Description: A Node Interface in GraphQL defines a common set of fields that can be used by different types of nodes within a schema. This allows developers to create a more flexible and coherent data structure, facilitating data querying and manipulation. The Node Interface typically includes an ‘id’ field that provides a unique identifier for each node, which is crucial for identifying and referencing objects in a system. This feature is particularly useful in applications that handle multiple related data types, as it allows API clients to interact with different types of nodes uniformly. Additionally, by using interfaces, code reuse and consistency in API responses are promoted, enhancing the experience for both developers and end users. In summary, the Node Interface is a fundamental component in GraphQL architecture, contributing to the creation of more robust and scalable APIs.