How to Handle Database Connection Pooling

In this article, connection pooling is introduced as a strategy to optimize server-to-database communication. By maintaining a pool of reusable connections, requests can access the database without opening new connections each time, reducing delays and maximizing resource usage. The use of connection pooling eliminates the need for constant connection creation and destruction, resulting in faster queries and reduced system resources consumption. The article demonstrates the concept using Node.js and PostgreSQL as an example application, showcasing how to implement connection pooling with the node-postgres library and Prometheus metrics for performance monitoring.

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