update eslint config + other changes

.eslintrc.js

@@ -64,6 +64,7 @@ module.exports = {
         'space-in-parens': [
             'error', 
             'always'
-        ]
+        ],
+        'no-var': 'error'
     }
 };

src/server/app.js

@@ -15,8 +15,8 @@ const bodyParser = require( 'body-parser' );
 const cookieParser = require( 'cookie-parser' );
 const http = require( 'http' );
 const fs = require( 'fs' );
-// const sql = require( './backend/db/mysqldb.js' );
+const mail = require( './backend/mail/mailSender.js' );
-// const sqld = new sql();
+const mailManager = new mail();
 
 // const env = process.env.PROD || false;
 

src/server/backend/db/db.js

@@ -7,9 +7,27 @@
 *
 */
 
+const path = require( 'path' );
+const fs = require( 'fs' );
+
 module.exports.getData = function getData ( db, searchQuery ) {
     console.log( db + searchQuery );
     return new Promise( resolve => {
         resolve( '$2b$05$ElMYWoMjk7567lXkIkee.e.6cxCrWU4gkfuNLB8gmGYLQQPm7gT3O' );
     } );
 };
+
+module.exports.getJSONData = function getData ( file ) {
+    return new Promise( ( resolve, reject ) => {
+        fs.readFile( path.join( __dirname + '/../../' + file ), ( error, data ) => {
+            if ( error ) {
+                reject( 'Error occurred: Error trace: ' + error );
+            }
+            resolve( JSON.parse( data ) );
+        } );
+    } );
+};
+
+module.exports.getJSONDataSync = function getData ( file ) {
+    return JSON.parse( fs.readFileSync( path.join( __dirname + '/../../' + file ) ) );
+};

src/server/backend/db/jsondb.js

@@ -0,0 +1 @@
+class 

src/server/backend/mail/mailSender.js

@@ -10,9 +10,10 @@
 const mailer = require( 'nodemailer' );
 const html2text = require( 'html-to-text' );
 
-// import jsondb.js file and let it import mail config
+const db = require( '../db/db.js' );
+
+let transporter = mailer.createTransport( db.getJSONDataSync( 'mail.secret.json' ) );
 
-var transporter = mailer.createTransport(  );
 
 class MailManager {
     constructor () {
@@ -26,7 +27,7 @@ class MailManager {
     */
     sendMail ( recipient, html, subject, sender ) {
         let text = html2text.convert( html, this.options );
-        var mailOptions = {
+        let mailOptions = {
             from: sender,
             to: recipient,
             subject: subject,
@@ -43,7 +44,7 @@ class MailManager {
 
     sendMailWithAttachment ( recipient, html, subject, attachments, from ) {
         let text = html2text.convert( html, this.options );
-        var mailOptions = {
+        let mailOptions = {
             from: from,
             to: recipient,
             subject: subject,