Pradhip Kumar

Backend Developer | Full Stack Enthusiast | Passionate about Java Middleware. Hobbyist in the stock market, football, cricket, and cycling. Movie buff, foodie

[Pradhip Kumar @pradhkum]

ARSENAL ❤️

[Arsenal @Arsenal]

LIFT IT UP ©️

[Pradhip Kumar @pradhkum]

Day 1/30: Intro to Data Structures
Why learn them?

Data structures = the blueprint for organizing & accessing data efficiently.
They power search engines, social feeds, file systems—everything.

Types to know:
•Arrays, Linked Lists, Stacks, Queues
•Trees, Graphs
•Hash Tables

✅ Faster search/sort
✅ Better memory use
✅ Scalable systems

#30DaysOfDS #datastructure

[Pradhip Kumar @pradhkum]

Exploring Spring’s tech stack? Let’s break down the essentials!

HTTP Requests:
•Use RestTemplate for traditional sync calls or WebClient for reactive needs.
•Pros: REST-compliant, robust.
•Cons: Verbose, risks over-fetching.

Graph Databases:
•Simplify Neo4j with @NodeEntity & @RelationshipEntity via Spring Data Graph.
•Pros: Perfect for linked data.
•Cons: Steeper learning curve, situational fit.

RPC (Remote Procedure Call):
•Embrace gRPC for performance. Serialize with Protocol Buffers.
•Pros: Fast, type-safe, microservice-friendly.
•Cons: Complex tooling, less readable.

#SpringFramework #HTTP #GraphDB #RPC #java

[Pradhip Kumar @pradhkum]

Why Layered architecture is important in spring boot

-Distinct Roles:
• Presentation: Handles HTTP requests & JSON translation
• Business: Logic, validation, & authorization
• Persistence: Manages storage & DB operations
• Database: Direct DB interactions

-Modularity & Maintainability:
• Independent development & testing
• Easy modifications & extensions

-Scalability & Flexibility:
• Scale or upgrade layers separately
• Simple feature additions

-Testability:
• Unit test layers individually
• Mock dependencies for testing

Craft resilient, scalable, & maintainable apps with layered architecture!

#SpringBoot #JavaDevelopment #ProgrammingTips 🛠️

[Pradhip Kumar @pradhkum]

What a knock #nitishkumarreddy 🤩👏🏻👏🏻 calm and composed under immense pressure and what a way to bring his Maiden test century👏🏻👏🏻 Well played and equally supported abd crucial runs by #WashingtonSundar. #INDvsAUS #BGT2024

[Pradhip Kumar @pradhkum]

How dependency injection works in Spring?

Spring’s DI is powered by Inversion of Control (IoC): Objects declare dependencies, but Spring handles their instantiation.

How It Works:
-Bean Factory: Orchestrates bean creation, lifecycle management, and dependency resolution.
-Autowiring: Automates injection via constructors, setters, or fields.
-Configurations: Dependencies are defined using XML or annotations for flexibility.
-Lazy Loading: Beans initialize only when accessed for performance gains.
-Lifecycle Hooks: Uses @PostConstruct & reflection to manage bean lifecycle seamlessly.

Spring’s reflection & proxy magic keep everything running smoothly!

#Spring #DependencyInjection #IoC #Java

[Pradhip Kumar @pradhkum]

What Does https://t.co/4YXsoq7NTw() Do Internally?

When you call https://t.co/4YXsoq7NTw() in a Spring Boot application, it kickstarts the entire Spring Boot ecosystem. Here’s an overview of what happens internally

🧵 1/6 First, it detects your application type (Servlet/Reactive/None) and sets up the initial environment. It scans for ApplicationContextInitializer instances and adds them to the pipeline.

🧵2/6 Next, it prepares the environment by loading properties from various sources (https://t.co/8ulHRiILUC, application.yml, system properties, etc.). These form your app's configuration backbone.

🧵 3/6 The ApplicationContext is then created based on your app type. For web apps, it's typically AnnotationConfigServletWebServerApplicationContext.

🧵 4/6 Spring now prepares the context: registers bean definitions, creates beans marked with @Configuration, and sets up the BeanFactory. Your app's skeleton is taking shape!

🧵 5/6 The crucial step: context refresh! This is where beans are instantiated, dependencies are injected, and if it's a web app, the embedded server (like Tomcat) starts up.

🧵 6/6 Finally, it runs ApplicationRunner and CommandLineRunner beans, and your app is live! All this happens in milliseconds. Spring's magic in action! 🌱✨

#SpringBoot #Java #Programming #Backend

[Pradhip Kumar @pradhkum]

Dive into the magic of Spring Annotations & Auto-Configuration for Java devs!

1. @Value: Inject external properties into Spring beans dynamically.
2. @RequestMapping: Easily direct HTTP requests to specific methods.
3. @Qualifier: Resolve bean conflicts by specifying the bean name.
4. @EnableAutoConfiguration: Let Spring Boot handle configurations automatically.
5. @ComponentScan: Discover Spring components in designated packages effortlessly.

Level up your Spring skills with these powerful features! 🚀
#SpringDevelopment #JavaProgramming

[Pradhip Kumar @pradhkum]

Before Spring MVC, we juggled with:

1️⃣ Servlets: Lot of boilerplate, lacking separation of concerns.
2️⃣ JSP: Mixed Java and HTML, hard to maintain
3️⃣ Struts: Early MVC, heavy on XML configurations.

Spring MVC, simplified the structure, annotations, and flexibility.

#Java #SpringMVC #WebDevelopment

[Pradhip Kumar @pradhkum]

Spring MVC vs Spring Boot - let's break it down! 🛠️

1. Spring MVC: A solid web framework for building web apps. Requires manual of configuration(XML or Java-based).

2. Spring Boot: Built on Spring MVC but simplifies development with auto-configurations, embedded servers, and opinionated defaults.

3. The key? Spring Boot speeds up🚀 development by reducing boilerplate code and simplifying the setup process.

#SpringMVC #SpringBoot #JavaDevelopment

[Pradhip Kumar @pradhkum]

🌱 Spring Framework Simplified! 🌱

Excited to announce I'll be sharing daily insights into the Spring Framework, breaking down complex concepts into easy-to-understand bits.

- **Core Spring Concepts**
- **Dependency Injection (DI)**
- **Spring Boot Essentials**
- **And beyond!**

Whether you're starting out or looking to deepen your knowledge, join me on this journey!

#SpringFramework #JavaDevelopment #TechJourney

[Pradhip Kumar @pradhkum]

@Zephyr_hg Auto

[Pradhip Kumar @pradhkum]

India is on the moon 🌗

[ISRO @isro]

Chandrayaan-3 Mission:
'India🇮🇳,
I reached my destination
and you too!'
: Chandrayaan-3

Chandrayaan-3 has successfully
soft-landed on the moon 🌖!.

Congratulations, India🇮🇳!

#Chandrayaan_3
#Ch3

[Indian Tech & Infra @IndianTechGuide]

🚨 India's Chandrayaan-3 spacecraft has officially landed on Moon surface. Congratulations to team @isro 🇮🇳🌕🚀🙌👏💥

[Mufaddal Vohra @mufaddal_vohra]

Captain Sunil Chhetri being carried on the shoulders after the SAFF win.

An iconic moment!

[Pradhip Kumar @pradhkum]

That’s how champions bounce back😍 Way to go @Arsenal 🤩🤩

[Pradhip Kumar @pradhkum]

@HopperSupport: we are waiting for the reply from your chat agent

[Pradhip Kumar @pradhkum]

@HopperSupport what the latest I can help with my hotel reservation. We are at hotel lobby and they told us that need to receive the reservation from hopper. We paid for VIP support 9$ and no reply yet.

[TrendSpider @TrendSpider]

$DASH Gap and Go breakdown out of this ascending wedge yesterday 🩸 On watch for continuation or a possible retest 🔎

https://t.co/URPDCGTKnM