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Advantages of Serverless Development – A Complete Guidelines

Today, we build software products that are changing every day. Serverless development opens new doors to create software products faster. They are not just secure and maintainable, also more scalable with much less code. We can call it the future of development. But, what do you mean by a serverless developer? What should you understand before jumping into the serverless pool? In this blog, we dive into the serverless development complete guide.

What is Serverless?

Serverless means you have to run and manage particular software, service, or an application without the servers. In Serverless architectures, you depend on services that are managed for you. And all the maintenance and operational tasks are abstracted away while using managed services. Servers were still there, but they are not your responsibility to manage.

Our Developer’s Experience with Serverless:

Last time, I worked as an enterprise developer and creating security and performance monitoring products used by a variety of companies. Almost all products were developed by using Java, Spring, MongoDB,  Postgres, ActiveMQ, CentOS, and many more technologies. All were common enterprise technology stacks. After a few months, I took a decision to make a big change and joined the Inventam Tech Solution, well known serverless development company in Surat, India. Inventam Tech is a fresh start-up in the serverless industry. I quite my comfort zone and unlocked myself for the new architecture opportunities. The technology stack at Inventam was very different from what I was used to like a mixture of Python, Node.js, DynamoDB, Kinesis, AWS Lambda, API Gateway, etc.

Serverless Remould Everything:

First of all, to understand about developing an application using serverless architecture means using managed services instead of writing or managing them yourself. For example, an application that is returning the current value of a specific stock, and the concurrency of this application needs to be 5,000. The best solution would be to build a Java application where our application can handle 5,000 tasks in parallel with having a thread per request. Now, the number of threads can create in a single JVM depends on the memory you pre-allocated for the JVM with CPU you have on your machine. With AWS Lambda, you can auto-scale to 5,000 concurrent requests without pre-allocating CPU or memory resources. And the problem has been solved.

Debugging:

Right now, if you could simulate your desired scenario and using your favorite debugging tools. With AWS Lambda, that’s no longer an option. The nature of serverless architecture and the managed services means that traditional debugging tools are off the table. That’s why; the best way to debug your application is by using logs and dedicated tools. If the situation is getting more complicated flows, distributed tracing is another option. But, it’s challenging and could involve changes to your codebase.

Coding Vs Configuration:

Previously, the business logic codes and the architectural decisions were written in the same code. But in the serverless application, the architectural decisions are dissolved from the scope of your business code. If you want to achieve the same in traditional JAVA development, simply you can create a thread pool with 5,000 threads. But when using serverless, your Lambda code will probably is focused on handling a single request and the development will be configured outside the Lambda scope.

Expense:

With traditional architectures, you can ask for the right box for the job, and it’s also easy to calculate the price of the specific box. But in the serverless, you should be familiar with an entirely new concept “Pay & Go”. It’s the most appealing feature of FaaS platforms and it helps you save money in the long run. But when it comes to the cost estimation, it’s too hard to calculate the future cost of your operation which means that you have to set some limitations on your expenses. You need something that will save your cost or else, the bugs or unforeseen circumstances can increase your lot of cost.

Testing:

With serverless, your software or applications run on an environment provided by your cloud vendor. That’s why you must validate your code in a real cloud environment to ensure it performs correctly. Means, your current software or application system, and integration testing infrastructure will run on the cloud and also with using a cloud provider API. If your testing won’t be fit for serverless application testing, it means you might need to redesign it.

Security:

The main advantage of cloud services can help you to create a much more secure application. The point is that you should know about your cloud provider’s role and policies system. If you don’t understand this mechanism, it can cause security holes and potentially break your code.

Switching Context:

Today’s traditional app stack, switching context is minimal. Because most of the coding and configuration are part of you the same scope. Means, you are staying in the same context to do the most things. But in the serverless world, when you are creating a simple application, you will end up with different languages and frameworks for the BL code and the configuration code which causes a lot of context switches.

Best Practices:

The serverless is a new architectural style, but there are many best practices missing despite the fast adoption rate. It will get better as time goes, but if you want all the answers with a quick Google search, think again. Now, as you understand to move serverless will have a huge impact on the way you develop. You should be ready to learn new stuff because a lot is going to change.

If you think to jump from traditional to serverless architecture, you should understand that it’s not a quick win. It is a journey and you should get prepared for it. We hope this blog helps you to understand what topic you have to pay attention to when starting with serverless development. Today, serverless is a great solution for lots of architecture challenges. It’s the best solution from the traditional development stacks. If you still didn’t try serverless before, you should try it now. If you are facing any problem with moving to serverless, Inventam Tech Solution always ready to help you with all serverless application development services. We are the best serverless application development company in Surat, India with having experienced serverless developers who all the time ready to assist you.

    Comments

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