Function as a service (FaaS), also known as serverless computing, is gaining popularity among developers due to its simplicity and cost savings. FaaS allows developers to focus solely on coding and development for their applications without worrying about maintaining servers. It shines when used for simple and repetitive functions without consistent workloads or high volumes of requests. Some popular use cases for FaaS include APIs for web and mobile applications, multimedia processing, data processing, and the Internet of Things (IoT).