Add User Avatar with First Letter in Navbar#24
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Pull request overview
This PR introduces a user avatar + dropdown in the navbar (first letter of the user’s name/email) and, beyond the stated scope in the PR description, also adds a full authentication flow (frontend auth context + protected routing + backend cookie/JWT auth endpoints) to support showing the logged-in user.
Changes:
- Add navbar avatar + user dropdown with logout behavior.
- Add frontend auth flow (Login/Signup pages, AuthContext, ProtectedRoute, route redirects).
- Add backend auth system (User model, register/login/logout/me endpoints, cookie JWT auth, optional Redis integration).
Reviewed changes
Copilot reviewed 22 out of 27 changed files in this pull request and generated 22 comments.
Show a summary per file
| File | Description |
|---|---|
| frontend/tailwind.config.js | Minor formatting change (leading blank line). |
| frontend/src/pages/Signup.jsx | New signup page using AuthContext registration. |
| frontend/src/pages/Login.jsx | New login page using AuthContext login. |
| frontend/src/pages/HomePage.jsx | Adds auth gating + redirects and updated rate-limit handling. |
| frontend/src/main.jsx | Moves routing/provider responsibilities into App (now needs import cleanup). |
| frontend/src/lib/utils.js | Trailing whitespace change. |
| frontend/src/lib/axios.js | Refactors Axios setup (currently hardcodes localhost). |
| frontend/src/index.css | Minor formatting change (leading blank line / tailwind directive formatting). |
| frontend/src/context/AuthContext.jsx | New AuthContext with /auth/me, login/register/logout helpers. |
| frontend/src/components/ProtectedRoute.jsx | New component to guard routes while auth loads. |
| frontend/src/components/Navbar.jsx | Adds avatar + dropdown UI and logout button. |
| frontend/src/App.jsx | Adds BrowserRouter + AuthProvider and protected routes/redirects. |
| frontend/package.json | Adds deps (react-router-dom, axios bump) and adds mern-thinkboard file dependency. |
| frontend/package-lock.json | Lockfile updates for new deps. |
| backend/src/Utils/Validetor.js | New request validation helper for auth registration. |
| backend/src/server.js | Adds cookie parsing, auth routes, redis connection attempt, and refactors startup. |
| backend/src/routes/notesRoutes.js | Trailing whitespace change. |
| backend/src/routes/authRoutes.js | New auth routing (register/login/logout/me). |
| backend/src/models/User.js | New User model. |
| backend/src/middleware/rateLimiter.js | Skips rate limiting in non-production and refactors formatting. |
| backend/src/middleware/authMiddleware.js | New cookie/JWT authentication middleware. |
| backend/src/controllers/userAuth.js | New auth controller (register/login/logout/me) + redis blacklist attempt. |
| backend/src/controllers/notesController.js | Trailing whitespace change. |
| backend/src/config/upstash.js | Refactors Upstash Redis/ratelimit initialization. |
| backend/src/config/redis.js | New Upstash Redis client + connection helper. |
| backend/package.json | Adds auth-related dependencies and mern-thinkboard file dependency. |
| backend/package-lock.json | Lockfile updates for new deps. |
Files not reviewed (2)
- backend/package-lock.json: Language not supported
- frontend/package-lock.json: Language not supported
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| import { StrictMode } from 'react'; | ||
| import { createRoot } from 'react-dom/client'; | ||
| import { BrowserRouter } from 'react-router-dom'; | ||
| import { Toaster } from 'react-hot-toast'; |
| const API_URL = "http://localhost:5001/api"; | ||
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| const api = axios.create({ | ||
| baseURL: BASE_URL, | ||
| baseURL: API_URL, | ||
| headers: { |
| <input | ||
| type="email" | ||
| autoComplete="off" | ||
| placeholder="you@example.com" | ||
| autoComplete="off" |
| type={showPassword ? "text" : "password"} | ||
| placeholder="Enter your password" | ||
| autoComplete="current-password" | ||
| value={password} | ||
| autoComplete="new-password" |
| setError(" Invalid email or password. Please try again."); | ||
| } else if (statusCode === 404) { | ||
| setError(" Account not found. Please sign up first."); | ||
| } else if (statusCode === 500) { | ||
| setError(" Server error. Please try again later."); |
| res.cookie("token", token, { | ||
| maxAge: 60 * 60 * 1000, | ||
| httpOnly: true, | ||
| path: "/", | ||
| }); |
| const token = req.cookies?.token; | ||
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| if (token) { | ||
| const decoded = jwt.decode(token); | ||
| if (decoded && decoded.exp) { | ||
| const ttl = decoded.exp - Math.floor(Date.now() / 1000); | ||
| if (ttl > 0) { | ||
| await redisClient.setex(`blacklist:${token}`, ttl, "blocked"); | ||
| } | ||
| } | ||
| } |
| res.clearCookie("token", { | ||
| httpOnly: true, | ||
| secure: false, | ||
| sameSite: "lax", | ||
| path: "/", | ||
| }); |
| const user = await User.create({ | ||
| name, | ||
| email, | ||
| password: hashedPassword, | ||
| }); |
| } catch (err) { | ||
| res.status(401).json({ error: err.message }); | ||
| } |
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Hey @zaibamachhaliya, thank you so much for putting this together! The PR description mentions adding a user avatar, but I see you've actually gone above and beyond to implement a full JWT authentication flow, Redis integration, and protected routing. That is a massive undertaking, and the structure looks great! |
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Before we can merge this in, there are a few merge conflicts to resolve, along with some critical bugs caught by the Copilot review that need addressing:
Hardcoded API URL: In frontend/src/lib/axios.js, the base URL is hardcoded to http://localhost:5001/api, which will break production builds. Let's swap that to use an environment variable. Package.json Bug: There's an accidental local file dependency ("mern-thinkboard": "file:..") in the package.json files that will cause deployment to fail. Cookie Security: The logout function in userAuth.js hardcodes secure: false when clearing the cookie, which can fail in HTTPS production environments.
Redis Crash: The logoutUser controller attempts to write to Redis without checking if Upstash is actually configured. If it isn't, this will throw a 500 error and prevent users from logging out. Duplicate Emails: The register controller doesn't check for existing users. If someone signs up with an already-used email, MongoDB will throw a duplicate-key crash instead of returning a friendly error to the frontend. Once the conflicts are resolved and these Copilot suggestions are applied, we should be good to go. Let me know if you need any help working through these! |
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Hi @SparshM8, I've resolved all merge conflicts and addressed the requested changes mentioned in the review. The branch has been updated successfully. Could you please review the PR again and let me know if any further changes are needed? Thank you! |
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Hey @zaibamachhaliya, thanks for taking the time to resolve those merge conflicts! I’ve taken another look at the latest commits. While the conflicts are technically resolved, the critical logic bugs Copilot caught in the previous review are unfortunately still present in the backend. Additionally, I noticed some significant frontend changes that fall outside the scope of this PR and break our existing UI framework. We absolutely need these fixed before we can safely merge this into main: Frontend & UI Blockers Massive Scope Creep (Navbar.jsx): A full Dark Mode/Theme toggle (useTheme, Sun/Moon icons) has been added. This PR is meant to be for the User Avatar. Please remove the theme toggle logic so we can keep PRs focused and manageable. Breaking DaisyUI Theming (Navbar.jsx): We use DaisyUI semantic classes (like bg-base-100) to handle theming app-wide. The new commits strip these out and hardcode explicit Tailwind classes (e.g., bg-white dark:bg-gray-900). This breaks consistency with the rest of the application. Please revert the navbar styling back to our DaisyUI standards. Merge Conflict Artifacts: There are some unintended spacing changes left over from resolving conflicts (like changing ml-5 to ml-1 on the avatar wrapper). Please double-check the diff to ensure original layout spacing isn't accidentally modified. Backend & Production Blockers Duplicate User Crash (userAuth.js): The register function still calls User.create directly without checking if the email is already in the database. Please add a check to return a 400/409 error if the user exists so MongoDB doesn't throw an unhandled duplicate-key crash. Cookie Security is Hardcoded (userAuth.js): In logoutUser, res.clearCookie() still has secure: false hardcoded. This will fail to clear the cookie in our HTTPS production environment. Please make this conditional based on the environment (e.g., secure: process.env.NODE_ENV === "production"), and ensure register and login follow the exact same standard. Redis Crash Risk (userAuth.js): The logoutUser controller is still trying to write to the blacklist (redisClient.setex) without checking if the Upstash Redis environment variables are configured, and it isn't wrapped in a try/catch. If Redis isn't connected, this will throw a 500 error and break the logout flow completely. Documentation PR Scope/Title: Once the theme toggle is removed, please update the PR title and description to reflect that this introduces a full JWT authentication flow, Redis integration, and the avatar, rather than just the avatar alone. Let me know once you've pushed these specific fixes—especially restoring the DaisyUI classes and patching those backend crashes—and I'll be happy to give it a final review! |
📌 Issue
Fixes #11
✨ What I Added
📁 Files Changed
frontend/src/components/Navbar.jsx- Added avatar + dropdown🧪 How to Test
✅ Checklist
closes #11