ByVed Maurya
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In this article, we’ll create a microservices architecture using: What is Apache Kafka? Apache Kafka is an open-source distributed event streaming platform used to build real-time data pipelines and streaming applications. 🔧 Kafka is Used For: 💡 Key Concepts in Kafka: Component Description Producer Sends (publishes) messages to Kafka topics…
ByVed Maurya
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In a microservices environment, a single failing service can cascade and cause other services to fail. To prevent this, we use Resilience4j to implement Circuit Breaker patterns that provide graceful degradation and stability. Service Resilience — ensuring that your system remains responsive and fault-tolerant under failure conditions In this tutorial,…
ByVed Maurya
Updated
In a microservices architecture, each service usually has its own endpoint. Managing all these endpoints manually is tedious and error-prone. That’s where Spring Cloud Gateway steps in as a powerful, scalable, and simple solution for routing requests to various services via a single entry point. In this article, you will:…
ByVed Maurya
Updated
In a microservices architecture, services must locate each other without hardcoded URLs. Service Discovery solves this by registering each service with a centralized registry. One of the most popular tools for this in the Spring ecosystem is Netflix Eureka. In this tutorial, you will: Let’s build it step-by-step. 📦 Project…
ByVed Maurya
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🧠 What is Micro-Frontend? Micro-Frontend architecture breaks a frontend app into independent, deployable features owned by separate teams — much like microservices in the backend. Instead of a monolithic React or Angular app, you build small frontends (e.g., dashboard, login, profile) and compose them together. ⚙️ Why Use Webpack Module…
ByVed Maurya
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✅ What is React? React is a JavaScript library developed by Facebook for building user interfaces, particularly single-page applications (SPAs). It’s component-based, declarative, and enables fast UI updates. 🧱 Core Concepts in React 1. Components 2. JSX JSX is a syntax extension for JavaScript that looks like HTML and is…
ByVed Maurya
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Software engineering concepts for software architects revolve around designing scalable, maintainable, and high-performing systems. Key principles include modular architecture, separation of concerns, SOLID and DRY principles, and design patterns like MVC, microservices, and event-driven architecture. Architects must ensure clean code, proper abstraction, and technology alignment with business goals. Emphasis is…
ByVed Maurya
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✅ What is SQL? SQL (Structured Query Language) is a standard language used to communicate with relational databases. It allows you to store, retrieve, manipulate, and manage data stored in tables. 🔹 1. SQL Language Types Language Type Commands DDL (Def. Data) CREATE, ALTER, DROP, TRUNCATE DML (Man. Data) INSERT,…
ByVed Maurya
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🧩 1. Overview of JPA 🏷️ 2. Entity Annotations Annotation Purpose @Entity Marks a class as a JPA entity @Table(name = “table_name”) Optional table name @Id Primary key @GeneratedValue(strategy = GenerationType.AUTO) Auto generation of primary key @Column(name = “col_name”) Customize column mapping @Transient Field not persisted @Lob For large binary/text…
ByVed Maurya
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Java interview preparation should focus on core concepts like OOP principles (encapsulation, inheritance, polymorphism, abstraction), data types, control structures, exception handling, and collections. Understand JVM internals, memory management, garbage collection, and Java 8+ features like streams, lambdas, and functional interfaces. Be confident with multithreading, synchronization, and concurrency utilities. Master important…
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ByVed Maurya
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🎯 Objective In this section, you will learn how to: 🔧 Step 1: Create a Model Class 🔍 Explanation 📦 Step 2: Create a Repository 🔍 Explanation 🧠 Step 3: Create a Service Layer 🔍 Explanation 🌐 Step 4: Create a REST Controller 🔍 Explanation 🚫 Optional: Custom Exception Handling…
ByVed Maurya
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🎯 Objective Learn to validate incoming data using annotations and handle exceptions globally for consistent and informative error responses. ✅ Add Validation Dependency (if not already included) In pom.xml: This enables Java Bean Validation using annotations like @NotNull, @Size, etc. 🧾 Update Product Entity with Validation 🔍 Explanation 🔁 Update…