A GraphQL schema defines types. Each type — except for scalar types like Int, Float or String — has fields which define the relationship between this type and other types (one to one, or one to many). If you think about your schema in terms of a graph, types are the nodes of your graph, and fields are edges. Scalar types have no fields, so they form the leaf nodes of your graph.

A GraphQL query is just an instruction for traversing the graph in a specific way, resulting in a tree.

When traversing a tree, you would start at the root, but a graph has no root so there is no logical starting point!

#graphql #access control