FaaS (Function as a Service) is a cloud computing model that allows developers to create, deploy and run individual functions in the cloud without having to provision or manage any infrastructure. This enables developers to focus on writing code without having to worry about the underlying infrastructure. FaaS is also known as serverless computing, as there is no need for the developer to manage servers, scaling, or availability. FaaS providers such as AWS Lambda, Google Cloud Functions and Azure Functions abstract away the underlying infrastructure, and the developer only pays for the computation and memory resources consumed by their function. It also allows for a more flexible and cost-effective way of building and deploying applications, as it allows for a pay-per-use model, where you only pay for the resources consumed when the function is executed. This model is well suited for event-driven and microservices-based architectures.
