Description: Field selection in GraphQL refers to the process of choosing which specific fields to retrieve in a query or mutation. Unlike traditional REST APIs, where data is returned in a predefined format, GraphQL allows developers to specify exactly what information they need. This not only optimizes bandwidth usage but also enhances application efficiency by reducing the amount of unnecessary data transferred. Field selection is performed using a clear and concise syntax, where fields are listed in the query, allowing for great flexibility and customization. This feature is particularly useful in applications that require data from multiple sources or handle large volumes of information, as it enables developers to tailor responses to the specific needs of the application. Additionally, field selection facilitates the evolution of APIs, as changes in the backend do not affect clients that only request the fields they need.
