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 When it breaks, your app feels sluggish and outdated compared to modern web applications.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
Milan Surelia
Milan Surelia is a Mobile App Developer with 5+ years of experience crafting scalable, cross-platform apps at 7Span and Meticha. At 7Span, he engineers feature-rich Flutter apps with smooth performance and modern UI. As the Co-Founder of Meticha, he builds open-source tools and developer-focused products that solve real-world problems.
Expertise:
💡 Developing cross-platform apps using Flutter, Dart, and Jetpack Compose for Android, iOS, and Web.
🖋️ Sharing insights through technical writing, blogging, and open-source contributions.
🤝 Collaborating closely with designers, PMs, and developers to build seamless mobile experiences.
Notable Achievements:
🎯 Revamped the Vepaar app into Vepaar Store & CRM with a 2x performance boost and smoother UX.
🚀 Launched Compose101 — a Jetpack Compose starter kit to speed up Android development.
🌟 Open source contributions on Github & StackOverflow for Flutter & Dart
🎖️ Worked on improving app performance and user experience with smart solutions.
Milan is always happy to connect, work on new ideas, and explore the latest in technology.
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
Sage Fulcher
Hey I'm Sage! Im a Boston area software engineer who grew up in South Florida. Ive worked at a ton of cool places like a telehealth kidney care startup that took part in a billion dollar merger (Cricket health/Interwell health), a boutique design agency where I got to work on a ton of exciting startups including a photography education app, a collegiate Esports league and more (Philosophie), a data analytics as a service startup in Cambridge (MA) as well as at Phillips and MIT Lincoln Lab where I designed and developed novel network security visualizations and analytics. I've been writing code and furiously devoted to using computers to make people’s lives easier for about 17 years. My degree is in making computers make pretty lights and sounds. Outside of work I love hip hop, the Celtics, professional wrestling, magic the gathering, photography, drumming, and guitars (both making and playing them)
PawelPloszaj
I'm fronted developer with 10+ years of experience with big projects. I have small backend background too
Omar Faruk
As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience.
My work spanned building and refining core features, developing dynamic website templates, integrating secure and reliable payment gateways, and optimizing the overall system architecture.
I played a key role in creating a scalable and maintainable platform to support educators and learners globally.
I'm enthusiastic about embracing new challenges and making meaningful contributions.
zipking
I am a technologist and product builder dedicated to creating high-impact solutions at the intersection of AI and specialized markets. Currently, I am focused on PropScan (EstateGuard), an AI-driven SaaS platform tailored for the Japanese real estate industry, and exploring the potential of Archify.
As an INFJ-T, I approach development with a "systems-thinking" mindset—balancing technical precision with a deep understanding of user needs. I particularly enjoy the challenge of architecting Vertical AI SaaS and optimizing Small Language Models (SLMs) to solve specific, real-world business problems. Whether I'm in a CTO-level leadership role or hands-on with the code, I thrive on building tools that turn complex data into actionable value.
Tejas Chokhawala
Full-stack engineer with 5 years experience building production web apps using React, Next.js and TypeScript.
Focused on performance, clean architecture and shipping fast.
Experienced with Supabase/Postgres backends, Stripe billing, and building AI-assisted developer tools.
Bastien Labelle
Full stack dev w/ 20+ years of experience
Luca Liberati
I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
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.