Express GraphQL
Express GraphQL is a middleware for Express.js that enables the creation of GraphQL servers in Node.js applications. It provides a simple way to integrate GraphQL APIs with Express, handling HTTP requests and responses for GraphQL queries and mutations. This allows developers to build flexible, efficient APIs with a single endpoint for data fetching.
Developers should use Express GraphQL when building GraphQL APIs in Node.js environments that require integration with Express.js for routing, middleware, or other web server features. It's ideal for projects needing a robust backend with GraphQL's query flexibility, such as real-time applications, mobile backends, or complex data aggregation systems. This combination leverages Express's ecosystem while providing GraphQL's benefits like reduced over-fetching and strong typing.