Introduction: In today's data-driven world, the ability to efficiently process and analyze large datasets is paramount. Java, being one of the most widely used programming languages, offers powerful tools to tackle such tasks. One of these tools is Java Streams, introduced in Java 8, which provides a functional approach to processing collections of data. In this blog post, we'll explore how we can utilize Java Streams to find the highest salary for each department in a company. Java Streams to Find the Highest Salaried Employee in each Department Imagine we have a collection of em ..read more

Multiple Feign Clients with Different Configurations in Spring In the realm of microservices architecture, communication between services is a crucial aspect. Spring Framework offers several tools to simplify this communication, one of which is Feign. Feign is a declarative web service client developed by Netflix, which simplifies the interaction with HTTP APIs. It allows developers to make HTTP requests to other services with minimal effort by defining an interface with annotations. Multiple Feign Clients in Spring However, what if your application needs to communicate with multi ..read more

Enhancing API Communication with Response Interceptors in Spring Cloud OpenFeign Introduction: In the realm of microservices architecture, seamless communication between services is paramount. Spring Cloud OpenFeign simplifies this process by providing a declarative way to interact with RESTful APIs. However, sometimes we need more than just making requests; we need insights into responses as well. Enter Response Interceptors - a powerful feature in Spring Cloud OpenFeign that allows us to intercept and manipulate responses before they reach their destinations. In this blog post, we'll explore ..read more

Enhancing HTTP Call Monitoring in Microservices with Feign Clients and Micrometer Introduction: In the intricate ecosystem of microservices, efficient monitoring and tracing of HTTP calls are paramount for maintaining performance, diagnosing issues, and ensuring optimal service delivery. In this blog post, we explore how to elevate your monitoring capabilities by integrating Feign clients with Micrometer, a powerful metrics instrumentation library. Feign Clients With Micrometer Why Monitor HTTP Calls? Before delving into the integration details, let's understand why monitoring HTTP ..read more

Handling Feign Exceptions in Spring Boot Using @RestControllerAdvice Handling exceptions is a crucial aspect of developing robust microservices, especially when dealing with communication between services. In Spring Boot applications, Feign clients are commonly used for making HTTP requests to other microservices. However, it's essential to handle exceptions gracefully when errors occur during these communication attempts.  Handling Feign Exceptions in Spring Boot Using @RestControllerAdvice In this guide, we'll explore how to handle Feign exceptions in Spring Boot using @Re ..read more

Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.cloud.netflix.feign.FeignContext' available   When you encounter a NoSuchBeanException related to FeignContext while using `@EnableFeignClients` and `@FeignClient`, it typically indicates that Spring couldn't find a bean of type `FeignContext` to inject where it's needed. This can happen due to various reasons. Here's a step-by-step guide to troubleshoot and resolve the issue: 1. Check Dependency: Ensure that you have the necessary dependencies in your project to u ..read more

As a spring boot developer, evaluating tools like Feign and RestTemplate requires considering various factors including ease of use, performance, scalability, maintainability, and alignment with project requirements. Here's an analysis of the advantages and disadvantages of using Feign over RestTemplate: Advantages of Feign over RestTemplate: 1. Declarative API: Feign allows you to define HTTP client bindings in a declarative manner using annotations, which can make your codebase more readable and maintainable compared to RestTemplate where you typically configure HTTP requests programmatical ..read more

Introduction: Changing the Feign URL dynamically at runtime can be achieved by leveraging Spring Cloud's support for property resolution and dynamic configuration updates. One approach to accomplish this is by using Spring's Environment abstraction along with Spring Cloud Config Server for centralized configuration management. Here's a step-by-step guide on how to implement dynamic URL switching for Feign clients at runtime: 1. Set up Spring Cloud Config Server:    - Configure a Spring Cloud Config Server in your environment. This server will serve as a centralized location for sto ..read more

Spring Cloud: Enhancing Performance with Feign and HTTP Connection Pooling Introduction: In the world of microservices, effective communication between services is paramount. Spring Cloud offers a suite of tools to simplify the development of cloud-native applications. Among these tools, Feign and HTTP Connection Pooling stand out as powerful mechanisms for optimizing service-to-service communication. In this blog post, we'll delve into how Spring Cloud's Feign client coupled with HTTP connection pooling can significantly enhance the performance and scalability of your microservices architectu ..read more

Introduction: In the world of microservices architecture, where communication between services is paramount, developers often rely on robust tools to facilitate interaction. Among these tools, Feign has emerged as a popular choice, offering a declarative HTTP client for easier RESTful service consumption. However, when it comes to using Feign in a Spring-based application, developers are presented with two primary options: Spring Cloud Feign and OpenFeign. While they share a common foundation, there are significant differences between the two, each with its unique advantages and use cases ..read more