SendOTP : PHP Sever Side Sample Code for Custom Security Architecture

SendOTP.php

<?php
class SendOTP {
    private  $baseUrl = "http://sendotp.msg91.com/api";
    public function generateOTP($request) {
        $data = array("countryCode" => $request['countryCode'], "mobileNumber" => $request['mobileNumber']);
        $data_string = json_encode($data);
        $ch = curl_init($this->baseUrl.'/generateOTP');
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_AUTOREFERER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
            'Content-Type: application/json',
            'Content-Length: ' . strlen($data_string),
            'application-Key: Your-application-key'
        ));
        $result = curl_exec($ch);
        curl_close($ch);
        return $result;
    }

    public function verifyOTP($request) {
        $data = array(
            "countryCode" => $request['countryCode'],
            "mobileNumber" => $request['mobileNumber'],
            "oneTimePassword" => $request['otp']
        );
        $data_string = json_encode($data);
        $ch = curl_init($this->baseUrl.'/verifyOTP');
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_AUTOREFERER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
            'Content-Type: application/json',
            'Content-Length: ' . strlen($data_string),
            'application-Key: Your-application-key'
        ));
        $result = curl_exec($ch);
        curl_close($ch);
        return $result;
    }
}
?>