The IT world revolves around servers – we set up, manage, and scale them, we communicate with them, deploy software onto them, and restrict access to them. In the end, it is difficult to imagine our lives without them. However, in this “serverfull” world, an idea of serverless architecture arose. A relatively new approach to building applications without direct access to the servers required to run them. Does it mean that the servers are obsolete, and that we no longer should use them? In this article, we will explore what it means to build a serverless application, how it compares to the well-known microservice design, what the pros and cons are of this new method, and how to use the AWS Cloud Development Kit framework to achieve that.
Background
There was a time when the world was inhabited by creatures known as “monolith applications”. Those beings were enormous, tightly coupled, difficult to manage, and highly resource-consuming, which made the life of tech people a nightmare.