Serverless application – why and what?

What is a serverless application? Serverless applications allow you to purely focus on your application its logic, without having to worry about: servers, server costs, downtime, and scalability. This is because, there are no servers to maintain, operating systems to take care of, software to manage, or hardware to upgrade. And, in addition, your applications...

Last updated: 17 Sep 2020 - 3 mins read

Robin Creative Director

Render of a server in the cloud


What is a serverless application?

Serverless applications allow you to purely focus on your application its logic, without having to worry about: servers, server costs, downtime, and scalability.

This is because, there are no servers to maintain, operating systems to take care of, software to manage, or hardware to upgrade.

And, in addition, your applications have built-in high-availability and fault-tolerance. Fault-tolerance refers to the ability of a system (computer, network, cloud cluster, etc.) to continue operating without interruption when one or more of its components fail. Fault-tolerant systems use backup components that automatically take the place of failed components, ensuring no loss of service. You can really focus your energy on your core application logic and build your applications virtually (with high-availability) at any scale. Because of this, you really do have to worry about any servers or operating systems.

The benefits of serverless

Now let's take a look at the four main benefits of serverless.

First, as we discussed, there are no servers or operating systems to maintain. You don't have to manage any servers or even have to install an operating system or any other supporting software.

Second, it’s easy and efficient to scale. Serverless applications (or serverless architectures) can be scaled automatically, or at the most, with a few clicks to choose your desired capacity. Therefore, there is no need to create any specialized scalable architecture or designs.

Third, high-availability. Serverless applications have built-in availability and fault tolerance. So, you don't need to have any specialized infrastructure to make your applications highly available or fault-tolerant. All this is available to you by ‘out of the box’.

Fourth, and this is a big one, no idle capacity. You pay only for what you use and nothing more. For example, in the traditional architecture, you create a server with 200 GB of memory and you're using only 20 GB of it. However, you'll still have to pay for the 180 GB that you're not using.

Why serverless?

But what is the sole focus of a serverless application (or architecture)? you pay only for what you use. So, if you're using 20 GB, you only pay for 20 GB. In addition, with AWS Lambda, which is the core component of Amazon's serverless platform, you pay only for the time your code runs (or the processing power). Therefore, you’re not charged if your code is not running. For example, if your code runs for 100 milliseconds you are charged only for that 100 milliseconds. That's a very fine-grained control and can result in substantial cost savings for you and /or your business!

Top 5 serverless hosting providers

While the technique is still in a pretty young and at an early stage, it is definitely operational. Find below the biggest and / or ‘best’ service providers.

  1. AWS Lambda
  2. Google Cloud Functions + Firebase
  3. Microsoft Azure
  4. Alibaba Functions
  5. IBM Bluemix/OpenWhisk


    By signing up you agree with our privacy policy


    To speak with us, call (+31) 613 326 179, send us an email, or reach out to us by chat or What’s App.


    Shopify Summer Editions ’23 – our favourites

    Imagine my Business – Imagine my Store – Imagine my Future This is the hook, Shopify introduces us to the Summer Editions ’23. One of the most powerful updates until now. There have been some changes in the digital world, which automatically affect the eCommerce industry – bringing a lot new opportunities to the field. Personalisation...

    Shopify’s one-page checkout

    By now, we’ve all heard of the Shopify Editions | Winter ’23 and the amazing upgrades that the eCommerce platform will be offering soon.  Shopify is one of the biggest players in the industry, holding a substantial market share in the United States and accounting for over $444 billion in global economic activity. The new...

    B2B with Shopify: Unlocking the Power of Business-to-Business Commerce

    In today’s digital age, eCommerce has revolutionised the way businesses operate and connect with their customers. Shopify, one of the leading eCommerce platforms, not only caters to direct-to-consumer (DTC) businesses but also provides robust features, which Shopify Plus merchants can utilise for business-to-business (B2B) transactions. This article explores the world of B2B on Shopify, its...

    Shopify Markets Pro: The Ultimate Solution for International eCommerce Businesses

    Are you looking to expand your eCommerce business and take over the international market? Yet the complexities of international transactions made you reconsider your decision? Shopify Markets Pro delivers an all-in-one solution that simplifies the process of selling globally. We’ll be showing you all the things you need to know about the new toolkit of...

    The logo of Klaviyo One, a comprehensive customer data platform (CDP) that revolutionises business growth and customer engagement.

    What is Klaviyo One?

    Klaviyo One is the all-in-one platform to grow your business. Klaviyo has always been a powerful email marketing tool, but with the release of Klaviyo One, they are now a complete customer data platform (CDP). This means that you can now manage all of your customer data in one place, and use it to drive...

    Various equipment such as camera are put on the white background

    Omnichannel versus Multichannel

    Omnichannel and multi-channel: what’s the difference? We’re going to be elaborating on the differences between omnichannel and multi-channel. So let’s jump straight into it! So let’s start off with a few definitions. The defintions First of all, when we speak about channels what we mean is a medium through which a brand is able to...

    Title of the blog: WooCommerce migration: A step-by-step guide

    WooCommerce migration: A step-by-step guide on how to navigate your migration

    In the dynamic world of eCommerce, staying ahead means not just keeping pace with technology but leveraging it to your advantage. At Flatline Agency, we’ve observed a significant trend where businesses are transitioning their digital storefronts to platforms that offer more agility, scalability, and user engagement.  Introduction WooCommerce is favoured by many for its seamless...

    Season 2/2: Mastering Framer’s most useful features in 5 minutes

    Learn how to create your new intuitive, and beautiful experiences with Framer Welcome back to our Framer blog series. In our previous blog post, we started discovering how Framer can transform the process of designing, sharing, and publishing websites and prototypes without the need for coding knowledge. Framer is a comprehensive design tool tailor-made for...

    Shopware to Shopify: The best eCommerce tool in 2024

    Switching from Shopware to Shopify should be your next step, but why? Furthermore, how? We’re here to answer all these questions, so don’t worry. Introduction At Flatline, we have noticed a shift in businesses in the digital marketplace. More companies are transitioning from Shopware to Shopify to unlock new growth opportunities and enhance their digital...

    Season 2/1: Framer’s what, how, and why

    Let’s learn how to design, share, and publish your new website faster than ever with no code. At Flatline, we’re excited to announce that we will release a new blog series. This, as the title suggests, will cover how to use Framer to the best of its ability. Our first release will explain “what” Framer...

    From Lightspeed to Shopify: Optimising your migration in 2024

    Migrating from Lightspeed to Shopify is absolutely worth it, but why? And how? Don’t worry, all of these questions will be answered here. Lightspeed and Shopify Identification Lightspeed is a cloud-based commerce platform tailored for retail, hospitality, and golf businesses. It provides a comprehensive set of tools, including point-of-sale (POS) systems, inventory management, and customer...

    ChatGPT 3.5 vs ChatGPT 4: A direct comparison

    The staggering differences between ChatGPT 3.5 and ChatGPT 4, side-by-side. Welcome to our newest blog. Today we’ll be delving into the details of 2 of the most popular AI tools in the world. ChatGPT 3.5 and ChatGPT 4. As some of you may already know, Chat ChatGPT is the paid subscription provided by OpenAI, we’re...


    HubSpot settings: Your clear guide for 2024

    A complete guide to answer all of your questions on how to set up your HubSpot Settings. Welcome to our guide on your HubSpot settings navigation. If you’re new to HubSpot and not sure how or where to start, don’t worry. This guide, along with our complementary videos, will help you through each step to...

    Season 1/4 – Shopify B2B apps

    Shopify B2B apps – the Flatline go-to’s Shopify has brought its B2B game to the next level. There are a lot of opportunities to take from the eCommerce platform and also a lot of apps to be used. We’ll introduce you to the B2B basics of Shopify and our Go to apps, for Shopify Plus...

    Season 1/3 – Shopify multistores

    Shopify multistores – the innovation of merging your online business Shopify has emerged as a beacon for retailers looking to expand their digital footprint. With the introduction of Shopify multistores, businesses now have the capability to manage multiple storefronts under a single umbrella, a feature that has revolutionised the way brands approach online selling. This...

    Season 1/2 – Shopify email setup

    Let us show you how to set up your Shopify email – store owner email and sender email! Email is more than a communication tool for your customers, it’s a real marketing tool that can be used in so many ways. 2024 is definitely an opportunity for you to step up your mail game with...

    This site is registered on wpml.org as a development site. Switch to a production site key to remove this banner.