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See below for an example workflow for browser initialization. The restful API protocol is defined by the W3C WebDriver API. Nightwatch works by communicating over a restful HTTP api with a WebDriver server (typically the Selenium server). It provides a platform and a restful HTTP api as a way for web browsers to be remotely controlled. WebDriver is a remote control interface that enables introspection and control of user agents. WebDriver is now a W3C specification, which aims to standardize browser automation. Nightwatch uses the WebDriver API to perform the browser automation related tasks, like opening windows and clicking links for instance. It was started as part of the Selenium project, which is a very popular and comprehensive set of tools for browser automation, initially written for Java but now with support for most programming languages.

WebDriver is a general purpose library for automating web browsers. The masterpiece is prominently displayed in the Rijksmuseum, in Amsterdam - The Netherlands. Nightwatch got its name from the famous painting The Night Watch by Dutch artist Rembrandt van Rijn. Nightwatch can also be used for writing Node.js unit tests. It is a complete browser ( End-to-End) testing solution which aims to simplify the process of setting up Continuous Integration and writing automated tests. Nightwatch.js is an automated testing framework for web applications and websites, written in Node.js and using the W3C WebDriver API (formerly Selenium WebDriver).

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