Laravel Authentication OTP with Mobile Phone

Nowadays, there is a lot of application moving from traditional email/password to phone number/password as the main authentication. It is because the OTP method we could say it much more secure than email verification. Hence, the phone number has been the one of authentication ID to access sensitive information. In such situations, it’s vital for the system to verify that the phone numbers are valid and functional.

How to verify the validity of phone number?

Basically, the idea is the same behaviour like email verification but instead of using verification link, we use the OTP passcode to their phones and ask them to enter the passcode.

The flow is quite straight forward,

1. User register with phone number and password
2. System generate random 6 digit code and sent to user mobile user via SMS gateway
3. User entered the code and phone number get verified

How to implement in Laravel

Currently, Laravel already provides a seamless email verification steps which can be implemented by few lines of codes rather than forcing you to re-implement this feature by hand for each application that you created. From that approach, we can simple mimic the code and make…