Handling API Request

API

Application Programming Interface exist in every programming language in both backend and frontend side

An example in javascript: Class X have an API called getName

class X {
  private name;
  constructor (name) {
    this.name = name;
  }

  getName() {
    return `Name: ${this.name}`;
  }
}

Or API usually know as backend public API in RESTFUL or GRAPHQL

This is an example of a public API which is provided by a backend service

Link: Swagger