POST vs PATCH in API Development

Spring Boot profiles are great… until your config starts looking like a multiverse of YAML 😅 In this video, I walk through **Spring Boot Profile Groups** and how they help you bundle profiles without summoning chaos from `application.properties`. Less config spaghetti. More sane environments.   More “it works on my machine” energy — but professionally. 🎥 https://lnkd.in/eBWf6ZJ7 #SpringBoot #Java #BackendDevelopment #SoftwareEngineering #Developers #Programming #Microservices #TechTips

💡 Key benefits of using Spring Boot for REST APIs: ✅ Rapid development with minimal configuration. ✅ Embedded server (Tomcat/Jetty) support. ✅ Powerful annotation-based programming model (@RestController, @RequestMapping). ✅ Easy integration testing and documentation (Swagger/OpenAPI). #SpringBoot #Java #RESTAPI #BackendDevelopment #SoftwareEngineering #Microservices #TechCommunity #Coding #API

Everything you need to know about Spring Security in one place! From SecurityFilterChain to JWT vs Session — this cheat sheet covers it all. Bookmark this before your next Spring Boot project #springsecurity #SpringSecurity #SpringBoo #Java #JWT #WebSecurity #BackendDevelopment #JavaDeveloper #Programming #SoftwareEngineering #REST #APIDesign #TechTips #Developer

Everything looked secure… Role check ✔️ Access control ✔️ But still… Unauthorized users got access 😳 That’s when I realized — Security bugs are often invisible ⚠️ One small detail… and your entire system is exposed 🔓 In Spring Security, roles are not just names… they follow a specific pattern 🧠 Miss that… and things break silently 👀 Here’s a quick challenge 👇 💬 Why is this API accessible to normal users? 🚨 Stop just watching tutorials… Real growth = Practice + Consistency 💯 🔥 Java Daily Practice ☕️ 👉 Join & start today 🔗 https://lnkd.in/gfhqgjGd 🚀 #SpringBoot #Java #SpringSecurity #JWT #BackendDeveloper #Programming #Coding #TechLearning #DeveloperTips #LinkedInIndia

🚀 Excited to share my recent learning journey in Multithreading (Java)! Over the past few weeks, I focused on strengthening my understanding of core multithreading concepts, including: 🔹 Thread creation (Thread, Runnable) 🔹 Thread lifecycle & scheduling 🔹 Synchronization (synchronized) 🔹 Locks (ReentrantLock, tryLock, lock) 🔹 Race conditions & thread safety 🔹 Atomic classes (AtomicInteger) 🔹 volatile keyword (visibility) 🔹 Thread coordination (join()) 🔹 Blocking vs Non-blocking operations 💡 To apply these concepts, I built a Order Management System where: ✔ Multiple users (threads) place orders concurrently ✔ Stock is managed safely using synchronization ✔ Payment processing is handled using locks ✔ Prevented overselling using proper concurrency control ✔ Each thread receives correct response (success / unavailable) This project gave me practical understanding of how real-world systems handle concurrency and consistency. 🔗 GitHub Project Link: [https://lnkd.in/dQD6B_xz] I’m now exploring advanced topics like Thread Pools, ExecutorService, and system design. #Java #Multithreading #Concurrency #BackendDeveloper #SoftwareDeveloper #JavaDeveloper #Developers #Coding #Programming #GitHubProjects #SystemDesign #LearnInPublic #CareerGrowth

📘 Spring Notes – 4 Understanding Dependency Injection is one thing… Implementing it is where the real learning happens 💻 Today I worked on: ✔️ Setter vs Constructor Injection ✔️ Autowiring ✔️ Spring Bean Configuration (XML) Also pushed my practice code to GitHub: 👉 https://lnkd.in/gN-j5n3V Slowly building strong backend fundamentals 🚀 Follow for daily updates on my Spring journey. #Java #SpringBoot #Backend #Developers #Learning #TechJourney

📘 Spring Boot Annotations Cheat Sheet Sharing a quick reference PDF covering important Spring Boot annotations used in real-world backend development. This includes: ✅ Core annotations ✅ REST API annotations ✅ Dependency Injection ✅ Configuration annotations ✅ Commonly used annotations in projects Perfect for quick revision & interview preparation 🚀 #SpringBoot #Java #BackendDevelopment #JavaDeveloper #Programming #InterviewPreparation

Understanding how the JVM works is key to mastering Java 🚀 This simple flow explains it clearly: 👉 .java → javac → .class (bytecode) → JVM → Machine Code The JVM makes Java powerful by handling: ✔ Class Loading ✔ Bytecode Verification ✔ Execution (Interpreter + JIT Compiler) It also manages memory efficiently using: 🔹 Heap 🔹 Stack 🔹 Method Area This is what makes Java truly platform-independent — “Write Once, Run Anywhere.” #Java #JVM #Programming #SoftwareDevelopment #Backend #Learning #Tech

💻 Day 22 – Synchronization in Java Today I learned about Synchronization, one of the most important concepts in multithreading. When multiple threads access the same resource at the same time, it can lead to unexpected results (race conditions). Synchronization helps solve this by allowing only one thread to access a resource at a time. Things I learned: 🔹 What is a race condition 🔹 Why synchronization is needed 🔹 Using synchronized keyword 🔹 Ensuring thread safety 💡 Key takeaway: Synchronization helps maintain data consistency and reliability in multithreaded applications. Understanding how Java manages shared resources step by step 🚀 #Java #Multithreading #Synchronization #Programming #LearningInPublic #Day22 #100DaysOfJava