Does Supabase Work With Mongoose?
Supabase and Mongoose don't work together natively—Supabase uses PostgreSQL while Mongoose requires MongoDB—but you can bridge them with custom adapters or use Supabase's PostgreSQL with an ORM like Prisma instead.
Quick Facts
How Supabase Works With Mongoose
Supabase and Mongoose are fundamentally mismatched: Supabase is built on PostgreSQL (a relational database), while Mongoose is an ODM (Object Data Modeling) library designed exclusively for MongoDB. There's no direct integration because they operate on different database paradigms. However, developers sometimes attempt this combination when they want Supabase's authentication, realtime subscriptions, and hosted infrastructure alongside Mongoose schemas. The workaround involves treating Supabase as purely an auth and realtime provider, while maintaining a separate MongoDB instance for your data—essentially running two databases in parallel. This creates synchronization challenges and defeats Supabase's unified architecture benefits. A better approach is to replace Mongoose entirely: use Prisma or TypeORM with Supabase's PostgreSQL, or use MongoDB Atlas with a different auth solution (Auth0, Firebase Auth). If you're committed to Mongoose schemas and want Supabase features, you'd need to build a custom adapter that converts Mongoose operations to Supabase REST API calls, which is complex and rarely worth the effort. Most developers in this situation either switch to Prisma (compatible with Supabase) or abandon Supabase in favor of MongoDB Atlas with a separate auth provider.
Best Use Cases
Workaround: Separate DB Access with Shared Auth
npm install @supabase/supabase-js mongoose dotenvimport { createClient } from '@supabase/supabase-js';
import mongoose from 'mongoose';
const supabase = createClient(process.env.SUPABASE_URL, process.env.SUPABASE_KEY);
await mongoose.connect(process.env.MONGODB_URI);
// Supabase handles auth
const { data: { user }, error: authError } = await supabase.auth.signInWithPassword({
email: 'user@example.com',
password: 'password'
});
// Mongoose handles MongoDB data independently
const userSchema = new mongoose.Schema({ name: String, email: String });
const User = mongoose.model('User', userSchema);
const mongoUser = await User.findOne({ email: user.email });
console.log('Auth:', user.id, 'MongoDB data:', mongoUser);
// ⚠️ Manual sync required—they don't know about each otherKnown Issues & Gotchas
Schema validation mismatch: Mongoose enforces schemas on the application layer, but Supabase data exists in PostgreSQL with different constraint systems
Fix: Maintain two separate data models and manually sync validation logic, or abandon one database entirely
No realtime sync between MongoDB and Supabase—updates in one don't propagate to the other automatically
Fix: Implement custom event listeners and webhook handlers to sync data, or use a single database source
Supabase realtime subscriptions only work with PostgreSQL tables, not with Mongoose models
Fix: Use Mongoose change streams for MongoDB realtime, keep them separate from Supabase realtime
Authentication tokens from Supabase won't validate Mongoose queries automatically
Fix: Implement manual token validation middleware before any Mongoose operations
Alternatives
- •Prisma + Supabase: Native PostgreSQL ORM that works seamlessly with Supabase's database and realtime
- •TypeORM + Supabase: Another PostgreSQL-compatible ORM offering similar benefits to Prisma
- •Mongoose + MongoDB Atlas + Auth0: Keep MongoDB/Mongoose, use separate auth provider, skip Supabase entirely
Resources
Related Compatibility Guides
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