Description: Node Subscription is a feature of GraphQL that allows clients to receive real-time updates for specific nodes within a data schema. Unlike traditional queries, which only return data at a given moment, subscriptions enable clients to establish a persistent connection with the server. This means that when a change occurs in the data of a specific node, the server can automatically notify all subscribed clients by sending the relevant updates. This functionality is particularly useful in applications where information changes frequently, such as collaborative tools, messaging systems, or dynamic content platforms. Node Subscription relies on the use of WebSockets or similar technologies to keep the connection open, allowing for efficient bidirectional communication. Additionally, this feature seamlessly integrates with the GraphQL data model, enabling developers to define what data they want to receive in updates, providing a high degree of flexibility and customization. In summary, Node Subscription is a powerful tool that enhances interactivity and user experience in modern applications, facilitating real-time data delivery.
