Appium is basically an HTTP server written in Node.js® that creates and handles webdriver sessions.
Node.js® is a platform built on Chrome’s JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.
Appium architecture
As Appium is an HTTP server, its performs pretty much same as Selenium Webdriver server by
Receiving request/commands from client libraries*
Executes the command on the target devices/emulators
Responds with an HTTP response
Hence Appium works as a Client/Server architecture.
Client libraries
Appium client libraries has different language bindings like
Ruby
Python
Java
JavaScript
PHP
C#
RobotFramework
Please find below the video of above discussion
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Karthik KK
