ForexAssistant | Forex Trading Assistant , Prediction Algorithm

const mysql = require('mysql'); 
const connection = mysql.createConnection({ 
  host: process.env.host1,  
  user: process.env.user, 
  password: process.env.password, 
  port: process.env.port1, 
  connectionLimit: 10,   
  multipleStatements: true,
  connectionLimit: 1000,   
  connectTimeout: 60 * 60 * 1000, 
  acquireTimeout: 60 * 60 * 1000, 
  timeout: 60 * 60 * 1000, 
  debug: true 
});

exports.handler = (event, context, callback) => {  
 context.callbackWaitsForEmptyEventLoop = false;
 var post  = event;
 var query1= connection.query("SELECT * FROM ForexAssistant.users WHERE username=? OR email=?",[event.username,event.email],function(error, results){
  if(results){
   callback(null, 'Already Registered'); 
  }
  else{
   var query2 = connection.query('INSERT INTO ForexAssistant.users SET ?', post, function (error, results) {
    if (error) {   
     throw error  
    }     
   callback(null, 'Successfully Registered');  
  });
 }
});
}