Spring Boot Beans Mastery 🚀 | @Primary, @Qualifier & Naming Secrets 🌿 (Hindi Tutorial)

Welcome to Backend Verse! 🎥
In this video, we cover how Spring Boot manages beans when multiple implementations exist, and how you can control which bean gets injected using @Primary, @Qualifier, and custom bean names.

👉 Watch the full tutorial series here:
Spring Boot Tutorial Series in Hindi 🌿

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▶ Watch the Tutorial

📺 Spring Boot Beans Mastery 🚀 | @Primary, @Qualifier & Naming Secrets 🌿 (Hindi Tutorial)

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📝 What You’ll Learn

📌 How Spring Boot handles multiple bean candidates
⚡ Using @Primary to set a default bean
🏷️ Using @Qualifier to pick a specific bean
🔑 Naming beans explicitly with @Bean(name = "...")
💡 Real-world example: Payment Service (PhonePe vs Paytm)
✅ Best practices for dependency injection with multiple beans

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🎯 Why Watch This Video?

With Spring Bean mastery, you can:
✔️ Handle multiple service implementations without confusion
✔️ Build flexible and scalable applications
✔️ Understand core interview topics for Java & Spring Boot
✔️ Write clean, production-ready backend code

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🔧 Tools & Technologies Used

• Java 17
• Spring Boot
• Gradle / Maven (choose as per project setup)
• IntelliJ IDEA
• Postman

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🔗 Example APIs

Below are some sample curl commands you can test directly:

1️⃣ API To Test Current Used Bean Replace {/paytm} -> {/phonepe} to test Bean Switching

http://localhost:8080/paytm?amount=10

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▶ Watch the Tutorials

📺 Previous Video:
Master Spring Boot Beans 🌱 | IoC Container & Dependency Injection Real Example 🚀 | Hindi

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📌 Next in this Series

In the upcoming video, we’ll cover:
✨ @ConditionalOnProperty – Conditional Bean Loading
✨ Real-world usage in feature toggles
✨ How to enable/disable features using configs

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👍 Like the video if you found it helpful
💬 Drop your questions in the comments
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