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🚀 Understanding the 5 Layers of Software Whether you're building a simple app or architecting an enterprise system, mastering these five layers is non-negotiable: 🎨 UI (User Interface) – Where users interact with your software. Think HTML, CSS, JavaScript, Tailwind, ReactJS. 🔌 API (Application Programming Interface) – How different systems communicate: REST, GraphQL, gRPC, WebSockets. 🧠 Logic (Business Logic) – The brain of your application. Built with Java, Python, Spring, .NET, and more. 💾 DB (Database) – Where your data lives. MySQL, Postgres, MongoDB, SQLite, CouchDB. ☁️ Hosting (Infrastructure) – The engine that runs everything. AWS, Azure, Google Cloud, Docker, Kubernetes. 💡 Whether you're a beginner or seasoned dev, understanding how these layers work together is essential for scaling your software development career. 👍🏿 Subscribe to our newsletter - https://bit.ly/4m7Oilb #programming #java #springboot #coding #interviewtips

🚀 New Free Course: Spring Boot For Beginners Full Course 2025 - https://lnkd.in/esCV_WgN After working with 100s of Java developers across companies and bootcamps, one thing is clear: mastering Spring Boot is essential for any serious backend engineer. That’s why I just released a complete Spring Boot crash course — designed to help you build real APIs from scratch using: ✅ Spring Boot & Java ✅ RESTful APIs ✅ Spring Data JPA ✅ PostgreSQL (via Docker) ✅ IntelliJ, Maven, and more 🎥 In this video, I walk you through: ✅ Setting up your project the right way ✅ Building REST endpoints step by step ✅ Connecting to a Dockerized Postgres DB ✅ Using JPA to persist and fetch data ✅ Structuring your code like a pro 🔗 Enrol here for FREE certificate including exercises: https://bit.ly/3EvZG9w This is beginner-friendly, yet powerful enough to help you build production-grade applications. Let me know what you think — and feel free to share with someone starting their backend journey! 🙌 #Java #SpringBoot #BackendDevelopment #RESTAPI #Docker #PostgreSQL #SoftwareEngineering #Coding #100DaysOfCode

16 API Terms Every Developer Should Know Whether you're building backend services or just integrating with one, knowing these terms will make your life a whole lot easier: - Resource – The data or service you're working with (e.g. user, file, product) - Request – The call you make to ask the server for something - Response – What the server sends back to you - Response Code – Status of the request (e.g. 200 OK, 404 Not Found) - Payload – The actual data being sent in a request or response - Pagination – Breaking large sets of data into manageable pages - Method – The action: GET, POST, PUT, DELETE - Query Parameters – Filters or options added to the URL (e.g. ?page=2) - Authentication – Proving who you are before getting access - Rate Limiting – Limits on how often you can call the API - API Integration – Connecting two or more services using APIs - API Gateway – A single entry point to handle and route API calls - API Lifecycle – From design to deprecation—every API has a life story - CRUD – The basics: Create, Read, Update, Delete - Cache – Stored data that speeds up future requests - Client – The app or device that’s making the request 👍🏿 Subscribe to our newsletter - https://bit.ly/3x4j5dT #systemdesign #coding #interviewtips

Most Spring Boot developers make these REST API mistakes... Are you one of them? After reviewing dozens of Java backend projects, I noticed the same issues again and again: ❌ Inconsistent resource naming ❌ Wrong HTTP status codes ❌ Exposing entities instead of using DTOs ❌ Missing pagination, validation, and security ❌ No API versioning or documentation So I put together a video showing the Top 10 Spring Boot REST API Best Practices every developer should follow in 2025. ✅ Clean architecture ✅ Proper status codes ✅ Global exception handling ✅ Secure and scalable APIs 🎯 Whether you're a beginner or shipping production apps, this will level up your backend game. 📺 Watch the full video here: https://lnkd.in/eqEhyR2y #java #springboot #coding #interviewtips

🚀 Mastering AWS Just Got Simpler 🔍 Whether you're a developer, architect, or tech enthusiast, navigating AWS can feel overwhelming — but it doesn't have to be. This visual breakdown is the ultimate cheat sheet to understanding AWS services, neatly grouped into categories: ☁️ Compute (EC2, Lambda, Lightsail) 📦 Containers (ECS, EKS, Fargate) 📡 Networking (VPC, Route 53, ELB) 📂 Storage (S3, EBS, Glacier) 🧠 Machine Learning (SageMaker, Comprehend, Bedrock) 🛡️ Security & Identity (IAM, Cognito, GuardDuty) 📊 Analytics (Athena, QuickSight, EMR) 🧮 Databases (RDS, DynamoDB, Aurora) And much more—covering IoT, Blockchain, Multimedia, Dev Tools, and even Web & App Development. ✅ If you're prepping for an AWS certification ✅ Trying to architect cloud-native applications ✅ Or simply want to demystify the AWS ecosystem... This is your go-to visual guide. Bookmark it, share it, and tag someone who needs this today. 💡 🔗 Visit blog.amigoscode.com to learn more and dive deeper. 👍🏿 Subscribe to our newsletter - https://lnkd.in/eXui-Vpc #systemdesign #coding #interviewtips

🚀 Amigoscode 2.0 is LIVE Today marks a new chapter in our journey to empower developers around the world. Over the past few months, my team and I have been working behind the scenes to completely redesign the Amigoscode learning platform — and I couldn’t be more proud to share it with you. What's new in Amigoscode 2.0: ✅ A brand new dashboard with a cleaner, faster UI ✅ Easier access to your courses and progress ✅ Improved mobile experience ✅ Enhanced course structure for smoother learning ✅ And a few surprises still to come 😉 This isn’t just a facelift — it’s a foundation for the future. We’re building the best place for developers to learn real-world skills like Java, Spring Boot, DevOps, and System Design — without the fluff. If you’ve ever taken a course with Amigoscode, thank you. If you haven’t yet — now’s the perfect time. 🔗 Check it out here: https://amigoscode.com Let me know what you think — feedback, bugs, or ideas. We’re just getting started. #Amigoscode #DeveloperEducation #SpringBoot #Java #DevOps #TechEducation #OnlineLearning

Spring Boot Developer Roadmap 2025 Check out the full roadmap here: https://lnkd.in/eVFZiJw6 Mastering backend development with Java and Spring Boot has never been more important. Companies are scaling fast, and Spring Boot remains the framework of choice for building powerful, scalable APIs and microservices. That's why I put together The Ultimate Spring Boot Roadmap for Java Developers (2025 Update) — a complete step-by-step guide to help you: ✅ Solidify your Java fundamentals ✅ Master Maven or Gradle for builds ✅ Understand Spring Core deeply ✅ Build secure, production-grade REST APIs ✅ Integrate databases and migrations ✅ Implement API security with JWT and OAuth2 ✅ Test with JUnit, Mockito, and Testcontainers ✅ Connect to external APIs with WebClient ✅ Advance to Microservices, Kafka, GraphQL, Cloud, and more 👉 Whether you're just starting out or aiming to sharpen your skills, this roadmap is built to guide you through real-world backend development using the latest tech stack. 👍🏿 Subscribe to our newsletter - https://lnkd.in/eXui-Vpc #springboot #java #coding #interviewtips

7 Software Architecture Patterns Every Engineer Should Know Choosing the right architecture can make or break your application. Whether you’re building a small MVP or scaling an enterprise system, architecture matters. Here’s a quick breakdown of 7 key patterns: - Layered Architecture Also called n-tier. Separates concerns into layers: presentation, business logic, persistence, and database. Easy to understand and implement. - Microservices Breaks down an application into small, independent services. Each service owns its data and can be deployed individually. Scales well but adds complexity. - Monolithic Architecture A single unit that handles all concerns: UI, business logic, and data. Easier to start with but harder to scale and maintain as it grows. - Event-Driven Architecture Services react to events rather than direct calls. Great for real-time systems and loose coupling. Producers emit events, consumers subscribe to them via an event broker. - MVC (Model-View-Controller) Splits an application into three components. Controller handles input, model manages data, view displays data. Popular in web development. - SOA (Service-Oriented Architecture) Applications communicate through a centralized Enterprise Service Bus. Good for large systems where services need to be reused across platforms. Master-Slave One master node delegates work to one or more slave nodes. Useful for replication, database syncing, or workload distribution. Which architecture are you using in your current project? Or better yet—which one do you wish you were using? 👍🏿 Subscribe to our newsletter - https://bit.ly/3x4j5dT #systemdesign #coding #interviewtips

Still confused about SQL JOINS? Whether you're writing complex queries or preparing for a tech interview, understanding how joins work is non-negotiable for working with relational databases. Here’s a quick breakdown of the most important SQL JOINS: 👉 INNER JOIN – Retrieves only the records that exist in both tables. 👉 LEFT JOIN – Gets all records from the left table, even if there’s no match in the right one. 👉 LEFT JOIN with NULL check – Filters only the left table rows that don’t have a match in the right table. 👉 RIGHT JOIN – Gets all records from the right table and matches from the left. 👉 RIGHT JOIN with NULL check – Filters only the right table rows that don’t have a match in the left table. 👉 FULL OUTER JOIN – Returns everything from both tables, whether there’s a match or not. 👉 FULL OUTER JOIN with NULL check – Only returns rows that don’t match on either side. 👍🏿 Subscribe to our newsletter - https://bit.ly/3RDRUNV #sql #coding #interviewtips