In the past development of web application information systems, user authentication is an indispensable function module. The user authentication function includes user registration and log in authentication. In the past development methods, the common way to realize the user authentication function module is to use email and SMS to verify. Now, many users’ computers are equipped with cameras, which can fully use the artificial intelligence technology of face recognition to achieve user authentication. I used the JavaScript library of FaceIO to implement user authentication in the web app project.

This article mainly introduces how to develop the user login module of the web application project through the third-party AI service interface. The source code of the web application project has been uploaded to GitHub and is based on the MIT protocol. There are no restrictions. 

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