added two routes for getting and setting the daily limit of users

src/routes/customer_details.route.js

@@ -1,5 +1,13 @@
 const customerController = require('../controllers/customer_details.controller');
+const {
+  getDailyLimit,
+  getUsedLimit,
+  setDailyLimit,
+} = require('../services/paymentLimit.service');
 const { logger } = require('../util/logger');
+const express = require('express');
+
+const router = express.Router();
 
 const customerRoute = async (req, res) => {
   const customerNo = req.user;
@@ -12,4 +20,45 @@ const customerRoute = async (req, res) => {
   }
 };
 
-module.exports = customerRoute;
+const limitRoute = async (req, res) => {
+  const customerNo = req.user;
+  const client = req.client;
+
+  try {
+    const dailyLimit = await getDailyLimit(customerNo, client);
+    if (!dailyLimit) {
+      return res.status(400).json({ error: 'NO DAILY LIMIT SET FOR USER' });
+    }
+    const usedLimit = await getUsedLimit(customerNo, client);
+    res.json({ dailyLimit: dailyLimit, usedLimit: usedLimit });
+  } catch (err) {
+    logger.error(err, 'Unknown error encountered while checking daily limit');
+    res.status(500).json({ error: 'INTERNAL_SERVER_ERROR' });
+  }
+};
+const limitChangeRoute = async (req, res) => {
+  const customerNo = req.user;
+  const client = req.client;
+  const { amount } = req.body;
+  const numericLimit = Number(amount);
+
+  if (!Number.isFinite(numericLimit)) {
+    logger.error(`Invalid new Limit, found: ${newLimit}`);
+    return res
+      .status(400)
+      .json({ error: 'NEW LIMIT AMOUNT IS REQUIRED WHEN SETTING LIMIT' });
+  }
+  try {
+    await setDailyLimit(customerNo, client, numericLimit);
+    return res.status(200).json({ message: 'LIMIT SET' });
+  } catch (err) {
+    logger.error(err, 'Unexpected error while setting limit amount');
+    res.status(500).json({ error: 'INTERNAL SERVER ERROR' });
+  }
+};
+
+router.get('/', customerRoute);
+router.get('/daily-limit', limitRoute);
+router.post('/daily-limit', limitChangeRoute);
+
+module.exports = router;