How to Verify a User via SMS with JavaScript and Twilio Verify

In this article, the author guides users through building an application that verifies user identity using Twilio Verify's SMS feature. The process involves setting up a Twilio account, creating a new Twilio Verify service, and configuring it to send and receive SMS messages. The author then builds a frontend application in JavaScript and HTML, which sends the user's phone number to the backend endpoint `/send-notification` for verification. After receiving the phone number, the backend endpoint creates a verification check using Twilio Verify's API. When the user submits their OTP, the backend endpoint verifies it against the stored verification code and returns a response with the status of the verification check. The article concludes by testing out the application and deploying the functions to a publicly accessible URL for use in production.