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SQLAlchemy Pooling for Serverless FastAPI: QueuePool vs. NullPool

June 10, 2025

SQLAlchemy Pooling for Serverless FastAPI: QueuePool vs. NullPool

A Guide to Resilient Database Connections with Neon and SQLAlchemy

Compare SQLAlchemy's QueuePool and NullPool for connecting FastAPI to serverless databases like Neon. Learn why NullPool with an external pooler is the recommended and more scalable strategy for production.

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