Frontend1 #21
Frontend1 #21
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Add db to seperate folder and controllers and Make necessary changes
WalkthroughThis pull request introduces extensive updates to both the frontend and backend of the application. The frontend now includes new configuration files, entry points, and multiple React components for login, dashboard, calendar, and QR-code scanning functionalities. The documentation has been updated with team details and setup instructions. On the backend, new environment configurations, database connection setups, controllers for authentication and scanning, middleware for JWT verification, and additional Mongoose models and routes have been added to support user registration, login, and scan tracking. Changes
Sequence Diagram(s)sequenceDiagram
participant User as User
participant LC as LoginComponent
participant AC as AuthController
participant DB as Database
User->>LC: Enter username & password
LC->>AC: POST /login with credentials
AC->>DB: Query user & verify password
DB-->>AC: Return user data or error
AC-->>LC: Respond with JWT token (or error)
LC->>User: Navigate to Home on success
sequenceDiagram
participant User as User
participant QS as QRScanner
participant SC as ScanComponent
participant API as BackendAPI
participant AM as AuthMiddleware
participant SCn as ScanController
participant DB as Database
User->>QS: Scan QR code
QS->>SC: Trigger onScan(data)
SC->>API: POST /scan with scan type & token
API->>AM: Validate JWT token
AM-->>API: Return authenticated user ID
API->>SCn: Process scan request
SCn->>DB: Check existing scan/time validity
DB-->>SCn: Return scan status
SCn-->>API: Respond with success/error
API-->>SC: Send confirmation response
SC->>User: Display scan result
Poem
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Actionable comments posted: 8
🔭 Outside diff range comments (1)
frontend/src/App.jsx (1)
1-36: Replace template code with actual application structure.This appears to be the default Vite + React template. Consider replacing it with your actual application structure.
-import { useState } from 'react' -import reactLogo from './assets/react.svg' -import viteLogo from '/vite.svg' +import { BrowserRouter as Router, Routes, Route } from 'react-router-dom' +import { AuthProvider } from './contexts/AuthContext' +import Layout from './components/Layout' +import Dashboard from './components/Dashboard' +import Login from './components/Login' import './App.css' function App() { - const [count, setCount] = useState(0) - return ( - <> - <div> - <a href="https://vite.dev" target="_blank"> - <img src={viteLogo} className="logo" alt="Vite logo" /> - </a> - // ... remove template code ... - </div> - </> + <AuthProvider> + <Router> + <Layout> + <Routes> + <Route path="/login" element={<Login />} /> + <Route path="/dashboard" element={<Dashboard />} /> + {/* Add more routes as needed */} + </Routes> + </Layout> + </Router> + </AuthProvider> ) }
🧹 Nitpick comments (12)
frontend/src/App.js (1)
1-18: Consider renaming the file to App.jsx.The implementation is correct, but since this file contains JSX, it should use the .jsx extension for better clarity and tooling support.
frontend/src/components/Dashboard/Dashboard.js (2)
1-22: Consider renaming the file to Dashboard.jsx.Since this file contains JSX, it should use the .jsx extension.
7-10: Improve logout implementation using React Router's navigation.Instead of directly manipulating window.location, consider using React Router's useNavigate hook for a more React-friendly approach.
-const Dashboard = () => { +import { useNavigate } from 'react-router-dom'; + +const Dashboard = () => { + const navigate = useNavigate(); + const handleLogout = () => { localStorage.removeItem('token'); - window.location.reload(); + navigate('/', { replace: true }); };frontend/src/components/Calender/Calender.js (2)
1-22: Fix spelling inconsistency in component and file names.The word "Calendar" is misspelled as "Calender" in the component folder and file names. This should be corrected for consistency.
Rename:
- Folder:
Calender→Calendar- File:
Calender.js→Calendar.jsx
6-13: Add PropTypes validation and use semantic color class names.
- Add PropTypes for type checking
- Use semantic class names instead of colors for better maintainability
+import PropTypes from 'prop-types'; import React from 'react'; import Calendar from 'react-calendar'; const CustomCalendar = ({ scans }) => { const tileClassName = ({ date }) => { const scan = scans.find((s) => new Date(s.date).toDateString() === date.toDateString()); if (scan) { - return scan.type === 'lunch' ? 'green' : 'brown'; + return scan.type === 'lunch' ? 'scan-lunch' : 'scan-snack'; } return null; }; // ... rest of the component }; + +CustomCalendar.propTypes = { + scans: PropTypes.arrayOf( + PropTypes.shape({ + date: PropTypes.string.isRequired, + type: PropTypes.oneOf(['lunch', 'snack']).isRequired + }) + ).isRequired +};Update your CSS to use the new class names:
.scan-lunch { background-color: green; } .scan-snack { background-color: brown; }frontend/src/components/QRScanner/QRScanner.js (2)
12-14: Improve error handling by propagating errors to parent component.Currently, errors are only logged to console. Consider propagating errors to the parent component for better error handling.
- const handleError = (err) => { - console.error('QR Scanner error:', err); - }; + const handleError = (err) => { + console.error('QR Scanner error:', err); + if (onError) { + onError(err); + } + };
18-23: Move configuration values and styles to constants/CSS.The delay value and styles are hardcoded. Consider moving them to configuration constants and CSS file.
+const SCAN_DELAY = 300; + const QRScanner = ({ onScan }) => { // ... component code ... <QrReader - delay={300} + delay={SCAN_DELAY} onError={handleError} onScan={handleScan} - style={{ width: '100%' }} + className="qr-reader" />And in QRScanner.css:
.qr-reader { width: 100%; }frontend/src/components/Lunch/Lunch.js (1)
9-17: Add loading state and improve error handling.The component lacks a loading state during API calls and could benefit from better error handling.
const Lunch = () => { const [scanned, setScanned] = useState(false); + const [isLoading, setIsLoading] = useState(false); + const [error, setError] = useState(null); const handleScan = async (data) => { + setIsLoading(true); + setError(null); try { await scan('lunch', token); setScanned(true); } catch (err) { new Audio(beepSound).play(); - alert(err.message); + setError(err.message); } + setIsLoading(false); };frontend/src/App.css (2)
11-13: Optimize animation performance.Using
will-changewithout a strong reason can harm performance.- will-change: filter; transition: filter 300ms;Only add
will-changewhen you've measured performance issues.
30-34: Enhance animation accessibility.The media query respects
prefers-reduced-motion, which is good for accessibility. However, consider adding a class to allow users to toggle animations manually.@media (prefers-reduced-motion: no-preference) { - a:nth-of-type(2) .logo { + .animate-logo { animation: logo-spin infinite 20s linear; } }frontend/src/index.css (2)
1-14: Global Styles Using :root
The :root block defines fundamental typography and layout properties, ensuring a consistent look across the application. The use of multiple system fonts increases compatibility, and defining the color-scheme for both light and dark modes is a smart inclusion. For easier future theme customization, consider abstracting color values into CSS variables.
57-68: Responsive Adjustments via Media Query
The media query effectively alters global styles for users with a light color scheme preference. Overriding colors and button backgrounds within the query promotes accessibility and a cleaner look in light mode. Documenting or abstracting these color values into CSS variables could aid future maintenance and theme adjustments.
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⛔ Files ignored due to path filters (2)
frontend/package-lock.jsonis excluded by!**/package-lock.jsonfrontend/public/beep.mp3is excluded by!**/*.mp3
📒 Files selected for processing (21)
README.md(1 hunks)frontend/.gitignore(1 hunks)frontend/README.md(1 hunks)frontend/eslint.config.js(1 hunks)frontend/index.html(1 hunks)frontend/package.json(1 hunks)frontend/public/index.html(1 hunks)frontend/src/App.css(1 hunks)frontend/src/App.js(1 hunks)frontend/src/App.jsx(1 hunks)frontend/src/components/Calender/Calender.js(1 hunks)frontend/src/components/Dashboard/Dashboard.js(1 hunks)frontend/src/components/Login/Login.js(1 hunks)frontend/src/components/Lunch/Lunch.js(1 hunks)frontend/src/components/QRScanner/QRScanner.css(1 hunks)frontend/src/components/QRScanner/QRScanner.js(1 hunks)frontend/src/components/Snack/Snack.js(1 hunks)frontend/src/index.css(1 hunks)frontend/src/index.js(1 hunks)frontend/src/main.jsx(1 hunks)frontend/vite.config.js(1 hunks)
✅ Files skipped from review due to trivial changes (7)
- frontend/README.md
- frontend/vite.config.js
- frontend/src/index.js
- frontend/public/index.html
- frontend/src/components/QRScanner/QRScanner.css
- frontend/.gitignore
- frontend/index.html
🔇 Additional comments (12)
frontend/src/main.jsx (1)
1-10: LGTM! Well-structured React entry point.The setup follows React 18's best practices using StrictMode and createRoot.
frontend/src/components/Snack/Snack.js (1)
1-31: Component has identical issues as Lunch component.Please refer to the review comments on the Lunch component. The same improvements regarding token management, error handling, loading states, and component sharing apply here.
frontend/eslint.config.js (1)
20-20: 🌐 Web query:What is the latest version of React?💡 Result:
The latest stable version of React is **19.0**, released on December 5, 2024[1][2][7][10]. This major update introduces features like Actions for simplified data handling, new hooks (`useActionState`, `useFormStatus`, `useOptimistic`), improved hydration performance, and full support for Server Components[2][7]. Key details about React versions: - **React follows semantic versioning**, with major releases introducing new features/breaking changes[4]. - **React 19** replaces React 18 (released March 29, 2022) as the current stable version[4][5]. - The upgrade path recommends first updating to **React 18.3.x** to surface deprecation warnings before moving to v19[2]. To verify your installed version: ```bash npm list react # Should show [email protected] ``` For new projects using create-react-app or modern frameworks like Next.js/Remix, React v19 is now the default[6][7]. Existing applications can follow the official upgrade guide for migration steps[7]. Citations: - 1: https://react.dev/versions - 2: https://github.com/facebook/react/releases - 3: https://en.wikipedia.org/wiki/React_(JavaScript_library) - 4: https://endoflife.date/react - 5: https://www.scalablepath.com/react/react-18-release-features - 6: https://www.w3schools.com/react/react_upgrade.asp - 7: https://react.dev/blog/2024/12/05/react-19 - 8: https://www.simplilearn.com/tutorials/reactjs-tutorial/react-eighteen-new-features - 9: https://legacy.reactjs.org/versions - 10: https://www.npmjs.com/package/reactREADME.md (1)
1-8: LGTM!The README provides clear and concise information about the React + Vite setup and available plugins.
frontend/package.json (4)
1-5: Project Metadata and Configuration Setup
The file correctly marks the project as private and sets "type" to "module", which is appropriate for modern JS applications. The version "0.0.0" indicates an initial development state—just be sure to update it as the project matures.
6-11: Development Scripts and Workflow
The defined scripts (dev, build, lint, preview) provide a solid foundation for working with Vite. They cover the key commands for developing and serving the app. If needed, you might consider adding an alias like "start" for development convenience, but the current setup is clear and functional.
12-18: Dependencies Configuration
The core dependencies are correctly declared; however, the usage of React and React DOM at "^19.0.0" is unusual since the widely adopted stable version is typically in the 18.x range. Additionally, "react-qr-reader" is set to a beta release ("^3.0.0-beta-1"), which may come with instability. Please verify that these versions are intentional and align with your project’s requirements.
19-30: DevDependencies and Tooling Setup
The devDependencies include modern ESLint configurations, type definitions, and Vite plugins that support React. This comprehensive setup will help maintain code quality and consistency throughout development.frontend/src/index.css (4)
16-23: Anchor Tag Styling
The styles for anchor tags (including hover effects) are clear and maintain a consistent visual identity. Inheritance of text-decoration ensures that links integrate well with surrounding text.
25-31: Body Layout Configuration
The body styling removes default margins and applies a flex layout with center alignment, ensuring that the application has a responsive and accessible structure across various viewports.
33-36: Heading Typography Settings
The h1 styles provide a prominent font size and a comfortable line height, making headings clear and easy to read.
38-55: Button Styling with Interaction States
Buttons are styled with attention to usability, including rounded corners, padding, and defined transitions for hover and focus states. This enhances user interaction while maintaining accessibility through proper focus outlines.
| const QRScanner = ({ onScan }) => { | ||
| const handleScan = (data) => { | ||
| if (data) { | ||
| onScan(data); | ||
| } | ||
| }; | ||
|
|
||
| const handleError = (err) => { | ||
| console.error('QR Scanner error:', err); | ||
| }; | ||
|
|
||
| return ( | ||
| <div className="qr-scanner"> | ||
| <QrReader | ||
| delay={300} | ||
| onError={handleError} | ||
| onScan={handleScan} | ||
| style={{ width: '100%' }} | ||
| /> | ||
| </div> | ||
| ); | ||
| }; |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add PropTypes validation for the onScan prop.
The component accepts an onScan prop but lacks prop type validation.
Add PropTypes validation:
+import PropTypes from 'prop-types';
const QRScanner = ({ onScan }) => {
// ... component code ...
};
+
+QRScanner.propTypes = {
+ onScan: PropTypes.func.isRequired
+};📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const QRScanner = ({ onScan }) => { | |
| const handleScan = (data) => { | |
| if (data) { | |
| onScan(data); | |
| } | |
| }; | |
| const handleError = (err) => { | |
| console.error('QR Scanner error:', err); | |
| }; | |
| return ( | |
| <div className="qr-scanner"> | |
| <QrReader | |
| delay={300} | |
| onError={handleError} | |
| onScan={handleScan} | |
| style={{ width: '100%' }} | |
| /> | |
| </div> | |
| ); | |
| }; | |
| import PropTypes from 'prop-types'; | |
| const QRScanner = ({ onScan }) => { | |
| const handleScan = (data) => { | |
| if (data) { | |
| onScan(data); | |
| } | |
| }; | |
| const handleError = (err) => { | |
| console.error('QR Scanner error:', err); | |
| }; | |
| return ( | |
| <div className="qr-scanner"> | |
| <QrReader | |
| delay={300} | |
| onError={handleError} | |
| onScan={handleScan} | |
| style={{ width: '100%' }} | |
| /> | |
| </div> | |
| ); | |
| }; | |
| QRScanner.propTypes = { | |
| onScan: PropTypes.func.isRequired | |
| }; |
| import React, { useState } from 'react'; | ||
| import QRScanner from '../QRScanner/QRScanner'; | ||
| import { scan } from '../../utils/api'; | ||
| import beepSound from '../../assets/beep.mp3'; | ||
|
|
||
| const Lunch = () => { | ||
| const [scanned, setScanned] = useState(false); | ||
|
|
||
| const handleScan = async (data) => { | ||
| try { | ||
| await scan('lunch', localStorage.getItem('token')); | ||
| setScanned(true); | ||
| } catch (err) { | ||
| new Audio(beepSound).play(); | ||
| alert(err.message); | ||
| } | ||
| }; | ||
|
|
||
| return ( | ||
| <div className="lunch-container"> | ||
| <h2>Lunch</h2> | ||
| {!scanned ? ( | ||
| <QRScanner onScan={handleScan} /> | ||
| ) : ( | ||
| <p>Lunch scanned successfully!</p> | ||
| )} | ||
| </div> | ||
| ); | ||
| }; | ||
|
|
||
| export default Lunch; No newline at end of file |
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🛠️ Refactor suggestion
Consider creating a shared scanning component.
The Lunch and Snack components share similar logic. Consider creating a shared component to reduce code duplication.
Create a new shared component:
// components/Scanner/Scanner.js
const Scanner = ({ type, title }) => {
const [scanned, setScanned] = useState(false);
const [isLoading, setIsLoading] = useState(false);
const [error, setError] = useState(null);
const { token } = useAuth();
const handleScan = async (data) => {
setIsLoading(true);
setError(null);
try {
await scan(type, token);
setScanned(true);
} catch (err) {
new Audio(beepSound).play();
setError(err.message);
}
setIsLoading(false);
};
return (
<div className={`${type}-container`}>
<h2>{title}</h2>
{error && <div className="error">{error}</div>}
{isLoading ? (
<div>Scanning...</div>
) : !scanned ? (
<QRScanner onScan={handleScan} />
) : (
<p>{title} scanned successfully!</p>
)}
</div>
);
};Then use it in both components:
const Lunch = () => <Scanner type="lunch" title="Lunch" />;
const Snack = () => <Scanner type="snack" title="Snack" />;|
|
||
| const handleScan = async (data) => { | ||
| try { | ||
| await scan('lunch', localStorage.getItem('token')); |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Avoid direct localStorage access and validate token.
Direct localStorage access should be avoided. Consider using a custom hook or auth context for token management.
+import { useAuth } from '../../contexts/AuthContext';
+
const Lunch = () => {
+ const { token } = useAuth();
// ... component code ...
try {
- await scan('lunch', localStorage.getItem('token'));
+ if (!token) {
+ throw new Error('Authentication required');
+ }
+ await scan('lunch', token);📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| await scan('lunch', localStorage.getItem('token')); | |
| import React from 'react'; | |
| import { useAuth } from '../../contexts/AuthContext'; | |
| // ... other necessary imports ... | |
| const Lunch = () => { | |
| const { token } = useAuth(); | |
| // ... component code ... | |
| try { | |
| if (!token) { | |
| throw new Error('Authentication required'); | |
| } | |
| await scan('lunch', token); | |
| // ... additional code ... | |
| } catch (error) { | |
| // ... error handling ... | |
| } | |
| }; | |
| export default Lunch; |
| ecmaVersion: 2020, | ||
| globals: globals.browser, |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Align ECMAScript version configurations.
The configuration has inconsistent ECMAScript version settings:
- Line 12:
ecmaVersion: 2020 - Line 15:
ecmaVersion: 'latest'
This might lead to confusion about which ECMAScript features are supported.
languageOptions: {
- ecmaVersion: 2020,
+ ecmaVersion: 'latest',
globals: globals.browser,
parserOptions: {
- ecmaVersion: 'latest',
+ ecmaVersion: 2023,
ecmaFeatures: { jsx: true },
sourceType: 'module',
},Also applies to: 15-18
| 'react/jsx-no-target-blank': 'off', | ||
| 'react-refresh/only-export-components': [ | ||
| 'warn', | ||
| { allowConstantExport: true }, | ||
| ], |
There was a problem hiding this comment.
Consider security implications of disabling target="_blank" rule.
The react/jsx-no-target-blank rule is disabled, which could expose the application to security vulnerabilities when using external links.
Instead of disabling the rule completely, consider enabling it with options:
- 'react/jsx-no-target-blank': 'off',
+ 'react/jsx-no-target-blank': ['error', {
+ allowReferrer: true,
+ warnOnSpreadAttributes: true,
+ }],📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| 'react/jsx-no-target-blank': 'off', | |
| 'react-refresh/only-export-components': [ | |
| 'warn', | |
| { allowConstantExport: true }, | |
| ], | |
| 'react/jsx-no-target-blank': ['error', { | |
| allowReferrer: true, | |
| warnOnSpreadAttributes: true, | |
| }], | |
| 'react-refresh/only-export-components': [ | |
| 'warn', | |
| { allowConstantExport: true }, | |
| ], |
| return ( | ||
| <div className="login-container"> | ||
| <h1>Login</h1> | ||
| <input | ||
| type="text" | ||
| placeholder="Username" | ||
| value={username} | ||
| onChange={(e) => setUsername(e.target.value)} | ||
| /> | ||
| <input | ||
| type="password" | ||
| placeholder="Password" | ||
| value={password} | ||
| onChange={(e) => setPassword(e.target.value)} | ||
| /> | ||
| <button onClick={handleLogin}>Login</button> | ||
| </div> | ||
| ); |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add form submission handling and input validation.
The form lacks proper submission handling and input validation.
return (
<div className="login-container">
<h1>Login</h1>
- <input
- type="text"
- placeholder="Username"
- value={username}
- onChange={(e) => setUsername(e.target.value)}
- />
- <input
- type="password"
- placeholder="Password"
- value={password}
- onChange={(e) => setPassword(e.target.value)}
- />
- <button onClick={handleLogin}>Login</button>
+ <form onSubmit={(e) => {
+ e.preventDefault();
+ handleLogin();
+ }}>
+ <input
+ type="text"
+ placeholder="Username"
+ value={username}
+ onChange={(e) => setUsername(e.target.value)}
+ required
+ minLength={3}
+ />
+ <input
+ type="password"
+ placeholder="Password"
+ value={password}
+ onChange={(e) => setPassword(e.target.value)}
+ required
+ minLength={8}
+ />
+ <button type="submit">Login</button>
+ </form>
</div>
);📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| return ( | |
| <div className="login-container"> | |
| <h1>Login</h1> | |
| <input | |
| type="text" | |
| placeholder="Username" | |
| value={username} | |
| onChange={(e) => setUsername(e.target.value)} | |
| /> | |
| <input | |
| type="password" | |
| placeholder="Password" | |
| value={password} | |
| onChange={(e) => setPassword(e.target.value)} | |
| /> | |
| <button onClick={handleLogin}>Login</button> | |
| </div> | |
| ); | |
| return ( | |
| <div className="login-container"> | |
| <h1>Login</h1> | |
| <form onSubmit={(e) => { | |
| e.preventDefault(); | |
| handleLogin(); | |
| }}> | |
| <input | |
| type="text" | |
| placeholder="Username" | |
| value={username} | |
| onChange={(e) => setUsername(e.target.value)} | |
| required | |
| minLength={3} | |
| /> | |
| <input | |
| type="password" | |
| placeholder="Password" | |
| value={password} | |
| onChange={(e) => setPassword(e.target.value)} | |
| required | |
| minLength={8} | |
| /> | |
| <button type="submit">Login</button> | |
| </form> | |
| </div> | |
| ); |
| } catch (err) { | ||
| alert('Invalid credentials'); | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Improve error handling and user feedback.
The current error handling only shows a generic "Invalid credentials" message.
} catch (err) {
- alert('Invalid credentials');
+ const errorMessage = err.response?.data?.message || 'Invalid credentials';
+ // Use a proper UI component for error messages
+ setError(errorMessage);
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| } catch (err) { | |
| alert('Invalid credentials'); | |
| } | |
| } catch (err) { | |
| const errorMessage = err.response?.data?.message || 'Invalid credentials'; | |
| // Use a proper UI component for error messages | |
| setError(errorMessage); | |
| } |
| const handleLogin = async () => { | ||
| try { | ||
| const token = await login(username, password); | ||
| localStorage.setItem('token', token); |
There was a problem hiding this comment.
Enhance token storage security.
Storing tokens in localStorage makes them vulnerable to XSS attacks.
Consider using more secure alternatives:
- Use httpOnly cookies for token storage
- If localStorage is required, implement additional security measures:
- localStorage.setItem('token', token);
+ // Encrypt token before storage
+ const encryptedToken = encryptData(token);
+ localStorage.setItem('token', encryptedToken);Committable suggestion skipped: line range outside the PR's diff.
There was a problem hiding this comment.
Actionable comments posted: 7
🧹 Nitpick comments (4)
Backend/routes/auth.js (1)
1-2: Fix inconsistent spacing around operators.There are missing spaces around the assignment operators.
-const express= require('express'); -const { register, login } = require('../controllers/authController'); +const express = require('express'); +const { register, login } = require('../controllers/authController');Backend/routes/scan.js (1)
1-3: Fix inconsistent spacing around operators.There are missing spaces around the assignment and destructuring operators.
-const express= require('express'); -const { scan }= require('../controllers/scanController'); -const { authenticate }= require('../middleware/auth'); +const express = require('express'); +const { scan } = require('../controllers/scanController'); +const { authenticate } = require('../middleware/auth');Backend/models/Scan.js (1)
1-6: Fix formatting and LGTM on schema implementation.The schema is well-structured with proper references and enums, but has some formatting issues.
-const mongoose= require('mongoose'); -const scanSchema =new mongoose.Schema({ //Scan date update in db - userId: { type: mongoose.Schema.Types.ObjectId, ref: 'User', required: true }, - type: { type: String, enum: ['lunch', 'snack'], required: true }, - date :{ type: Date, default: Date.now}, +const mongoose = require('mongoose'); +const scanSchema = new mongoose.Schema({ + userId: { type: mongoose.Schema.Types.ObjectId, ref: 'User', required: true }, + type: { type: String, enum: ['lunch', 'snack'], required: true }, + date: { type: Date, default: Date.now }Backend/config/db.js (1)
3-14: Add connection retry logic and MongoDB options for production readiness.While the basic connection setup is good, consider these production-ready enhancements:
- Add connection retry logic for resilience
- Configure write concern and read preference
const connectDB = async () => { try { await mongoose.connect(process.env.MONGO_URI, { useNewUrlParser: true, - useUnifiedTopology: true + useUnifiedTopology: true, + w: 'majority', + readPreference: 'primary', + retryWrites: true, + serverSelectionTimeoutMS: 5000, + socketTimeoutMS: 45000 }); console.log('MongoDB connected'); } catch (err) { console.error('MongoDB connection error:', err); - process.exit(1); + // Retry connection + console.log('Retrying connection in 5 seconds...'); + setTimeout(connectDB, 5000); } };
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📒 Files selected for processing (12)
Backend/.env(1 hunks)Backend/Server.js(1 hunks)Backend/config/db.js(1 hunks)Backend/controllers/authController.js(1 hunks)Backend/controllers/scanController.js(1 hunks)Backend/middleware/auth.js(1 hunks)Backend/models/Scan.js(1 hunks)Backend/models/User.js(1 hunks)Backend/routes/auth.js(1 hunks)Backend/routes/scan.js(1 hunks)README.md(2 hunks)frontend/r.md(1 hunks)
✅ Files skipped from review due to trivial changes (1)
- frontend/r.md
🚧 Files skipped from review as they are similar to previous changes (1)
- README.md
🔇 Additional comments (3)
Backend/routes/auth.js (1)
6-7: LGTM! Clean route implementation.The authentication routes are well-structured and follow RESTful conventions.
Let's verify the controller implementation:
✅ Verification successful
🏁 Script executed:
#!/bin/bash # Verify the authController implementation ast-grep --pattern 'exports.$_ = async (req, res) => { $$$ }'Length of output: 4742
Verified: Auth Controller Implementation
The
authControllerexports bothregisterandloginas asynchronous functions with the expected logic for handling registration and login. The code snippet inBackend/controllers/authController.jsconfirms that both functions are defined and follow proper error handling, async patterns, and use of necessary libraries (bcrypt, jwt, etc.), consistent with RESTful principles.
- Verified file: Backend/controllers/authController.js
- Functions:
register: Hashes the password, creates a new user, and returns a success response.login: Checks credentials, validates the password with bcrypt, and generates a JWT for authenticated access.Backend/routes/scan.js (1)
7-7: 🏁 Script executed:#!/bin/bash # Verify the authenticate middleware implementation ast-grep --pattern 'exports.$_ = async (req, res, next) => { $$$ }' # Verify the scan controller implementation ast-grep --pattern 'exports.scan = async (req, res) => { $$$ }'Length of output: 2718
Backend/models/User.js (1)
3-7: 🏁 Script executed:#!/bin/bash # Check if bcrypt is listed in package.json grep -r "bcrypt" package.jsonLength of output: 75
| exports.authenticate= (req,res,next) => { | ||
| const token=req.header('Authorization'); | ||
| if (!token) return res.status(401).json({ error: 'Access denied' }); | ||
|
|
||
| try{ | ||
| const decoded= jwt.verify(token, jwtSecret); | ||
| req.userId= decoded.userId; | ||
| next(); | ||
| } catch (err) { | ||
| res.status(400).json({ error: 'Invalid token' }); | ||
| } | ||
| }; No newline at end of file |
There was a problem hiding this comment.
Enhance JWT authentication security.
Several security improvements are recommended:
- Validate Bearer scheme
- Add explicit token expiration check
- Use specific error messages
-exports.authenticate= (req,res,next) => {
- const token=req.header('Authorization');
- if (!token) return res.status(401).json({ error: 'Access denied' });
+exports.authenticate = (req, res, next) => {
+ const authHeader = req.header('Authorization');
+ if (!authHeader) {
+ return res.status(401).json({ error: 'No authorization header' });
+ }
+
+ if (!authHeader.startsWith('Bearer ')) {
+ return res.status(401).json({ error: 'Invalid authorization scheme' });
+ }
+
+ const token = authHeader.split(' ')[1];
try{
- const decoded= jwt.verify(token, jwtSecret);
- req.userId= decoded.userId;
+ const decoded = jwt.verify(token, jwtSecret);
+
+ // Check token expiration
+ if (decoded.exp < Date.now() / 1000) {
+ return res.status(401).json({ error: 'Token has expired' });
+ }
+
+ req.userId = decoded.userId;
next();
} catch (err) {
- res.status(400).json({ error: 'Invalid token' });
+ if (err.name === 'JsonWebTokenError') {
+ return res.status(401).json({ error: 'Invalid token signature' });
+ }
+ res.status(500).json({ error: 'Internal server error' });
}
};📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| exports.authenticate= (req,res,next) => { | |
| const token=req.header('Authorization'); | |
| if (!token) return res.status(401).json({ error: 'Access denied' }); | |
| try{ | |
| const decoded= jwt.verify(token, jwtSecret); | |
| req.userId= decoded.userId; | |
| next(); | |
| } catch (err) { | |
| res.status(400).json({ error: 'Invalid token' }); | |
| } | |
| }; | |
| exports.authenticate = (req, res, next) => { | |
| const authHeader = req.header('Authorization'); | |
| if (!authHeader) { | |
| return res.status(401).json({ error: 'No authorization header' }); | |
| } | |
| if (!authHeader.startsWith('Bearer ')) { | |
| return res.status(401).json({ error: 'Invalid authorization scheme' }); | |
| } | |
| const token = authHeader.split(' ')[1]; | |
| try{ | |
| const decoded = jwt.verify(token, jwtSecret); | |
| // Check token expiration | |
| if (decoded.exp < Date.now() / 1000) { | |
| return res.status(401).json({ error: 'Token has expired' }); | |
| } | |
| req.userId = decoded.userId; | |
| next(); | |
| } catch (err) { | |
| if (err.name === 'JsonWebTokenError') { | |
| return res.status(401).json({ error: 'Invalid token signature' }); | |
| } | |
| res.status(500).json({ error: 'Internal server error' }); | |
| } | |
| }; |
Backend/Server.js
Outdated
| const connectDB = require('./config/db'); | ||
|
|
||
| const express= require('express'); | ||
| const cors = require('cors'); | ||
|
|
||
|
|
||
| const authRoutes = require('./routes/auth'); | ||
| const scanRoutes= require('./routes/scan'); | ||
|
|
||
| app.use(corse()); | ||
| app.use(express.json()); | ||
|
|
||
| connectDB(); | ||
|
|
||
| app.use('/api/auth', authRoutes); | ||
| app.use('/api/scan', scanRoutes); | ||
| require('dotenv').config(); | ||
|
|
||
|
|
||
| app.get('/',(req,res)=>{ | ||
| res.send('Digital MESS Card'); //Route | ||
| }); | ||
|
|
||
| const PORT= process.env.PORT || 5000; | ||
| app.listen(PORT, () => { | ||
| console.log(`Server running on http://localhost:${PORT}`); | ||
| }); No newline at end of file |
There was a problem hiding this comment.
Fix critical server setup issues.
Several critical issues need to be addressed:
appis not initialized before use- Typo in
corse() dotenvshould be configured before any environment variable usage- Missing error handling middleware
+require('dotenv').config();
const connectDB = require('./config/db');
const express= require('express');
const cors = require('cors');
+const app = express();
const authRoutes = require('./routes/auth');
const scanRoutes= require('./routes/scan');
-app.use(corse());
+app.use(cors());
app.use(express.json());
connectDB();
app.use('/api/auth', authRoutes);
app.use('/api/scan', scanRoutes);
-require('dotenv').config();
+// Error handling middleware
+app.use((err, req, res, next) => {
+ console.error(err.stack);
+ res.status(500).json({ error: 'Something broke!' });
+});
app.get('/',(req,res)=>{
res.send('Digital MESS Card'); //Route
});
const PORT= process.env.PORT || 5000;
app.listen(PORT, () => {
console.log(`Server running on http://localhost:${PORT}`);
});📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const connectDB = require('./config/db'); | |
| const express= require('express'); | |
| const cors = require('cors'); | |
| const authRoutes = require('./routes/auth'); | |
| const scanRoutes= require('./routes/scan'); | |
| app.use(corse()); | |
| app.use(express.json()); | |
| connectDB(); | |
| app.use('/api/auth', authRoutes); | |
| app.use('/api/scan', scanRoutes); | |
| require('dotenv').config(); | |
| app.get('/',(req,res)=>{ | |
| res.send('Digital MESS Card'); //Route | |
| }); | |
| const PORT= process.env.PORT || 5000; | |
| app.listen(PORT, () => { | |
| console.log(`Server running on http://localhost:${PORT}`); | |
| }); | |
| require('dotenv').config(); | |
| const connectDB = require('./config/db'); | |
| const express = require('express'); | |
| const cors = require('cors'); | |
| const app = express(); | |
| const authRoutes = require('./routes/auth'); | |
| const scanRoutes = require('./routes/scan'); | |
| app.use(cors()); | |
| app.use(express.json()); | |
| connectDB(); | |
| app.use('/api/auth', authRoutes); | |
| app.use('/api/scan', scanRoutes); | |
| // Error handling middleware | |
| app.use((err, req, res, next) => { | |
| console.error(err.stack); | |
| res.status(500).json({ error: 'Something broke!' }); | |
| }); | |
| app.get('/', (req, res) => { | |
| res.send('Digital MESS Card'); //Route | |
| }); | |
| const PORT = process.env.PORT || 5000; | |
| app.listen(PORT, () => { | |
| console.log(`Server running on http://localhost:${PORT}`); | |
| }); |
| exports.register = async (req, res) => { //to register new user | ||
| const { username, password } = req.body; | ||
| try { | ||
| const hashedPassword = await bcrypt.hash(password, 10); | ||
| const user = new User({ username, password: hashedPassword }); | ||
| await user.save(); | ||
| res.status(201).json({ message: 'User registered successfully' }); | ||
| } catch (err) { | ||
| res.status(500).json({ error: 'Error registering user' }); | ||
| } | ||
| }; |
There was a problem hiding this comment.
Add input validation and security measures to registration.
The registration endpoint needs several security improvements:
- Input validation
- Password complexity requirements
- Rate limiting
- Secure error handling
+const { body, validationResult } = require('express-validator');
+const rateLimit = require('express-rate-limit');
+
+const registerLimiter = rateLimit({
+ windowMs: 60 * 60 * 1000, // 1 hour
+ max: 5 // limit each IP to 5 registration requests per hour
+});
+
-exports.register = async (req, res) => {
+exports.register = [
+ registerLimiter,
+ body('username').trim().isLength({ min: 3 }).escape(),
+ body('password')
+ .isLength({ min: 8 })
+ .matches(/^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[^a-zA-Z0-9]).{8,}$/),
+ async (req, res) => {
const { username, password } = req.body;
+
+ const errors = validationResult(req);
+ if (!errors.isEmpty()) {
+ return res.status(400).json({ errors: errors.array() });
+ }
+
try {
const hashedPassword = await bcrypt.hash(password, 10);
const user = new User({ username, password: hashedPassword });
await user.save();
res.status(201).json({ message: 'User registered successfully' });
} catch (err) {
- res.status(500).json({ error: 'Error registering user' });
+ if (err.code === 11000) {
+ return res.status(400).json({ error: 'Username already exists' });
+ }
+ console.error('Registration error:', err);
+ res.status(500).json({ error: 'Internal server error' });
}
-};
+}];📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| exports.register = async (req, res) => { //to register new user | |
| const { username, password } = req.body; | |
| try { | |
| const hashedPassword = await bcrypt.hash(password, 10); | |
| const user = new User({ username, password: hashedPassword }); | |
| await user.save(); | |
| res.status(201).json({ message: 'User registered successfully' }); | |
| } catch (err) { | |
| res.status(500).json({ error: 'Error registering user' }); | |
| } | |
| }; | |
| const { body, validationResult } = require('express-validator'); | |
| const rateLimit = require('express-rate-limit'); | |
| const registerLimiter = rateLimit({ | |
| windowMs: 60 * 60 * 1000, // 1 hour | |
| max: 5 // limit each IP to 5 registration requests per hour | |
| }); | |
| exports.register = [ | |
| registerLimiter, | |
| body('username').trim().isLength({ min: 3 }).escape(), | |
| body('password') | |
| .isLength({ min: 8 }) | |
| .matches(/^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[^a-zA-Z0-9]).{8,}$/), | |
| async (req, res) => { | |
| const { username, password } = req.body; | |
| const errors = validationResult(req); | |
| if (!errors.isEmpty()) { | |
| return res.status(400).json({ errors: errors.array() }); | |
| } | |
| try { | |
| const hashedPassword = await bcrypt.hash(password, 10); | |
| const user = new User({ username, password: hashedPassword }); | |
| await user.save(); | |
| res.status(201).json({ message: 'User registered successfully' }); | |
| } catch (err) { | |
| if (err.code === 11000) { | |
| return res.status(400).json({ error: 'Username already exists' }); | |
| } | |
| console.error('Registration error:', err); | |
| res.status(500).json({ error: 'Internal server error' }); | |
| } | |
| } | |
| ]; |
| exports.login = async (req, res) => { //Authenticate access | ||
| const { username, password } = req.body; | ||
| try { | ||
| const user= await User.findOne({ username }); | ||
| if (!user || !(await bcrypt.compare(password, user.password))) { // //to check whether the login details are valid | ||
| return res.status(400).json({ error: 'Invalid credentials' }); | ||
| } | ||
| const token= jwt.sign({ userId: user._id }, jwtSecret, { expiresIn: '1h' }); | ||
| res.json({ token }); | ||
| } catch (err) { | ||
| res.status(500).json({ error: 'Error logging in' }); | ||
| } | ||
| }; No newline at end of file |
There was a problem hiding this comment.
Enhance login security with rate limiting and secure error handling.
The login endpoint needs similar security improvements:
- Rate limiting to prevent brute force attacks
- Secure error handling
- Constant-time comparison
+const loginLimiter = rateLimit({
+ windowMs: 15 * 60 * 1000, // 15 minutes
+ max: 5 // limit each IP to 5 login attempts per 15 minutes
+});
+
-exports.login = async (req, res) => {
+exports.login = [
+ loginLimiter,
+ body('username').trim().escape(),
+ body('password').trim(),
+ async (req, res) => {
const { username, password } = req.body;
+
+ const errors = validationResult(req);
+ if (!errors.isEmpty()) {
+ return res.status(400).json({ errors: errors.array() });
+ }
+
try {
const user= await User.findOne({ username });
- if (!user || !(await bcrypt.compare(password, user.password))) {
+ // Use constant-time comparison to prevent timing attacks
+ const isValid = user ? await bcrypt.compare(password, user.password) : false;
+ if (!isValid) {
return res.status(400).json({ error: 'Invalid credentials' });
}
const token= jwt.sign({ userId: user._id }, jwtSecret, { expiresIn: '1h' });
res.json({ token });
} catch (err) {
- res.status(500).json({ error: 'Error logging in' });
+ console.error('Login error:', err);
+ res.status(500).json({ error: 'Internal server error' });
}
-};
+}];📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| exports.login = async (req, res) => { //Authenticate access | |
| const { username, password } = req.body; | |
| try { | |
| const user= await User.findOne({ username }); | |
| if (!user || !(await bcrypt.compare(password, user.password))) { // //to check whether the login details are valid | |
| return res.status(400).json({ error: 'Invalid credentials' }); | |
| } | |
| const token= jwt.sign({ userId: user._id }, jwtSecret, { expiresIn: '1h' }); | |
| res.json({ token }); | |
| } catch (err) { | |
| res.status(500).json({ error: 'Error logging in' }); | |
| } | |
| }; | |
| const loginLimiter = rateLimit({ | |
| windowMs: 15 * 60 * 1000, // 15 minutes | |
| max: 5 // limit each IP to 5 login attempts per 15 minutes | |
| }); | |
| exports.login = [ | |
| loginLimiter, | |
| body('username').trim().escape(), | |
| body('password').trim(), | |
| async (req, res) => { | |
| const { username, password } = req.body; | |
| const errors = validationResult(req); | |
| if (!errors.isEmpty()) { | |
| return res.status(400).json({ errors: errors.array() }); | |
| } | |
| try { | |
| const user = await User.findOne({ username }); | |
| // Use constant-time comparison to prevent timing attacks | |
| const isValid = user ? await bcrypt.compare(password, user.password) : false; | |
| if (!isValid) { | |
| return res.status(400).json({ error: 'Invalid credentials' }); | |
| } | |
| const token = jwt.sign({ userId: user._id }, jwtSecret, { expiresIn: '1h' }); | |
| res.json({ token }); | |
| } catch (err) { | |
| console.error('Login error:', err); | |
| res.status(500).json({ error: 'Internal server error' }); | |
| } | |
| } | |
| ]; |
| if (type === 'lunch' && !(hours >= 11 && minutes >= 30 && hours < 14)) { //to check whether scanning of lunch time is valid | ||
| return res.status(400).json({ error: 'Lunch scanning is only allowed between 11:30 AM and 2:00 PM' }); | ||
| } |
There was a problem hiding this comment.
Fix time window validation logic.
The current time window checks have logical errors that could allow scans outside the intended windows:
- For lunch (11:30 AM - 2:00 PM),
hours >= 11 && minutes >= 30fails at 11:00-11:29 - For snacks (3:30 PM - 5:00 PM), similar issue with
hours >= 15 && minutes >= 30
Apply this diff to fix the time window validation:
- if (type === 'lunch' && !(hours >= 11 && minutes >= 30 && hours < 14)) {
+ if (type === 'lunch' && (hours < 11 || (hours === 11 && minutes < 30) || hours >= 14)) {
return res.status(400).json({ error: 'Lunch scanning is only allowed between 11:30 AM and 2:00 PM' });
}
- if (type === 'snack' && !(hours >= 15 && minutes >= 30 && hours < 17)) {
+ if (type === 'snack' && (hours < 15 || (hours === 15 && minutes < 30) || hours >= 17)) {
return res.status(400).json({ error: 'Snack scanning is only allowed between 3:30 PM and 5:00 PM' });
}Also applies to: 15-17
| const { type } = req.body; | ||
| const userId = req.userId; |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add input validation and improve error handling.
The current implementation lacks input validation and uses generic error handling:
- Missing validation for required
typefield - Missing validation for valid scan types
- Generic error message doesn't help with debugging
Apply this diff to add input validation and improve error handling:
const { type } = req.body;
const userId = req.userId;
+ if (!type) {
+ return res.status(400).json({ error: 'Scan type is required' });
+ }
+
+ if (!['lunch', 'snack'].includes(type)) {
+ return res.status(400).json({ error: 'Invalid scan type' });
+ }
try {
const existingScan = await Scan.findOne({ userId, type, date: { $gte: new Date().setHours(0, 0, 0, 0) } });
if (existingScan) {
return res.status(400).json({ error: 'Already scanned today' });
}
const scan = new Scan({ userId, type });
await scan.save();
res.json({ message: 'Scan successful' });
} catch (err) {
- res.status(500).json({ error: 'Error processing scan' });
+ console.error('Scan error:', err);
+ res.status(500).json({
+ error: 'Error processing scan',
+ details: process.env.NODE_ENV === 'development' ? err.message : undefined
+ });
}Also applies to: 19-30
| MONGO_URI=mongodb://localhost:27017/digital-mess-card | ||
| JWT_SECRET=your-secret-key | ||
| PORT=5000 No newline at end of file |
There was a problem hiding this comment.
Security: Update configuration and follow environment file best practices.
-
The JWT secret is using a weak placeholder value
-
MongoDB connection lacks authentication
-
Environment files should not be committed to version control
-
Create a
.env.examplefile instead:
-MONGO_URI=mongodb://localhost:27017/digital-mess-card
-JWT_SECRET=your-secret-key
-PORT=5000
+MONGO_URI=mongodb://<username>:<password>@localhost:27017/digital-mess-card
+JWT_SECRET=<your-strong-secret-key>
+PORT=5000- Add
.envto.gitignore:
+.env- Update MongoDB connection to use authentication:
# Create admin user
mongosh
use admin
db.createUser({
user: "admin",
pwd: "secure_password",
roles: [ { role: "userAdminAnyDatabase", db: "admin" } ]
})
# Create application user
use digital-mess-card
db.createUser({
user: "app_user",
pwd: "secure_password",
roles: [ { role: "readWrite", db: "digital-mess-card" } ]
})- Generate a strong JWT secret:
node -e "console.log(require('crypto').randomBytes(32).toString('hex'))"
There was a problem hiding this comment.
Actionable comments posted: 4
🧹 Nitpick comments (3)
Backend/app.js (3)
7-8: Fix spacing for consistency.Maintain consistent spacing in require statements.
Apply this diff:
-const scanRoutes= require('./routes/scan'); +const scanRoutes = require('./routes/scan');
15-16: Add API versioning and health check endpoint.Consider versioning your API endpoints and adding a health check route.
Apply this diff:
-app.use('/api/auth', authRoutes); -app.use('/api/scan', scanRoutes); +app.use('/api/v1/auth', authRoutes); +app.use('/api/v1/scan', scanRoutes); + +// Health check endpoint +app.get('/health', (req, res) => { + res.status(200).json({ status: 'ok' }); +});
20-22: Enhance root route with API information.The root route could provide more useful information about the API.
Apply this diff:
-app.get('/',(req,res)=>{ - res.send('Digital MESS Card'); //Route -}); +app.get('/', (req, res) => { + res.json({ + name: 'Digital MESS Card API', + version: '1.0', + documentation: '/api/v1/docs' // If you add Swagger/OpenAPI docs + }); +});
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Backend/package-lock.jsonis excluded by!**/package-lock.jsonfrontend/package-lock.jsonis excluded by!**/package-lock.jsonfrontend/public/vite.svgis excluded by!**/*.svgfrontend/src/assets/react.svgis excluded by!**/*.svg
📒 Files selected for processing (11)
Backend/.gitignore(1 hunks)Backend/app.js(1 hunks)Backend/config/db.js(1 hunks)Backend/controllers/authController.js(1 hunks)Backend/middleware/auth.js(1 hunks)Backend/package.json(1 hunks)frontend/README.md(1 hunks)frontend/package.json(1 hunks)frontend/src/pages/Home.js(1 hunks)frontend/src/pages/LoginPage.js(1 hunks)frontend/vite.config.js(1 hunks)
✅ Files skipped from review due to trivial changes (5)
- frontend/src/pages/LoginPage.js
- frontend/README.md
- frontend/src/pages/Home.js
- Backend/.gitignore
- Backend/package.json
🚧 Files skipped from review as they are similar to previous changes (5)
- frontend/vite.config.js
- Backend/middleware/auth.js
- Backend/config/db.js
- Backend/controllers/authController.js
- frontend/package.json
| app.use(cors()); | ||
| app.use(express.json()); |
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🛠️ Refactor suggestion
Add essential security middleware.
Add security middleware and update CORS configuration.
Apply this diff:
-app.use(cors());
+app.use(cors(corsOptions));
app.use(express.json());
+app.use(express.urlencoded({ extended: true }));
+app.use(require('helmet')());
+app.use(require('express-rate-limit')({
+ windowMs: 15 * 60 * 1000, // 15 minutes
+ max: 100 // limit each IP to 100 requests per windowMs
+}));Don't forget to install the required packages:
npm install helmet express-rate-limit| app.use(cors()); | ||
| app.use(express.json()); | ||
|
|
||
| connectDB(); |
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🛠️ Refactor suggestion
Add error handling for database connection.
The database connection should be handled with proper error management.
Apply this diff:
-connectDB();
+connectDB().catch(err => {
+ console.error('Failed to connect to database:', err);
+ process.exit(1);
+});📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| connectDB(); | |
| connectDB().catch(err => { | |
| console.error('Failed to connect to database:', err); | |
| process.exit(1); | |
| }); |
| const PORT= process.env.PORT || 5000; | ||
| app.listen(PORT, () => { | ||
| console.log(`Server running on http://localhost:${PORT}`); | ||
| }); No newline at end of file |
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🛠️ Refactor suggestion
Add graceful shutdown handling and improve logging.
Implement proper server shutdown handling and enhance logging.
Apply this diff:
const PORT = process.env.PORT || 5000;
-app.listen(PORT, () => {
- console.log(`Server running on http://localhost:${PORT}`);
+const server = app.listen(PORT, () => {
+ console.log(`Server running on http://localhost:${PORT}`);
+});
+
+// Graceful shutdown handling
+process.on('SIGTERM', () => {
+ console.log('SIGTERM signal received: closing HTTP server');
+ server.close(() => {
+ console.log('HTTP server closed');
+ process.exit(0);
+ });
});📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const PORT= process.env.PORT || 5000; | |
| app.listen(PORT, () => { | |
| console.log(`Server running on http://localhost:${PORT}`); | |
| }); | |
| const PORT = process.env.PORT || 5000; | |
| const server = app.listen(PORT, () => { | |
| console.log(`Server running on http://localhost:${PORT}`); | |
| }); | |
| // Graceful shutdown handling | |
| process.on('SIGTERM', () => { | |
| console.log('SIGTERM signal received: closing HTTP server'); | |
| server.close(() => { | |
| console.log('HTTP server closed'); | |
| process.exit(0); | |
| }); | |
| }); |
| require('dotenv').config(); | ||
| const express= require('express'); | ||
| const app = express(); | ||
| const cors = require('cors'); | ||
| const connectDB = require('./config/db'); |
There was a problem hiding this comment.
Configure CORS with specific options for security.
The current CORS setup allows requests from any origin. For security, configure CORS with specific options.
Apply this diff:
-const express= require('express');
+const express = require('express');
const app = express();
const cors = require('cors');
+const corsOptions = {
+ origin: process.env.ALLOWED_ORIGINS?.split(',') || 'http://localhost:3000',
+ methods: ['GET', 'POST'],
+ credentials: true,
+ optionsSuccessStatus: 204
+};📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| require('dotenv').config(); | |
| const express= require('express'); | |
| const app = express(); | |
| const cors = require('cors'); | |
| const connectDB = require('./config/db'); | |
| require('dotenv').config(); | |
| const express = require('express'); | |
| const app = express(); | |
| const cors = require('cors'); | |
| const corsOptions = { | |
| origin: process.env.ALLOWED_ORIGINS?.split(',') || 'http://localhost:3000', | |
| methods: ['GET', 'POST'], | |
| credentials: true, | |
| optionsSuccessStatus: 204 | |
| }; | |
| const connectDB = require('./config/db'); |
Summary by CodeRabbit
New Features
Documentation
Chores