What is a Flask REST API?

A Flask REST API is a web application or service built using the Flask framework in Python that follows REST (Representational State Transfer) principles. It allows clients to interact with server-side resources using standard HTTP methods such as GET, POST, PUT, and DELETE. Flask makes it easy to create lightweight, scalable APIs by providing tools for routing, request handling, and response formatting. REST APIs are commonly used for building the backend of web and mobile applications, enabling data exchange between clients and servers.