add comment in code

Author: codinghack30

src/controllers/transaction.controller.js

@@ -63,6 +63,7 @@ const update = async (req, res) => {
         const userId = req.user.id;
         const { content, amount, service } = req.body;
 
+        // Check if ServiceProvider exists
         const serviceProvider = await ServiceProvider.findOne({
             where: { name: service },
         });
@@ -86,6 +87,7 @@ const update = async (req, res) => {
         // Update transaction
         transaction.amount = amount;
         await transaction.save();
+
         res.status(200).json({
             msg: "Transaction updated successfully.",
             transaction,
@@ -101,12 +103,14 @@ const deleteTrans = async (req, res) => {
         const userId = req.user.id;
         const { service } = req.body;
 
+        // Check if ServiceProvider exists
         const serviceProvider = await ServiceProvider.findOne({
             where: { name: service },
         });
         if (!serviceProvider) {
             return res.status(404).json({ msg: "ServiceProvider not found." });
         }
+
         const serviceId = serviceProvider.id;
 
         // Check if transaction exists

src/controllers/user.controller.js

@@ -227,6 +227,7 @@ const search = async (req, res) => {
     try {
         const { key } = req.query;
 
+        // Check if the service exists
         const searchedService = await ServiceProvider.findAll({
             where: {
                 servicesProvided: {

src/controllers/verify.controller.js

@@ -10,9 +10,8 @@ const sendCode = async (req, res) => {
     try {
         const { email } = req.body;
 
-        const userAccount = await UserAccount.findOne({ where: { email } });
-
         // Check if the user exists
+        const userAccount = await UserAccount.findOne({ where: { email } });
         if (!userAccount) {
             return res.status(404).json({ msg: "User did not signup. Please signup." });
         }
@@ -37,6 +36,8 @@ const sendCode = async (req, res) => {
                 pass: process.env.SMTP_PASSWORD,
             },
         });
+
+        // Defined transport object
         const mailOptions = {
             from: `${process.env.APP_NAME} <${process.env.EMAIL_FROM}>`,
             to: email,
@@ -47,6 +48,8 @@ const sendCode = async (req, res) => {
             <h1 style="padding: 12px; border-left: 4px solid #d0d0d0; font-style: italic;">${code}</h1>
             <p>Best wishes,<br>Scope Inc.</p>`,
         };
+
+        // send mail with defined transport object
         transporter.sendMail(mailOptions, (error, info) => {
             if (error) {
                 res.status(500).json({ msg: error.message });

src/middlewares/requiredAuth.js

@@ -8,28 +8,34 @@ const secretOrKey = process.env.JWT_ACCESS_TOKEN_SECRET_PRIVATE;
 
 module.exports = async (req, res, next) => {
     try {
+        // Check if the user is authenticated
         if (!req.headers.authorization) {
             return res.status(401).json({ msg: "No authentication." });
         }
+
+        // Check if the token is existed.
         const token = req.headers.authorization;
         if (!token) {
             return res
                 .status(401)
                 .json({ msg: "No token, authentication denied." });
         }
+
+        // Verify token
         jwt.verify(token, secretOrKey, async (error, decoded) => {
             if (error) {
                 return res.status(401).json({ msg: "Token is not valid." });
             }
 
+            // Check if the user exists
             const userAccount = await UserAccount.findOne({
                 where: { email: decoded.email },
             });
-
             if (!userAccount) {
                 return res.status(404).json({ msg: "User does not exist." });
             }
 
+            // Add user to request
             req.user = userAccount;
             await next();
         });