’s how we add @Trace with dispatcher = true to make it a main transaction. @RestController public class SampleController {     private static final Logger logger = LoggerFactory.getLogger(SampleController.class);     private final SampleService sampleService;     private final WebClient webClient;     public SampleController(SampleService sampleService, WebClient...

How Encryption Happens Between Client and Server: A Step-by-Step Guide

In the modern web, securing the communication between a client (like a browser) and a server is crucial. Every time you visit a website with "HTTPS" in the URL, encryption is happening behind the scenes. But how does this encryption process actually work? In this blog, we'll break down the encryption process step by step, focusing on the TLS/SSL handshake , which is the protocol used to establish a secure connection. We'll also include a flow diagram to make it easier to understand! What is TLS/SSL? Transport Layer Security (TLS) and its predecessor Secure Sockets Layer (SSL) are protocols that provide encryption between a client and a server. They ensure that any data transmitted between the two parties remains confidential and cannot be intercepted or tampered with by third parties. Here’s how the process works: Step-by-Step: How Encryption Happens Between Client and Server 1. Client Hello The encryption process begins when the client (typically a web browser) wa...

Understanding the Advertisement Domain: A Comprehensive Overview Part 2

 The advertisement domain is a complex and dynamic ecosystem that involves various technologies and platforms working together to deliver ads to users in a targeted and efficient manner. The primary goal is to connect advertisers with their target audience, increasing brand visibility, user engagement, and revenue generation. In this blog, we will delve into the different components of the advertisement ecosystem, key concepts like programmatic advertising and real-time bidding (RTB), and provide a practical example to illustrate how it all works. Key Components of the Advertisement Domain The advertisement domain broadly consists of the following components: Advertisers : These are brands or companies that want to promote their products or services through advertisements. They set up ad campaigns targeting specific user segments. Publishers : These are websites, mobile apps, or digital platforms that display ads to users. Publishers monetize their content by selling ad space to ad...