I will integrate firebase auth firestore backend react next js supabase vercel web apps


About this gig
I will integrate Firebase auth, Firestore, Supabase in React Next js app
Hi Valued Buyers,
If you already have a React or Next.js app but the login, database, backend, or deployment is not working the way it should, I can help you connect those pieces properly.
I work on Firebase and Supabase setups for real web app features not just installing packages and leaving the rest unclear. I can help with user signup/login, Firebase Auth, Google authentication, Firestore database structure, Supabase auth, tables, protected pages, dashboard access, environment variables, API connections, and Vercel deployment fixes.
Before touching the setup, I look at how your app is supposed to work. Who should be able to log in? What data should be saved? Which pages should be private? What should happen after signup? Is the issue coming from the frontend, backend, rules, env files, or deployment?
That makes the work cleaner and helps avoid broken auth flows, messy database collections, missing user data, or Vercel errors after deployment.
I can help with SaaS dashboards, MVPs, client portals, admin panels, booking apps, membership platforms, and custom web apps.
Send me a message today
Get to know Chris G
WordPress Funnel, CRM Automation and Web App Integration Expert
- FromNigeria
- Member sinceAug 2024
- Avg. response time2 hours
Languages
English, French, German, Spanish
FAQ
Can you set up Firebase Auth in my React or Next.js app?
Yes. I can set up Firebase Auth for login, signup, logout, and basic user session handling.
Can you connect Firestore to my app?
Yes. I can create Firestore collections and connect your frontend so user or app data saves correctly.
Do you also work with Supabase?
Yes. I can set up Supabase Auth, database tables, API keys, and connect it with React or Next.js.
Can you create protected routes or private pages?
Yes. I can set up protected pages so only logged-in users can access dashboards, portals, or private areas.
Can you fix Firebase or Supabase errors?
Yes. I can check auth issues, database errors, environment variables, permissions, rules, and frontend connection problems.
Can you help deploy the app on Vercel?
Yes. I can help set up Vercel environment variables and fix common deployment issues for React or Next.js apps.
Do you build the full app from scratch?
This gig is mainly for auth, database, backend connection, and deployment setup. Message me first for full app development.
What access do you need to start?
I need your codebase access, Firebase or Supabase project access, Vercel access if needed, and a clear feature description.
Can you add Google login?
Yes. I can add Google authentication if your Firebase or Supabase project supports it and the package includes it.
Should I message you before ordering?
Yes. Please message me first so I can review your app stack, current issue, and recommend the right package.

