implemented a simple backend for mobile banking

src/util/hash.js

@@ -0,0 +1,17 @@
+const bcrypt = require('bcrypt');
+const { logger } = require('./logger');
+
+async function hashPassword(password) {
+  return await bcrypt.hash(password, 10);
+}
+
+async function comparePassword(plain, hash) {
+  const hashedPassword = await hashPassword(plain);
+  logger.info(hashedPassword, 'passed password after hashing');
+  return await bcrypt.compare(plain, hash);
+}
+
+module.exports = {
+  hashPassword,
+  comparePassword,
+};

src/util/jwt.js

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+const jwt = require('jsonwebtoken');
+const { jwtSecret } = require('../config/config');
+
+function generateToken(payload, expiresIn = '1h') {
+  return jwt.sign({ payload }, jwtSecret, { expiresIn });
+}
+
+function verifyToken(token) {
+  return jwt.verify(token, jwtSecret);
+}
+
+module.exports = {
+  generateToken,
+  verifyToken,
+};

src/util/logger.js

@@ -0,0 +1,22 @@
+const pino = require('pino');
+const isDev = process.env.NODE_ENV !== 'production';
+
+const logger = pino({
+  transport: isDev
+    ? {
+        target: 'pino-pretty',
+        options: {
+          colorize: true,
+          translateTime: 'SYS:standard',
+          ignore: 'pid,hostname',
+        },
+      }
+    : undefined,
+  level: isDev ? 'debug' : 'info',
+});
+
+const requestLogger = (req, _res, next) => {
+  logger.info(`${req.method} ${req.url}`);
+  next();
+};
+module.exports = { logger, requestLogger };