"Expert patterns for Neon serverless Postgres, branching, connection pooling, and Prisma/Drizzle integration Use when: neon database, serverless postgres, database branching, neon postgres, postgres serverless."
Neon Postgres
Patterns
Prisma with Neon Connection
Configure Prisma for Neon with connection pooling.
Use two connection strings:
- DATABASE_URL: Pooled connection for Prisma Client
- DIRECT_URL: Direct connection for Prisma Migrate
The pooled connection uses PgBouncer for up to 10K connections.
Direct connection required for migrations (DDL operations).
Drizzle with Neon Serverless Driver
Use Drizzle ORM with Neon's serverless HTTP driver for
edge/serverless environments.
Two driver options:
- neon-http: Single queries over HTTP (fastest for one-off queries)
- neon-serverless: WebSocket for transactions and sessions
Connection Pooling with PgBouncer
Neon provides built-in connection pooling via PgBouncer.
Key limits:
- Up to 10,000 concurrent connections to pooler
- Connections still consume underlying Postgres connections
- 7 connections reserved for Neon superuser
Use pooled endpoint for application, direct for migrations.
⚠️ Sharp Edges
| Issue | Severity | Solution |
|---|---|---|
| Issue | high | See docs |
| Issue | high | See docs |
| Issue | high | See docs |
| Issue | medium | See docs |
| Issue | medium | See docs |
| Issue | low | See docs |
| Issue | medium | See docs |
| Issue | high | See docs |
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