Description: Relay subscription is a mechanism in GraphQL designed to optimize data management in applications that require real-time updates. Unlike traditional queries, which return a static set of data, subscriptions allow clients to receive dynamic updates when data changes on the server. This is particularly useful in interactive applications, such as collaborative tools or dashboards, where information can change frequently. Relay, a JavaScript library developed by Facebook, focuses on efficiency and scalability in data handling, and its approach to subscriptions enables developers to implement real-time features more easily and effectively. Relay subscriptions use a cache-based approach to store and manage data, minimizing the need for multiple requests to the server and enhancing user experience by providing instant updates. This approach not only optimizes application performance but also simplifies development by providing a clear structure for handling real-time data.
