A cloud-based concept known as serverless computing or serverless architecture enables users to build and run applications or processes without having to interact directly with the underlying server. There are servers in these cloud settings, but the provider is solely in charge of their provision, scalability, and management. The platform-as-a-service architecture (PaaS), in which users and developers must interact directly with the server(s) and add or enable resources, is one step below the serverless approach.
Developers can concentrate solely on creating and implementing the corresponding software because these administrative activities are not required in projects with serverless computing infrastructures. Stateless functions that carry directives for the program's response to particular events must be developed in addition to the programme code itself, though, in order to make this viable. The relevant programme code, along with the necessary functions (which are stateless and completely independent of infrastructure), can subsequently be uploaded at any moment to the cloud environment. Some providers refer to their serverless services as "function-as-a-service (FaaS)" because of the significant role the functions play in them.