Kamrul Hasan, Don't choose dying technologies with small communities. How many startups do you think use Spring and Django? Use Google Trends to compare technologies. Study the StackOverflow developer survey and job websites to see what technologies are wanted. Few teams can afford to train you to get up to their level so be a life-long learner. Embrace the dawn of a new industry and become an expert.

I recommend you stick to Java Spring as you already have experience with the technology, i suggest you master this technology and then if Django seam to be very interesting to you, django is a framework you can easily pickup as python is also easy, you have to probably be able to manage the context switching between a static typed language like Java to dynamic language like python

Hi Kamrul,

It really depends on the kind of project and whether you feel more comfortable with Java or Python. Both are excellent frameworks, with a huge community and learning material. I've been working with Spring Boot since I started coding almost and I can assure you it's the perfect combination for Java. The learning curve may be harder that Django, but once you know the basics you're good to go. I can't tell you much about Django but you must now by now that it has a great reputation with Python users. In any case I don't think you can go wrong with any of these two. My advice is, if you are already familiar with the Spring framework, give Spring Boot a try, because you're going to find out that it just makes the whole Spring experience so much easier. Let us know what you chose!

It depends on what you want. Spring is Java-based whereas Django is Python-based. The question rather is Java vs Python. I personally recommend Python as it's shorter and easy to learn. But Java has advantages in really big systems.

Both are in active development and had huge community support. It really depends on you what you are comfortable with. Both are married to their respective languages. I choose Python over Java because of its simplicity and readability. To develop in java you need to write a lot of code. That's how java is. The best part I love with Django is its synchronization with Databases.

You can use NestJs with microservice architecture.where you can also use socket.io for web socket. you can use MongoDB (For real-time data) & MySQL for customer management.if you don't want to implement websocket.you can use firebase.it gives realtime database & firestore.which can handle millions of connections and scale it up.

I would also go with NestJS. I would say Java is unnecessarily complicated and limited. And Python is not typed. TypeScript is powerful and typed and goes well with NestJS, especially using RxJS.

Django does not enforce backend-frontend separation, which probably was a good thing back in the days, but not anymore. But on the other hand enforces the project structure to you, which I don't like.

Just a simple Node.JS app with templating engine for UI can be sufficient for what you want to achieve.

Spring boot with Spring Security[JWT], Websocket, Thymeleaf or Mustache, and styling with Bootstrap.