When it comes to growing business applications cost-effectively, any company opts for cloud computing. Cloud computing infrastructures also provide benefits to top technological companies such as Quora, Facebook, LinkedIn, Pinterest, and Spotify.

However, these notions can be perplexing for both business owners and beginners to grasp.

They are presented with new notions just when they believe they have grasped the concept of cloud security services and how it helps organizations reduce overall expenses and scale the app. Serverless Architecture is one such technique.

According to research, it is one of the fastest-growing cloud models, with an annual growth rate of 75%.

This essay will go through the notion of serverless, how it works, and why it is beneficial to your business.

Why is AWS Serverless Architecture the Way of the Future in Software Architecture

A Quick Overview of Cloud Infrastructure

Before delving into serverless architecture and its benefits in software development, let’s clear the air on some common cloud computing infrastructures and how they work.

What exactly is cloud computing?

Cloud computing is a cutting-edge technology that enables on-demand delivery of IT infrastructure and resources via the internet using pay-as-you-go pricing structures.

Physical data centers and servers are not purchased, owned, or maintained; rather, they rent from third-party services such as Microsoft Azure, Amazon Web Services, and Google Cloud. You can obtain technology services such as computer power, storage, and databases on an as-needed basis.

According to Microsoft, the four forms of cloud computing infrastructure used for your organization are SaaS, PaaS, IaaS, and FaaS. And you can choose one that is appropriate for your application.

IaaS (Infrastructure as a Service)

Unlike traditional on-premise infrastructure, IaaS provides you with online access to resources such as data storage, networking systems, and cloud servers for deploying operating systems and programs. In a nutshell, it’s the same as hiring a physical server, but online.

PaaS (Platform as a service)

Platform as a service is the most popular and widely utilized model in 2020, accounting for around 32% of these infrastructures, and it expects to rise in the next years.

In contrast to IaaS, you exclusively control your application and data on your premises in this arrangement. Everything else outsources to third-party providers who will supply you with hardware and software tools via the internet. This model is preferred by the majority of developers when creating an application.

Software-as-a-Service (Software as a Service)

SaaS makes software available to users via the internet. Users must pay monthly subscription costs to utilize it as needed. They can stop using the service after their need for the program has passed.

Users can access the program anytime and from any device by logging in. Serverless architecture is the fourth.

What precisely is Serverless Architecture?

A sort of Web application architecture is serverless architecture. It allows programmers to construct applications faster by removing the requirement to manage the infrastructure required to run the code. “Serverless” is a bit of a misnomer. It may give the impression that there is no server in the infrastructure. However, somewhere in the world, there are undoubtedly physical servers supporting serverless applications in any corner of a magnificent warehouse.

Although the qualities are similar to those of PaaS architecture, there are numerous significant distinctions between the two types of architecture.

Pricing, scalability, tooling, startup timing, and the ability to deploy at the network edge are significant differences between serverless and PaaS.

Deployment, resource allocation, provisioning, scaling, OS maintenance, and process monitoring are outsourced in the serverless architecture.

What Is the Process of Serverless Architecture?

In the early days of web application creation, the owner was obliged to own the hardware required to host the application, which was time-consuming and menial work.

Then came the Cloud models (IaaS, PaaS, and SaaS), which allowed firms to acquire IT resources and servers from third-party providers for a fixed charge, allowing them to handle and manage traffic surges on their applications. However, a significant amount of space could not be used properly and was thus squandered. In other words, businesses used to pay more than they could consume.

A new concept known as serverless computing emerged to solve these issues and inefficiencies. Function as a Service (FaaS) or Serverless architecture is some term for it. Programmers assemble the code into building elements known as functions. It is analogous to microservices, in which a large monolithic is divided into small, manageable components that may be scaled independently and concurrently. On the other hand, Function as service goes a step farther by breaking apart the monoliths.

This technology enables developers to purchase backend services on a pay-as-you-go basis. They must now only pay for the services that they use.

Let’s look at an analogy that will help you understand Serverless Architecture and how it works.

Contrast the serverless architecture with the act of drawing water from a faucet. Consider water as a form of computing power. You can take as much water as you need just by tapping. It means you receive what you want. On the other hand, other cloud technologies do not allow you to pay only for what you use.

Essentially, serverless architecture may be scaled up to capitalize on the benefits of new functionalities as needed. Similarly, it can be scaled down by simply turning off the functions when they are no longer required or their predetermined period has expired.

Advantages of Serverless Architecture

From a technical standpoint, the advantages of Serverless architecture are numerous. It reduces needless engineering efforts and simplifies the process by removing complex layers.

However, the architecture is not only beneficial to programmers. It also has a lot of advantages for businesses. If you decide to use serverless architecture, here are some benefits.

  1. Adaptable

As long as you use a serverless architecture, you won’t have to worry about scalability. The system automatically scales up to any level to handle the enormous amount of traffic increase.

Assume you’ve developed a mobile app as a startup idea. The app received positive feedback, and the number of users grew to the point that your server could no longer handle the volume. You don’t have to worry about your app crashing when using a serverless host. To guarantee that your app works properly, the servers are automatically resized.

  1. Less expensive

As previously said, Function as a service allows you to pay for the amount of service you utilize. As a result, you don’t pay any more money for the unused space. So, if you are developing an MVP for your product, it is best to use this computer infrastructure.

  1. Allows you to concentrate on the user experience

Implementing serverless design principles in your application is that you can devote more time and resources to developing customer-facing features rather than managing and provisioning the server. 

  1. Reduced Human Resource Costs

As we have seen, there is no need for installing and managing additional hardware costs, and there is also no need for hardware experts to manage that hardware. This saves a significant portion of your product development money.

Some Use Cases for Serverless Architecture

Today, most new firms exploit the benefits of serverless architecture as they seek easy scaling and lower market entry barriers. We’ve compiled a list of some use cases for serverless architectural models. Determine the kind of apps that can be built with this architecture.

  1. Virtual Assistants and Chatbots

Messaging bots and AI assistants are excellent solutions that meet the serverless criterion. People who use chat apps expect a fast response, and serverless data enables them. As your user base grows from a hundred to a thousand, your processing time should remain constant, which is automated using the Function as a service.

  1. Applications for the Internet of Things (IoT)

The Serverless infrastructure’s real-time responsiveness makes it suited for constructing IoT applications. IoT apps necessitate continuous monitoring of weather, heart rate, temperature, and others. As a result, our serverless architecture enables you to keep up with the changes in amounts tracked in real-time.

It ensures that the service you have purchased is not inactive and works around the clock to make your IoT app flawless.

  1. Image-Intensive Applications

To compete in a competitive market, every program primarily relies on the user experience. Rich image-oriented apps, in particular, should provide each user with a unique user experience.

We now know that each device has a unique size. Developers must supply numerous versions of the same image for the various screen sizes—from mobile to desktop to laptop—to provide a great view of every image. Platforms such as Google and AWS Lambda, on the other hand, automatically optimize images for every demand, making it an ideal solution for image-heavy apps.

  1. Agile and Rapid Development Methodologies

If you want an agile and quick development process, serverless could be a good option. An agile or rapid integration approach necessitates specific code execution as needed, which is consistent with serverless technology. Because this infrastructure separates your source into functions, bug finding becomes simple.

Is there a new PaaS called Serverless Architecture?

We noted before in the post that PaaS is the closest architecture that works similarly to Serverless. However, there is a significant difference between them.

Organizations that have gone to Platform as a Service for lower resource costs can reduce costs even further by going serverless. Because FaaS removes all management control from the programmer’s hands. Furthermore, FaaS apps scale better than PaaS and offer more features that might benefit businesses.

Here are some of the differences between serverless and PaaS.

Scalability: Serverless apps can scale applications on-demand, instantaneously and autonomously. It does not necessitate any additional setting from suppliers or programmers. On the other hand, PaaS-hosted apps can be scaled up in response to user demand. However, to completely scale, developers must perform some predicting.

Pricing: Serverless billing is exact, and programmers only pay for the resources they utilize. Few suppliers charge by the amount of time their functionalities are active, while others charge by the number of requests.

PaaS companies will charge you based on your usage, although it is not as exact as serverless. For the services they use, some PaaS suppliers charge monthly family fees. Developers can choose how much power they want to pay for. However, it is not as quick as serverless.

Serverless apps can be activated quickly when an event triggers an application function. PaaS-built apps can be deployed; however, they are not as lightweight as Serverless and require longer to deploy.

Tools provided by vendors: Because serverless apps do not run on physical or virtual machines, vendors do not provide any tools for testing and debugging. On the other hand, the PaaS vendor will supply you with additional tools for building and managing your tools.

Top Serverless Hosting Companies

There are numerous serverless hosting providers available at the moment. However, these top suppliers dominate the industry with their comprehensive cloud offerings.

Lambda

It is one of the first vendors to offer AWS serverless services via which you can run your code. AWS manages the administration entirely.

Google Cloud Services

It provides a variety of serverless computing options. Using Google Cloud’s Serverless services, you can deploy your software written in PHP, Node.js, Ruby, Go, Python, and other languages. Its features also enable you to create IoT backends, API processing, chatbots, and other applications.

Functions in Azure

After AWS lambda web server, Microsoft’s Azure is the most trusted cloud service provider. Azure functions handle your app’s infrastructure requirements and scale up and down as needed.

Alibaba Services

Since the advent of Alibaba’s serverless computing services, China and other international markets have relied on the brand to run their code on Alibaba.

Open Whisk

IBM cloud functions use Open Whisk to create app actions that respond rapidly to an event trigger.

Conclusion

Serverless architecture patterns provide several benefits, not the least of which is the flexibility to customize and scale, hence delivering a function-as-a-service. However, you lose control when you choose serverless computing for your application architecture.

It remains to be seen what the future of serverless app development holds. Are you a startup or a business seeking a dependable partner to assist you in selecting the best cloud platform for your mobile app? As a top AWS cloud consulting firm, we have assisted numerous organizations in adopting a cloud-first strategy and achieving their business objectives. Let’s talk about it.

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