When developing reactive applications with Spring Boot and using the WebClient to make web requests, custom error handling is an essential aspect of ensuring robust and user-friendly applications. In this article, we’ll explore how to use the onErrorMap method with the WebClient to handle and customize error responses. Error Handling with onErrorMap The onErrorMap…

Java Code with Streams: A Comprehensive Guide Java Stream API provides a powerful way to process sequences of elements, such as collections or arrays, in a concise and expressive manner. It allows you to perform operations on data with ease, making your code more readable and maintainable. …

Simplify Your Java Code with Records Records are designed to make working with data more concise and straightforward. In this article, we’ll explore the concept of records and how they can simplify your Java code, including the ability to declare methods within records. What Are Records? Records, introduced in Java 16, are a new type of class that’s tailor-made…

Java Stack Memory: Stack memory is used for storing local variables and function call information. It holds the values of primitive type variables, as you mentioned, but it also stores references to objects. Each thread in a Java application has its own stack, which is used for method invocations and managing local variables. …

@DataJpaTest @BeforeEach Spring Boot — Unit Testing Repository Layer In this blog describe how to to perform unit test for repository layer. Well organize coding example is given is the below GitHub repository.Please check out the repository. GitHub - MohosinMiah/Spring-Boot--Unit-Testing-Repository-Layer: Spring Boot - Unit Testing… Spring Boot - Unit Testing Repository Layer. Contribute to MohosinMiah/Spring-Boot--Unit-Testing-Repository-Layer…github.com

Monitor your API endpoints using Zipkin in a Spring Boot 3 application To implement Zipkin in a Spring Boot application and run it using Docker Compose, follow these steps: Step 1: Create a docker-compose.yml file with the following contents: services: zipkin: image: ghcr.io/openzipkin/zipkin-slim:${TAG:-latest}…

In Java, the access modifier of a method in an implementing class must be at least as accessible as the corresponding method in the interface. This means that if a method is declared as public in the interface, the implementing class must also declare it as public. We cannot define a method as private in a class that implements an interface if the method is declared as public in the interface. When a class implements an interface, it must provide a public implementation for all the methods declared in the interface.

📝 ModelMapper is a powerful library in Spring Boot that simplifies the process of mapping objects from one type to another. — Why Map? Applications often consist of similar but different object models, where the data in two models may be similar but the structure and concerns of the models are different. Object mapping makes it easy to convert one model to another, allowing separate models to remain segregated.

There are many design patterns that can be used in PHP, but here are some of the most commonly used ones: Singleton pattern: This pattern restricts the instantiation of a class to a single object. It can be useful when you need to ensure that only one instance of a particular object…