forget password-dummy_backend

const jwt = require('jsonwebtoken');
const nodemailer = require('nodemailer');
var smtpTransport = require('nodemailer-smtp-transport');
const config = require('../../config.json');
const dbConfig = require("../../mysql_connection");

exports.forgetPassword = function (req, res, next) {
    let email = req.body.email;
    let query_ = "SELECT * from user where email=?";

    dbConfig.query(query_, [email], (err, rows) => {
        if (err) {
            console.log("Error Connecting to Server !");
            return res.status(404).send({ success: false, message: "Error Connecting to Server!" });
        } else {
            if (rows[0] != null) {
                let randomNo = Math.floor(100000 + Math.random() * 900000);
                let transporter =  nodemailer.createTransport(smtpTransport({
                    service: 'gmail',
                    host: 'smtp.gmail.com',
                    auth: {
                      user: 'snykmonitor95@gmail.com',
                      pass: 'Maneesha@123'
                    }
                  }));
                
                let mailOptions = {
                  from: 'snykmonitor95@gmail.com',
                  to: email,
                  subject: 'Rest Password of Bellarena Account',
                  text: 'Your Six Digit Token:'+randomNo
                };

                let query_0 = "UPDATE user set forgetPasswordNo=? where email=?";
                dbConfig.query(query_0, [randomNo,email], (err, rows) => {
                    if (err) {
                        console.log("Error Connecting to Server !");
                        console.log(err);
                        return res.status(404).send({ success: false, message: "Error Connecting to Server!" });
                    } else {
                        transporter.sendMail(mailOptions, function(error, info){
                            if (error) {
                                return res.status(404).send({ success: false, message: "Error connecting to mail server!" });
                            } else {
                                res.status(200).send({ success: true, data: { email: email, message: "Successfully send the mail" } });
                            }
                          });
                    }
                });
                
            } else {
                console.log("Invalid Email address!");
                return res.status(401).send({ success: false, message: "Invalid Email address!" });
            }
        }
    });