Appium Architecture A ppium is a cross-platform automation tool, API of it supports both OS (Android and iOS) test scripts.It is tested on simulators (iOS,), emulators (Android), and real devices (iOS, Android) Appium is an HTTP server written in Node.js that creates and handles WebDriver sessions.The Appium web server follows the same approach as the Selenium WebDriver, which receives HTTP requests from client libraries through JSON and then handles those requests in different ways JSON wire protocol The JSON wire protocol ( JSONWP ) is a transport mechanism created by WebDriver developers. This wire protocol is a specific set of predefined, standardized endpoints exposed via a RESTful API. Appium implements the Mobile JSONWP, the extension to the Selenium JSONWP, and it controls the different mobile device behaviors, such as installing/uninstalling apps over the session Let’s have a look at some of the endpoints from the API which are used to interact with