Components of Selenium WebDriver

1. Selenium Client Library
2. JSON Wire Protocol
3. WebDriver
4. Operating System Browser

1. Selenium Client Libraries

Testers write automation scripts in a language they know. Python, Perl, C#, Java, etc. written in their language. available. Many language options will make your work easier and faster. Additionally, the Selenium user library makes it easy to connect to the following features: Multi-language support. You can write automation scripts in languages ​​where you know Selenium is written.

2. JSON Wire Protocol

The JavaScript Object Notation (JSON) wire protocol helps transfer data between servers and clients on the Internet. It is a REST API service that enables RESTful web services to be transported and interpreted using JSON over HTTP.

• Messenger’s role: JSON Wire Protocol acts as a messenger between the website and the client (such as a web browser or mobile application).
• Data Transfer: It helps in transferring data between the server and the client. This information could be information about users, posts, or other aspects of your website’s performance.
• REST API: It’s a part of the broader concept of REST (Representational State Transfer) API.REST is like a framework for building flexible and scalable web services.
• JSON format: Messages exchanged between the server and the client follow the JSON format. JSON is a simple and readable way to organize data using key pairs.
• HTTP: Messages are sent via the HTTP protocol, which is the basis for communicating information on the Web. It’s the same protocol your browser uses to fetch web pages.

JSON Wire Protocol helps web servers and clients communicate effectively to understand each other’s messages. It seems to have a language (JSON) and a reliable way to transfer the description between them (HTTP).

3. Web Driver

The driver is useful for using browsers and completes automatic scripts for browsers. The browser driver is responsible for managing missing functions in the browser. Each browser has its version of WebDrivers.

Here are some steps for creating automatic scripts using specific browsers:

• Create HTTP requests for each script and send them to the browser driver.
• The specified driver received a request from the server.
• The server sends all instructions for the browser to operate.

When an automation script is executed the following steps occur:

• Each Selenium command makes an HTTP request and forwards it to the browser driver
• The browser driver uses the HTTP server to receive the HTTP request
• HTTP Server steps to take using the Selenium command
• Performs action steps in the browser
• Execution is sent back to the HTTP server
• HTTP server passes events back to the automation script

4. Operating System Browsers

The best thing about Selenium WebDriver is that it supports all major browsers like Firefox, Google Chrome, Apple Safari, IE, Edge, and Opera. Each browser has a special web interface for managing text. Selenium WebDriver provides specific drivers for each browser. So when you want Selenium to work its magic on Google Chrome, it has a special tool (driver) for that purpose. If you switch to Firefox, Firefox will replace its tools with tools designed specifically for Firefox.

Selenium is a popular open-source tool that automates web applications and allows you to run tests on your website. It supports browsers and programming languages ​​including PHP, Python, JavaScript, Java, C#, and Ruby.

Selenium has many features but the main components of Selenium testing tools are:

1. Selenium IDE
2. Selenium WebDriver
3. Selenium Grid 

These components work together to make the website easier to use, with the WebDriver acting as the browser controller and the IDE enabling users to interact with the website. Test the website on different machines and try the browser testing instructions to build and complete it.