Building GraphQL APIs with PostgreSQL

GraphQL enables clients to request specific data from APIs, reducing data transfer and improving performance. PostgreSQL is a reliable, feature-rich relational database with support for JSON, full-text search, and custom data types. This guide walks through creating a GraphQL API with PostgreSQL: defining a database schema for users, setting up a Node.js project with Express and Sequelize, creating a GraphQL schema with queries and mutations, implementing resolvers to interact with the database, and configuring an Express server to serve the API.