What is the role of serverless functions in a serverless GraphQL architecture, and when might you use them?

A serverless GraphQL architecture eliminates the requirement for a dedicated, continuously operating server by using serverless functions to carry out the business logic of GraphQL resolvers. Incoming GraphQL requests are handled by these dynamically allocated functions, which enable cost-effective scaling based on request load. They are particularly useful for handling sporadic or unpredictable traffic, executing computationally intensive tasks, and integrating with other serverless services or APIs. These benefits make serverless functions a flexible and scalable backend solution.