Whatsapp Web uses Node.js?


I would like to know what technologies are used in Whatsapp Web development.

Ps: Question at the research level.


NodeJS is used. On the backend, the server used is Yaws, which is developed in Erlang, one of the first languages ​​completely focused on concurrent applications.

On the front, there is no specific technology. Apparently everything is developed in-house. Note only the use of Material Design, flex-box (when supported), ReactJS, Modernizr (to identify what the browser supports), MomentJS, VelocityJS in the animations.

About editors, etc, I believe there is no specific one. Facebook does not restrict its employees to a specific editor or IDE. Only the test flow and their CI that is mandatory (remember that Facebook bought WhatsApp).

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