Lovable
realtime
Real-Time Database Sync Not Updating in Lovable
Data changes in your Lovable app don't appear in real-time for other users. When one user creates, updates, or deletes a record, other users (or even the same user in another tab) don't see the change until they manually refresh the page.
Real-time functionality is essential for chat apps, collaborative tools, dashboards, and notification systems. When it breaks, your app feels sluggish and outdated compared to modern web applications.
The issue may be subtle — some tables update in real-time while others don't, or real-time works for inserts but not updates or deletes.
Error Messages You Might See
Realtime connection closed
Subscription error: not authorized
Channel error: timeout
Max Realtime connections reached
Common Causes
- Supabase Realtime not enabled for table — The database table doesn't have Realtime publication enabled in Supabase settings
- Missing subscription setup — The frontend code doesn't subscribe to real-time changes using Supabase's on() method
- RLS blocking Realtime — Row Level Security policies prevent the subscription from receiving updates the user should see
- Channel not cleaned up — Multiple subscriptions accumulate on component re-renders, causing memory leaks and missed events
- Free tier limits — Supabase free tier limits concurrent Realtime connections, dropping connections when exceeded
How to Fix It
- Enable Realtime for the table — In Supabase dashboard → Database → Replication, enable Realtime for the specific table
- Set up subscription correctly — Use supabase.channel('table-changes').on('postgres_changes', { event: '*', schema: 'public', table: 'your_table' }, callback).subscribe()
- Check RLS policies — Ensure your RLS policies allow SELECT for the subscribed user on the rows they need to see
- Clean up subscriptions — In React, return a cleanup function from useEffect that removes the subscription when the component unmounts
- Monitor connection status — Subscribe to channel status changes to detect and handle disconnections
Real developers can help you.
Matt Butler
Software Engineer @ AWS
Dor Yaloz
SW engineer with 6+ years of experience,
I worked with React/Node/Python
did projects with React+Capacitor.js for ios
Supabase expert
hanson1014
Full-stack developer experienced in fixing and deploying AI-generated apps from Lovable, Bolt.new, Cursor, and Replit. I specialize in debugging Supabase integration issues (auth flows, RLS policies, database connections), fixing broken deployments, resolving routing/blank screen problems, and cleaning up messy React/Vite codebases. I also build production apps with the Claude API and have shipped a Mac desktop dev tool (Nexterm from scratch. Based in Hong Kong, fast turnaround.
Costea Adrian
Embedded Engineer specilizing in perception systems. Latest project was a adas camera calibration system.
Richard McSorley
Full-Stack Software Engineer with 8+ years building high-performance applications for enterprise clients. Shipped production systems at Walmart (4,000+ stores), Cigna (20M+ users), and Arkansas Blue Cross. 5 patents in retail/supply chain tech. Currently focused on AI integrations, automation tools, and TypeScript-first architectures.
Anthony Akpan
Developer with 8 years of experience building softwares fro startups
Prakash Prajapati
I’m a Senior Python Developer specializing in building secure, scalable, and highly available systems. I work primarily with Python, Django, FastAPI, Docker, PostgreSQL, and modern AI tooling such as PydanticAI, focusing on clean architecture, strong design principles, and reliable DevOps practices. I enjoy solving complex engineering problems and designing systems that are maintainable, resilient, and built to scale.
Meïr Ankri
Full-stack developer specializing in React / Next.js / Node.js with 6+ years of experience. I've worked across various sectors including automotive (Reezocar/Société Générale), healthcare (Medical Link SaaS), and e-commerce (Glasman). I build web apps end-to-end, from architecture to production, with a focus on scalability, performance, and code quality. I also mentor junior developers and contribute to technical decisions and code reviews.
Krishna Sai Kuncha
Experienced Professional Full stack Developer with 8+ years of experience across react, python, js, ts, golang and react-native. Developed inhouse websearch tooling for AI before websearch was solved : )
rayush33
JavaScript (React.js, React Native, Node.js) Developer with demonstrated industry experience of 4+ years, actively looking for opportunities to hone my skills as well as help small-scale business owners with solutions to technical problems
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Get HelpFrequently Asked Questions
How many real-time connections can I have on the free tier?
Supabase free tier allows up to 200 concurrent Realtime connections. Each browser tab or user session uses at least one connection. If you exceed this, new connections are rejected.
Does Realtime work with Row Level Security?
Yes, but the RLS policies must allow the subscribing user to SELECT the rows they want to receive updates for. If RLS blocks the query, the subscription won't receive events.