--- title: How to Handle Database Connection Pooling | daily.dev description: A practical guide to database connection pooling using Node.js, PostgreSQL, and the node-postgres (pg) library. Explains the concept with a taxi analogy, then... canonical: https://daily.dev/posts/how-to-handle-database-connection-pooling-7dtkv6yyo twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: How to Handle Database Connection Pooling | daily.dev og:description: A practical guide to database connection pooling using Node.js, PostgreSQL, and the node-postgres (pg) library. Explains the concept with a taxi analogy, then... og:url: https://daily.dev/posts/how-to-handle-database-connection-pooling-7dtkv6yyo og:image: https://api.daily.dev/og/posts/7DtKv6yyo.png og:image:alt: How to Handle Database Connection Pooling og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # How to Handle Database Connection Pooling **[Railway Blog](https://daily.dev/sources/railway-blog)** · 14 min read · 0 upvotes · 0 comments ## Summary A practical guide to database connection pooling using Node.js, PostgreSQL, and the node-postgres (pg) library. Explains the concept with a taxi analogy, then demonstrates implementation by comparing normal client connections vs. pooled connections. Uses Prometheus prom-client to measure performance, showing pooled connections completing queries nearly 3x faster. Also covers drawbacks like pool exhaustion, idle connections, and security considerations, with pointers to PgBouncer for production use cases. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Node.js and MySQL Connection Pool Example](https://daily.dev/posts/node-js-and-mysql-connection-pool-example-hktn4qnpv) · Planet MySQL · 0 upvotes · 0 comments - [Google Introduces Managed Connection Pooling for AlloyDB](https://daily.dev/posts/google-introduces-managed-connection-pooling-for-alloydb-3jt7lyzbz) · InfoQ · 0 upvotes · 0 comments - [Connection pooling strategies in Amazon Aurora DSQL](https://daily.dev/posts/connection-pooling-strategies-in-amazon-aurora-dsql-g4hpbgqfy) · AWS Database Blog · 0 upvotes · 0 comments - [The Deep End](https://daily.dev/posts/the-deep-end-yjgj5j5bn) · Planet PostgreSQL · 0 upvotes · 0 comments --- Tags: [#javascript](https://daily.dev/tags/javascript), [#postgresql](https://daily.dev/tags/postgresql), [#prometheus](https://daily.dev/tags/prometheus) [View this post on daily.dev](https://daily.dev/posts/how-to-handle-database-connection-pooling-7dtkv6yyo) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"How to Handle Database Connection Pooling","url":"https://daily.dev/posts/how-to-handle-database-connection-pooling-7dtkv6yyo","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/how-to-handle-database-connection-pooling-7dtkv6yyo"},"datePublished":"2026-03-31T12:30:10.272Z","dateModified":"2026-03-31T12:51:15.513Z","description":"A practical guide to database connection pooling using Node.js, PostgreSQL, and the node-postgres (pg) library. 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