This article will provide a comprehensive guide on setting up a Node.js server and integrating it with a PostgreSQL database using the Knex SQL query builder, all within the Express.js framework — In today’s data-driven world, setting up a reliable, efficient, and scalable server is crucial for any web application. As technology evolves, a combination of Node.js, PostgreSQL, Express, and Knex.js has emerged as an increasingly popular stack for server-side development.