Bolt database

Supabase Connection Timeout - Auth or Database Requests Hang

Requests to Supabase hang indefinitely or timeout after 30 seconds. Login, signup, or database queries never complete.

The app connects fine locally but fails on deployment, or works initially then starts timing out under load.

Error Messages You Might See

Error: connection timeout after 30000ms Fetch failed: timeout waiting for response Error: Policy violation - permission denied
Error: connection timeout after 30000msFetch failed: timeout waiting for responseError: Policy violation - permission denied

Common Causes

  1. Supabase URL or API key incorrect or not loaded from env
  2. Network firewall blocking Supabase API domain
  3. Session token expired and refresh failing silently
  4. Database query taking too long without timeout handling
  5. RLS (Row Level Security) policies blocking all queries

How to Fix It

Verify environment variables: console.log(process.env.NEXT_PUBLIC_SUPABASE_URL)

Add timeout to Supabase client: const client = createClient(url, key, { realtime: { timeout: 10000 } })

Check RLS policies on tables - ensure logged-in users can actually select/insert

Use Supabase dashboard to test queries directly

Real developers can help you.

Stanislav Prigodich Stanislav Prigodich 15+ years building iOS and web apps at startups and enterprise companies. I want to use that experience to help builders ship real products - when something breaks, I'm here to fix it. Jen Jacobsen Jen Jacobsen I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses. I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain. Matt Butler Matt Butler Software Engineer @ AWS Anthony Akpan Anthony Akpan Developer with 8 years of experience building softwares fro startups MFox MFox Full-stack professional senior engineer (15+years). Extensive experience in software development, qa, and IP networking. hanson1014 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. Luca Liberati Luca Liberati I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture Milan Surelia 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: šŸ’” Developing cross-platform apps using Flutter, Dart, and Jetpack Compose for Android, iOS, and Web. šŸ–‹ļø Sharing insights through technical writing, blogging, and open-source contributions. šŸ¤ Collaborating closely with designers, PMs, and developers to build seamless mobile experiences. Notable Achievements: šŸŽÆ Revamped the Vepaar app into Vepaar Store & CRM with a 2x performance boost and smoother UX. šŸš€ Launched Compose101 — a Jetpack Compose starter kit to speed up Android development. 🌟 Open source contributions on Github & StackOverflow for Flutter & Dart šŸŽ–ļø 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. Prakash Prajapati 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. David Olverson David Olverson Solo dev shipping production apps with AI-assisted development. I specialize in rescuing broken Lovable/Bolt/Cursor builds and taking them to production. 10+ apps shipped including SaaS CRMs, gaming platforms, real estate tools, and Discord bots. Stack: Next.js 16, TypeScript, Tailwind CSS, FastAPI, PostgreSQL, Prisma. I use Claude Code with 50+ custom skills for rapid delivery. Average turnaround: 2-4 weeks from broken prototype to production.

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Frequently Asked Questions

How do I debug Supabase RLS issues?

Test queries in Supabase dashboard SQL editor logged in as your user. Check RLS policies in table settings

What's a good timeout for Supabase queries?

10-15 seconds for most queries. Increase for complex aggregations

Why does Supabase work locally but not deployed?

Check that NEXT_PUBLIC_SUPABASE_URL and NEXT_PUBLIC_SUPABASE_ANON_KEY are set in deployment environment

Related Bolt Issues

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