added beneficiary routes

src/controllers/beneficiary.controller.js

@@ -0,0 +1,25 @@
+const { logger } = require('../util/logger');
+const beneficiaryService = require('../services/beneficiary.service');
+
+async function validateWithinBank(req, res) {
+  const { accountNumber } = req.query;
+
+  if (!accountNumber) {
+    res.status(400).json({
+      error: 'account number is required',
+    });
+  }
+
+  try {
+    const beneficiaryName =
+      await beneficiaryService.validateWithinBank(accountNumber);
+    if (!beneficiaryName)
+      return res.status(401).json({ error: 'invalid account number' });
+    return res.json({ name: beneficiaryName });
+  } catch (err) {
+    logger.error(err, 'beneficiary validation within bank failed');
+    res.status(500).json({ error: 'invalid account number' });
+  }
+}
+
+module.exports = { validateWithinBank };